# How to integrate Slack MCP with Claude Code

```json
{
  "title": "How to integrate Slack MCP with Claude Code",
  "toolkit": "Slack",
  "toolkit_slug": "slack",
  "framework": "Claude Code",
  "framework_slug": "claude-code",
  "url": "https://composio.dev/toolkits/slack/framework/claude-code",
  "markdown_url": "https://composio.dev/toolkits/slack/framework/claude-code.md",
  "updated_at": "2026-05-12T10:26:29.915Z"
}
```

## Introduction

Manage your Slack directly from Claude Code with zero worries about OAuth hassles, API-breaking issues, or reliability and security concerns.
You can do this in two different ways:
- Via [Composio Connect](https://dashboard.composio.dev/login?utm_source=toolkits&utm_medium=framework_template&utm_campaign=claude-code&utm_content=composio_connect&next=%2F~%2Forg%2Fconnect%2Fclients%2Fclaude-code) - Direct and easiest approach
- Via [Composio SDK](https://docs.composio.dev/docs?utm_source=toolkits&utm_medium=framework_template&utm_campaign=claude-code&utm_content=composio_sdk) - Programmatic approach with more control

## Also integrate Slack with

- [ChatGPT](https://composio.dev/toolkits/slack/framework/chatgpt)
- [OpenAI Agents SDK](https://composio.dev/toolkits/slack/framework/open-ai-agents-sdk)
- [Claude Agent SDK](https://composio.dev/toolkits/slack/framework/claude-agents-sdk)
- [Claude Cowork](https://composio.dev/toolkits/slack/framework/claude-cowork)
- [Codex](https://composio.dev/toolkits/slack/framework/codex)
- [Cursor](https://composio.dev/toolkits/slack/framework/cursor)
- [VS Code](https://composio.dev/toolkits/slack/framework/vscode)
- [OpenCode](https://composio.dev/toolkits/slack/framework/opencode)
- [OpenClaw](https://composio.dev/toolkits/slack/framework/openclaw)
- [Hermes](https://composio.dev/toolkits/slack/framework/hermes-agent)
- [CLI](https://composio.dev/toolkits/slack/framework/cli)
- [Google ADK](https://composio.dev/toolkits/slack/framework/google-adk)
- [LangChain](https://composio.dev/toolkits/slack/framework/langchain)
- [Vercel AI SDK](https://composio.dev/toolkits/slack/framework/ai-sdk)
- [Mastra AI](https://composio.dev/toolkits/slack/framework/mastra-ai)
- [LlamaIndex](https://composio.dev/toolkits/slack/framework/llama-index)
- [CrewAI](https://composio.dev/toolkits/slack/framework/crew-ai)

## TL;DR

- Only one MCP URL to connect multiple apps with Claude Code with zero auth hassles.
- Programmatic tool calling allows LLMs to write its code in a remote workbench to handle complex tool chaining. Reduces to-and-fro with LLMs for frequent tool calling.
- Handling Large tool responses out of LLM context to minimize context rot.
- Dynamic just-in-time access to 20,000 tools across 1000+ other Apps for cross-app workflows. It loads the tools you need, so LLMs aren't overwhelmed by tools you don't need.

## Connect Slack to Claude Code

### Connecting Slack to Claude Code using Composio
1. Add the Composio MCP to Claude

```bash
claude mcp add --scope user --transport http composio https://connect.composio.dev/mcp
```

## What is Claude Code?

Claude Code is Anthropic's command line developer tool that lets you use Claude directly inside your terminal. Instead of switching between your editor, browser, and chat, you can stay in your project folder and ask Claude to help you build, debug, refactor, and understand code right where you're working.
Key features include:
- Terminal-Native Experience: Work with Claude directly in your command line without switching contexts
- MCP Support: Built-in support for Model Context Protocol servers to extend Claude's capabilities
- Project Context: Claude understands your project structure and can read, write, and modify files
- Interactive Development: Ask questions, debug code, and get help in real-time while coding
- Multi-Platform: Works on macOS, Linux, WSL, and Windows

## What is the Slack MCP server, and what's possible with it?

The Slack MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Slack account. It provides structured and secure access to your messages, channels, files, and reminders, so your agent can send messages, manage conversations, organize reminders, and interact with channel content—all on your behalf.
- Automated messaging and reminders: Let your agent send messages to channels, create reminders with natural language timing, and help your team stay on track.
- Emoji and reaction management: Have the agent add custom emoji, create emoji aliases, or react to messages with specific emojis to keep conversations lively and expressive.
- Channel and conversation organization: Ask the agent to archive inactive channels or close direct message threads, keeping your Slack workspace neat and focused.
- File and external content sharing: Enable your agent to add references to external files from services like Google Drive or Dropbox, making collaboration seamless without leaving Slack.
- Starring and prioritizing items: Let the agent star important channels, files, or messages so your priorities are always front and center.

## Supported Tools

| Tool slug | Name | Description |
|---|---|---|
| `SLACK_ADD_CALL_PARTICIPANTS` | Add call participants | Registers new participants added to a Slack call. |
| `SLACK_ADD_EMOJI` | Add emoji | Adds a custom emoji to a Slack workspace given a unique name and an image URL; subject to workspace emoji limits. |
| `SLACK_ADD_AN_EMOJI_ALIAS_IN_SLACK` | Add an emoji alias | Adds an alias for an existing custom emoji in a Slack Enterprise Grid organization. |
| `SLACK_ADD_ENTERPRISE_USER_TO_WORKSPACE` | Add Enterprise user to workspace | Adds an Enterprise user to a workspace. Use when you need to assign an existing Enterprise Grid user to a specific workspace with optional guest restrictions. |
| `SLACK_ADD_REACTION_TO_AN_ITEM` | Add reaction to message | Adds a specified emoji reaction to an existing message in a Slack channel, identified by its timestamp; does not remove or retrieve reactions. |
| `SLACK_ADD_A_REMOTE_FILE_FROM_A_SERVICE` | Add a remote file | Adds a reference to an external file (e.g., Google Drive, Dropbox) to Slack for discovery and sharing, requiring a unique `external_id` and an `external_url` accessible by Slack. |
| `SLACK_ADD_A_STAR_TO_AN_ITEM` | Add a star to an item | Stars a channel, file, file comment, or a specific message in Slack. |
| `SLACK_ADMIN_CONVERSATIONS_SEARCH` | Search for channels in Enterprise organization | Tool to search for public or private channels in an Enterprise organization. Use when you need to find channels by name, type, or other criteria within an Enterprise Grid workspace. |
| `SLACK_API_TEST` | Test Slack API connection | Tool to check API calling code by testing connectivity and authentication to the Slack API. Use when you need to verify that API credentials are valid and the connection is working properly. |
| `SLACK_ARCHIVE_CONVERSATION` | Archive a Slack conversation | Archives a Slack conversation by its ID, rendering it read-only and hidden while retaining history, ideal for cleaning up inactive channels; be aware that some channels (like #general or certain DMs) cannot be archived and this may impact connected integrations. |
| `SLACK_ASSISTANT_SEARCH_CONTEXT` | Real-time search | Search Slack messages, files, channels, and users via Real-time Search API. For queries referencing entities by name (users/channels/files), first resolve with content_types (users/channels/files) to get exact ID. If multiple matches, ask user to clarify before proceeding (e.g. ask for user email). |
| `SLACK_ASSISTANT_SEARCH_INFO` | Check search capabilities | Check if semantic (AI-powered) search is available on the Slack workspace. Returns whether natural language queries will trigger semantic search in assistant.search.context calls. |
| `SLACK_CLOSE_DM` | Close conversation channel | Closes a Slack direct message (DM) or multi-person direct message (MPDM) channel, removing it from the user's sidebar without deleting history; this action affects only the calling user's view. |
| `SLACK_CONVERT_CHANNEL_TO_PRIVATE` | Convert public channel to private | Convert a public Slack channel to private using the Admin API. This is an Enterprise Grid only feature and requires an org-installed user token with admin.conversations:write scope. |
| `SLACK_CREATE_A_REMINDER` | Create a reminder | Creates a Slack reminder with specified text and time; time accepts Unix timestamps, seconds from now, or natural language (e.g., 'in 15 minutes', 'every Thursday at 2pm'). |
| `SLACK_CREATE_CANVAS` | Create Slack Canvas | Creates a new Slack Canvas with the specified title and optional content. |
| `SLACK_CREATE_CHANNEL` | Create channel | Initiates a public or private channel-based conversation in a Slack workspace. Immediately creates the channel; invoke only after explicit user confirmation. |
| `SLACK_CREATE_CHANNEL_BASED_CONVERSATION` | Create a channel-based conversation | Creates a new public or private Slack channel with a unique name; the channel can be org-wide, or team-specific if `team_id` is given (required if `org_wide` is false or not provided). |
| `SLACK_CREATE_ENTERPRISE_TEAM` | Create Enterprise team | Tool to create an Enterprise team in Slack. Use when you need to create a new team (workspace) within an Enterprise Grid organization. Requires admin.teams:write scope. |
| `SLACK_CREATE_USER_GROUP` | Create a Slack user group | Creates a new User Group (often referred to as a subteam) in a Slack workspace. |
| `SLACK_CUSTOMIZE_URL_UNFURL` | Customize URL unfurl | Customizes URL previews (unfurling) in a specific Slack message using a URL-encoded JSON in `unfurls` to define custom content or remove existing previews. |
| `SLACK_DELETE_CANVAS` | Delete Slack Canvas | Deletes a Slack Canvas permanently and irreversibly. Always confirm with the user before calling this tool. |
| `SLACK_DELETE_CHANNEL` | Delete a public or private channel | Permanently and irreversibly deletes a specified public or private channel, including all its messages and files, within a Slack Enterprise Grid organization. |
| `SLACK_DELETE_FILE` | Delete a file by ID | Permanently deletes an existing file from a Slack workspace using its unique file ID; this action is irreversible and also removes any associated comments or shares. |
| `SLACK_DELETE_FILE_COMMENT` | Delete file comment | Deletes a specific comment from a file in Slack; this action is irreversible. |
| `SLACK_DELETE_REMINDER` | Delete a Slack reminder | Deletes an existing Slack reminder, typically when it is no longer relevant or a task is completed; this operation is irreversible. |
| `SLACK_DELETES_A_MESSAGE_FROM_A_CHAT` | Delete a message from a chat | Deletes a message, identified by its channel ID and timestamp, from a Slack channel, private group, or direct message conversation; the authenticated user or bot must be the original poster. |
| `SLACK_DELETE_SCHEDULED_MESSAGE` | Delete scheduled chat message | Deletes a pending, unsent scheduled message from the specified Slack channel, identified by its `scheduled_message_id`. |
| `SLACK_DELETE_USER_PROFILE_PHOTO` | Delete user profile photo | Deletes the Slack profile photo for the user identified by the token, reverting them to the default avatar; this action is irreversible and succeeds even if no custom photo was set. |
| `SLACK_DISABLE_USER_GROUP` | Disable a Slack user group | Disables a specified, currently enabled Slack User Group by its unique ID, effectively archiving it by setting its 'date_delete' timestamp; the group is not permanently deleted and can be re-enabled. |
| `SLACK_DOWNLOAD_SLACK_FILE` | Download Slack file | Tool to download Slack file content and convert it to a publicly accessible URL. Use when you need to retrieve and download files that have been shared in Slack channels or conversations. |
| `SLACK_EDIT_CANVAS` | Edit Slack Canvas | Edits a Slack Canvas with granular control over content placement. Supports replace, insert (before/after/start/end) operations for flexible content management. |
| `SLACK_ENABLE_PUBLIC_SHARING_OF_A_FILE` | Share file public url | Enables public sharing for an existing Slack file by generating a publicly accessible URL; this action does not create new files. Once enabled, the file is accessible to anyone with the URL — verify intent before sharing sensitive or confidential files. |
| `SLACK_ENABLE_USER_GROUP` | Enable a user group | Enables a disabled User Group in Slack using its ID, reactivating it for mentions and permissions; this action only changes the enabled status and cannot create new groups or modify other properties. |
| `SLACK_END_CALL` | End a call | Ends an ongoing Slack call, identified by its ID (obtained from `calls.add`), optionally specifying the call's duration. |
| `SLACK_END_DND` | End DND session | Ends the authenticated user's current Do Not Disturb (DND) session in Slack, affecting only DND status and making them available; if DND is not active, Slack acknowledges the request without changing status. |
| `SLACK_END_SNOOZE` | End snooze | Ends the current user's snooze mode immediately. |
| `SLACK_FETCH_CONVERSATION_HISTORY` | Fetch conversation history | Fetches a chronological list of messages and events from a specified Slack conversation, accessible by the authenticated user/bot, with options for pagination and time range filtering. IMPORTANT LIMITATION: This action only returns messages from the main channel timeline. Threaded replies are NOT returned by this endpoint. To retrieve threaded replies, use the SLACK_FETCH_MESSAGE_THREAD_FROM_A_CONVERSATION action (conversations.replies API) instead. The oldest/latest timestamp filters work reliably for filtering the main channel timeline, but cannot be used to retrieve individual threaded replies - even if you know the exact reply timestamp, setting oldest=latest to that timestamp will return an empty messages array. To get threaded replies: 1. Use this action to get parent messages (which include thread_ts, reply_count, latest_reply fields) 2. Use SLACK_FETCH_MESSAGE_THREAD_FROM_A_CONVERSATION with the parent's thread_ts to fetch all replies in that thread |
| `SLACK_FETCH_ITEM_REACTIONS` | Fetch item reactions | Fetches reactions for a Slack message, file, or file comment. Exactly one identifier path must be provided: `channel`+`timestamp`, `file`, or `file_comment`. Mixing identifiers (e.g., providing both `channel`+`timestamp` and `file`) causes errors. If the response omits the `reactions` field, the item has zero reactions. |
| `SLACK_FETCH_MESSAGE_THREAD_FROM_A_CONVERSATION` | Retrieve conversation replies | Retrieves replies to a specific parent message in a Slack conversation, using the channel ID and the parent message's timestamp (`ts`). Note: The parent message in the response contains metadata (reply_count, reply_users, latest_reply) that indicates expected thread activity. If the returned messages array contains fewer replies than reply_count indicates, check: (1) has_more=true means pagination is needed, (2) recently posted replies may have timing delays, (3) some replies may be filtered by permissions or deleted. The composio_execution_message field will warn about any detected mismatches. |
| `SLACK_FETCH_TEAM_INFO` | Fetch team info | Fetches comprehensive metadata about the current Slack team, or a specified team if the provided ID is accessible. |
| `SLACK_FIND_CHANNELS` | Find channels | Find channels in a Slack workspace by any criteria - name, topic, purpose, or description. Returns channel IDs (C*/G* prefixed) required by most Slack tools — always resolve names to IDs here before passing to other tools. NOTE: This action searches channels and conversations visible to the authenticated user. Empty results may indicate: - No channels match the search query in name, topic, or purpose - The target private channel or DM is not accessible to the authenticated user because they are not a member - The connection lacks required read scopes (channels:read, groups:read, im:read, mpim:read). If empty, retry with exact_match=false or exclude_archived=false to avoid false negatives. In large workspaces, paginate using next_cursor to avoid missing matches. Check 'composio_execution_message' and 'total_channels_searched' in the response for details. |
| `SLACK_FIND_USER_BY_EMAIL_ADDRESS` | Lookup users by email | Retrieves the Slack user object for an active user by their registered email address; requires the users:read.email OAuth scope. Fails with 'users_not_found' if the email is unregistered, the user is inactive, the account is a guest, or the email is hidden by workspace privacy settings. |
| `SLACK_FIND_USERS` | Find users | Find users in a Slack workspace by any criteria - email, name, display name, or other text. Includes optimized email lookup for exact email matches. Zero results may reflect email visibility restrictions or workspace policies, not global absence. Repeated calls may trigger HTTP 429; honor the Retry-After header. |
| `SLACK_GET_AUDIT_ACTION_TYPES` | Get Audit Action Types | Tool to retrieve information about action types available in the Slack Audit Logs API. Use when you need to know which action types can be used to filter audit logs or understand the categories of auditable actions in Slack. |
| `SLACK_GET_AUDIT_SCHEMAS` | Get Audit Schemas | Tool to retrieve object schema information from the Slack Audit Logs API. Use when you need to understand the types of objects returned by audit log endpoints. Returns a list of all object types with descriptions. |
| `SLACK_GET_BOT_USER` | Fetch bot user information | Fetches information for a specified, existing Slack bot user; will not work for regular user accounts or other integration types. |
| `SLACK_GET_CALL_INFO` | Retrieve call information | Retrieves a point-in-time snapshot of a specific Slack call's information. |
| `SLACK_GET_CHANNEL_CONVERSATION_PREFERENCES` | Get channel conversation preferences | Retrieves conversation preferences (e.g., who can post, who can thread) for a specified channel, primarily for use within Slack Enterprise Grid environments. |
| `SLACK_GET_REMINDER` | Get reminder information | Retrieves detailed information for an existing Slack reminder specified by its ID; this is a read-only operation. |
| `SLACK_GET_REMOTE_FILE` | Get remote file | Retrieve information about a remote file added to Slack via the files.remote API. Does not work for standard Slack-hosted file uploads. |
| `SLACK_GET_TEAM_PROFILE` | Retrieve team profile details | Retrieves all profile field definitions for a Slack team, optionally filtered by visibility, to understand the team's profile structure. |
| `SLACK_GET_USER_DND_STATUS` | Get team DND status | Retrieves a user's current Do Not Disturb status. |
| `SLACK_GET_USER_PRESENCE` | Retrieve user presence | Retrieves a Slack user's current real-time presence (e.g., 'active', 'away') to determine their availability, noting this action does not provide historical data or status reasons. |
| `SLACK_GET_WORKSPACE_CONNECTIONS_FOR_CHANNEL` | Get workspace connections for channel | Tool to get all workspaces a channel is connected to within an Enterprise org. Use when you need to determine which workspaces have access to a specific public or private channel in an Enterprise Grid organization. |
| `SLACK_GET_WORKSPACE_SETTINGS` | Fetch workspace settings information | Retrieves detailed settings for a specific Slack workspace, primarily for administrators in an Enterprise Grid organization to view or audit workspace configurations. |
| `SLACK_INVITE_USERS_TO_A_SLACK_CHANNEL` | Invite users to a Slack channel | Invites users to an existing Slack channel using their valid Slack User IDs. Response is always HTTP 200; inspect `ok`, `error`, and `errors` fields to confirm users were added. |
| `SLACK_INVITE_USER_TO_CHANNEL` | Invite users to channel | Invites users to a specified Slack channel; this action is restricted to Enterprise Grid workspaces and requires the authenticated user to be a member of the target channel. |
| `SLACK_INVITE_USER_TO_WORKSPACE` | Invite user to workspace | Invites a user to a Slack workspace and specified channels by email; use `resend=True` to re-process an existing invitation for a user not yet signed up. |
| `SLACK_JOIN_AN_EXISTING_CONVERSATION` | Join conversation by channel id | Joins an existing Slack conversation (public channel, private channel, or multi-person direct message) by its ID, if the authenticated user has permission. Joining an already-joined channel returns a non-fatal no-op response. Private or restricted channel joins may fail with a permission error. |
| `SLACK_LEAVE_CONVERSATION` | Leave conversation channel | Leaves a Slack conversation given its channel ID; fails if leaving as the last member of a private channel or if used on a Slack Connect channel. |
| `SLACK_LIST_ADMIN_APPS_APPROVED` | List approved apps | Tool to list approved apps for an Enterprise Grid organization or workspace. Use when you need to retrieve the list of apps that have been approved for installation by workspace admins. Requires admin.apps:read scope and a user token from an org owner/admin context. |
| `SLACK_LIST_ADMIN_APPS_REQUESTS` | List app requests | Tool to list pending app installation requests for a team/workspace. Use when you need to see which apps users have requested to install that haven't yet been approved or denied. Requires Enterprise Grid or Business+ plan with admin.apps:read scope. |
| `SLACK_LIST_ADMIN_EMOJI` | List admin emoji | List custom emoji across an Enterprise Grid organization. Use when you need to retrieve all custom emoji for an entire Enterprise Grid org (not just a single workspace). Requires admin.teams:read scope and an admin token. For single workspace emoji, use the regular emoji.list method instead. |
| `SLACK_LIST_ALL_CHANNELS` | List all channels | Lists conversations available to the user with various filters and search options. Always use resolved `channel_id` (not display names) for downstream operations, as names may be non-unique. The `created` field in results is a Unix epoch timestamp (UTC). Pagination across large workspaces may return HTTP 429 with a `Retry-After` header; honor the delay and resume from the last successful cursor. |
| `SLACK_LIST_ALL_USERS` | List all users | Retrieves a paginated list of all users with profile details, status, and team memberships in a Slack workspace; data may not be real-time. Filter response fields `is_bot`, `is_app_user`, and `deleted` to build human-only rosters. Profile fields like `email` and `phone` may be absent depending on OAuth scopes and workspace privacy settings. Guest/restricted accounts may be omitted based on scopes—do not treat results as a complete directory. High-frequency calls risk HTTP 429; honor the `Retry-After` header and throttle to ~1–2 requests/second. Use stable user IDs rather than display names for mapping. Prefer SLACK_FIND_USERS for targeted lookups; cache results to avoid full-workspace fetches. |
| `SLACK_LIST_APPROVED_WORKSPACE_INVITE_REQUESTS` | List approved workspace invite requests | List all approved workspace invite requests with pagination support. Use to review which invite requests have been approved and the details of each approval. Requires admin.invites:read scope and Enterprise Grid organization. |
| `SLACK_LIST_AUTH_TEAMS` | List authorized teams | Obtains a paginated list of workspaces your org-wide app has been approved for. Use when you need to discover all workspaces within an organization where the app is installed. |
| `SLACK_LIST_CONVERSATIONS` | List conversations | List conversations (channels/DMs) accessible to a specified user (or the authenticated user if no user ID is provided), respecting shared membership for non-public channels. Returns conversation IDs (C* for channels, G* for group DMs), not display names. Absence of private channels, DMs, or MPIMs from results indicates token scope or membership limits, not that the conversation is nonexistent. |
| `SLACK_LIST_CUSTOM_EMOJIS` | List team custom emojis | Retrieves all custom emojis for the Slack workspace (image URLs or aliases), not standard Unicode emojis; does not include usage statistics or creation dates. |
| `SLACK_LIST_DENIED_WORKSPACE_INVITE_REQUESTS` | List denied workspace invite requests | Tool to list all denied workspace invite requests with details about who denied them and when. Use when you need to review or audit denied invitation requests. |
| `SLACK_LIST_ENTERPRISE_TEAMS` | List Enterprise teams | List all teams (workspaces) in a Slack Enterprise Grid organization with pagination support. Use when you need to retrieve team IDs, names, domains, and metadata for all workspaces in an Enterprise. Requires admin.teams:read scope and Enterprise Grid organization. |
| `SLACK_LIST_FILES_WITH_FILTERS_IN_SLACK` | List Slack files | Lists files and their metadata within a Slack workspace, filterable by user, channel, timestamp, or type; returns metadata only, not file content. Results are limited to files visible to the authenticated user — files in private channels or restricted to certain members require appropriate membership and permissions. For large workspaces, check `paging.pages` in the response to determine total pages when paginating. |
| `SLACK_LIST_IDP_GROUPS_LINKED_TO_CHANNEL` | List IDP groups linked to channel | Lists IDP groups that have restricted access to a private Slack channel. Use when you need to see which identity provider groups can access a specific channel. |
| `SLACK_LIST_PENDING_WORKSPACE_INVITE_REQUESTS` | List pending workspace invite requests | Tool to list all pending workspace invite requests. Use when you need to see who has been invited but hasn't joined yet. Requires admin.invites:read scope. |
| `SLACK_LIST_PINNED_ITEMS` | List pinned items in a channel | Retrieves all messages and files pinned to a specified channel; the caller must have access to this channel. |
| `SLACK_LIST_REMINDERS` | List reminders | Lists all reminders with their details for the authenticated Slack user; returns an empty array if no reminders exist (valid state, not an error). Reminder text is not unique—perform client-side matching on returned objects before extracting a reminder ID for use with SLACK_DELETE_A_SLACK_REMINDER. |
| `SLACK_LIST_REMOTE_FILES` | List remote files | Retrieve information about a team's remote files. |
| `SLACK_LIST_RESTRICTED_APPS` | List Restricted Apps | Tool to list restricted apps for an org or workspace. Use when you need to view apps that have been restricted from installation. Requires admin.apps:read scope and appropriate admin permissions. |
| `SLACK_LIST_SCHEDULED_MESSAGES` | List scheduled messages | Retrieves a list of pending (not yet delivered) messages scheduled in a specific Slack channel, or across all accessible channels if no channel ID is provided, optionally filtered by time and paginated. |
| `SLACK_LIST_STARRED_ITEMS` | List starred items | Lists items starred by a user. Returns classic starred items only — does not reflect Slack's 'saved for later' feature. Use SLACK_SEARCH_MESSAGES or SLACK_SEARCH_ALL for broader saved-content queries. |
| `SLACK_LIST_USER_GROUP_MEMBERS` | List all users in a user group | Retrieves a list of all user IDs within a specified Slack user group, with an option to include users from disabled groups. |
| `SLACK_LIST_USER_GROUPS` | List user groups | Lists user groups in a Slack workspace, including user-created and default groups; results for large workspaces may be paginated. |
| `SLACK_LIST_USER_REACTIONS` | List user reactions | Lists all reactions added by a specific user to messages, files, or file comments in Slack, useful for engagement analysis when the item content itself is not required. Results are paginated; check `response_metadata.next_cursor` and iterate with the `cursor` parameter to retrieve complete reaction history. |
| `SLACK_LIST_WORKSPACE_ADMINS` | List workspace admins | Tool to list all admins on a given Slack workspace. Use when you need to identify workspace administrators. Requires Enterprise Grid organization and admin.teams:read scope. |
| `SLACK_LIST_WORKSPACE_OWNERS` | List workspace owners | Tool to list all owners on a given Slack workspace. Use when you need to identify workspace ownership or admin structure. Requires admin.teams:read scope. |
| `SLACK_LIST_WORKSPACE_USERS` | List admin users | Retrieves a paginated list of admin users for a specified Slack workspace. |
| `SLACK_LOOKUP_CANVAS_SECTIONS` | Lookup Canvas Sections | Looks up section IDs in a Slack Canvas for use with targeted edit operations. Section IDs are needed for insert_after, insert_before, delete, and section-specific replace operations. |
| `SLACK_OPEN_DM` | Open DM | Opens or resumes a Slack direct message (DM) or multi-person direct message (MPIM) by providing either user IDs or an existing channel ID. Returns `already_open=true` when the DM exists — treat as success and reuse the returned `channel.id` (starts with 'D') for subsequent SLACK_SEND_MESSAGE calls; passing a username, email, or user ID directly to SLACK_SEND_MESSAGE causes `channel_not_found`. Avoid redundant calls when an existing DM channel ID is available. |
| `SLACK_PIN_ITEM` | Pin an item to a channel | Pins a message to a specified Slack channel; the message must not already be pinned. |
| `SLACK_READ_AUDIT_LOGS` | Read Audit Logs | Read Slack Enterprise Grid Audit Logs (logins, admin changes, app installs, channel/privacy changes, etc.) with server-side filters and pagination. Requires Enterprise Grid organization with auditlogs:read scope and a user token (xoxp-...) from an owner/admin context. |
| `SLACK_REMOVE_CALL_PARTICIPANTS` | Remove call participants | Registers participants removed from a Slack call. |
| `SLACK_REMOVE_EMOJI` | Remove emoji | Tool to remove a custom emoji across an Enterprise Grid organization. Use when you need to delete a custom emoji from the entire organization. |
| `SLACK_REMOVE_REACTION_FROM_ITEM` | Remove reaction from item | Removes an emoji reaction from a message, file, or file comment in Slack. Provide exactly one targeting method: channel+timestamp together, file, or file_comment. Mixing methods or omitting all returns invalid_arguments. |
| `SLACK_REMOVE_REMOTE_FILE` | Remove remote file | Removes the Slack reference to an external file (which must have been previously added via the remote files API), specified by either its `external_id` or `file` ID (one of which is required), without deleting the actual external file. |
| `SLACK_REMOVE_STAR` | Remove a star from an item | Removes a star from a previously starred Slack item (message, file, file comment, channel, group, or DM), requiring identification via `file`, `file_comment`, `channel` (for channel/group/DM), or both `channel` and `timestamp` (for a message). |
| `SLACK_REMOVE_USER_FROM_CONVERSATION` | Remove user from conversation | Removes a specified user from a Slack conversation (channel); the caller must have permissions to remove users and cannot remove themselves using this action. |
| `SLACK_REMOVE_USER_FROM_WORKSPACE` | Remove user from workspace | Tool to remove a user from a Slack workspace. Use when you need to revoke a user's access to a workspace. |
| `SLACK_RENAME_CONVERSATION` | Rename a conversation | Renames a Slack channel, automatically adjusting the new name to meet naming conventions (e.g., converting to lowercase), which may affect integrations using the old name. |
| `SLACK_RENAME_EMOJI` | Rename an emoji | Renames an existing custom emoji in a Slack workspace, updating all its instances. |
| `SLACK_RESET_USER_SESSIONS` | Reset user sessions | Tool to wipe all valid sessions on all devices for a given user. Use when you need to force a user to re-authenticate due to security concerns or account changes. |
| `SLACK_RESTRICT_APP_INSTALLATION` | Restrict app installation | Restrict an app for installation on a workspace. Use when you need to prevent an app from being installed on a specific workspace or enterprise organization. |
| `SLACK_RETRIEVE_A_USER_S_IDENTITY_DETAILS` | Retrieve a user's identity details | Retrieves the authenticated user's and their team's identity, with details varying based on OAuth scopes (e.g., `identity.basic`, `identity.email`, `identity.avatar`). |
| `SLACK_RETRIEVE_CONVERSATION_INFORMATION` | Retrieve conversation information | Retrieves metadata for a Slack conversation by ID (e.g., name, purpose, creation date, with options for member count/locale), excluding message content. The `channel` parameter is effectively required. Private channels, DMs, or channels where the app lacks membership may return restricted data; check `is_archived` and `is_member` fields in the response to diagnose access issues. Bulk lookups may trigger HTTP 429 rate limiting; honor the `Retry-After` response header. |
| `SLACK_RETRIEVE_CONVERSATION_MEMBERS_LIST` | Get conversation members | Retrieves a paginated list of active member IDs (not names, emails, or presence) for a specified Slack public channel, private channel, DM, or MPIM. Returns only user IDs; use a user-lookup tool to enrich member data. |
| `SLACK_RETRIEVE_CURRENT_USER_DND_STATUS` | Retrieve user DND status | Retrieves a Slack user's current Do Not Disturb (DND) status to determine their availability before interaction; any specified user ID must be a valid Slack user ID. |
| `SLACK_RETRIEVE_DETAILED_INFORMATION_ABOUT_A_FILE` | Retrieve detailed file information | Retrieves detailed metadata and paginated comments for a specific Slack file ID; does not download file content. |
| `SLACK_RETRIEVE_DETAILED_USER_INFORMATION` | Retrieve detailed user information | Retrieves comprehensive information for a valid Slack user ID, excluding message history and channel memberships. Sensitive fields like `email` and `phone` require the `users:read.email` scope and may be silently omitted based on workspace privacy policies. |
| `SLACK_RETRIEVE_MESSAGE_PERMALINK_URL` | Retrieve message permalink | Retrieves a permalink URL for a specific message in a Slack channel or conversation; the permalink respects Slack's privacy settings. |
| `SLACK_RETRIEVE_USER_PROFILE_INFORMATION` | Retrieve user profile information | Retrieves profile information for a specified Slack user (defaults to the authenticated user if `user` ID is omitted); a provided `user` ID must be valid. Sensitive fields like email and phone may be silently omitted if required scopes (e.g., `users:read.email`) are not granted or workspace privacy policies restrict access. |
| `SLACK_REVOKE_FILE_PUBLIC_SHARING` | Revoke a file's public url | Revokes a Slack file's public URL, making it private; this is a no-op if not already public and is irreversible. |
| `SLACK_RTM_CONNECT` | Start RTM session | Starts a Real Time Messaging session and returns a WebSocket URL. Use when you need to establish a persistent RTM connection to receive real-time events from Slack. |
| `SLACK_SCHEDULE_MESSAGE` | Schedule message | Schedules a message to a Slack channel, DM, or private group for a future time (`post_at`), requiring `text`, `blocks`, or `attachments` for content; scheduling is limited to 120 days in advance. |
| `SLACK_SCIM_GET_CONFIG` | Get SCIM service provider configuration | Tool to retrieve SCIM service provider configuration from Slack. Use when you need to discover Slack's SCIM API capabilities including supported authentication schemes, bulk operations, filtering, and other service provider features. |
| `SLACK_SEARCH_ALL` | Search all content | Tool to search all messages and files. Use when you need unified content search across channels and files in one call. Results are scoped to content visible to the authenticated token; missing hits in private or restricted channels reflect permission/membership gaps. Response separates messages and files into distinct sections — explicitly read the files section for document results. Results are index-based and may lag several minutes behind real-time; use SLACK_FETCH_CONVERSATION_HISTORY for near-real-time per-channel coverage. Paginated searches exceeding ~1 req/sec may return HTTP 429 too_many_requests; honor the Retry-After header and resume from the last page. |
| `SLACK_SEARCH_MESSAGES` | Search messages | Workspace‑wide Slack message search with date ranges and filters. Use `query` modifiers (e.g., in:#channel, from:@user, before/after:YYYY-MM-DD), sorting (score/timestamp), and pagination. |
| `SLACK_SEND_EPHEMERAL_MESSAGE` | Send ephemeral message | Sends an ephemeral message visible only to the specified `user` in a channel; other channel members cannot see it. Both the bot and the target user must be members of the specified channel. |
| `SLACK_SEND_ME_MESSAGE` | Share a me message in a channel | Sends a 'me message' (e.g., '/me is typing') to a Slack channel, where it's displayed as a third-person user action; messages are plain text and the channel must exist and be accessible. |
| `SLACK_SEND_MESSAGE` | Send message | Posts a message to a Slack channel, DM, or private group; requires at least one content field (`markdown_text`, `text`, `blocks`, or `attachments`) — omitting all causes a `no_text` error. Fails with `not_in_channel`, `channel_not_found`, or `channel_is_archived` if the bot lacks access. Body limit ~4000 characters. Rate-limited at ~1 req/sec (HTTP 429, honor `Retry-After`). Not idempotent — duplicate calls post duplicate messages. |
| `SLACK_SET_ADMIN_USER` | Set admin user | Promotes an existing workspace member (guest, regular user, or owner) to admin status. Use when you need to grant admin privileges to a user. |
| `SLACK_SET_CONVERSATION_PREFS` | Set conversation preferences | Sets the posting permissions for a public or private channel in Slack. Use this to control who can post messages, start threads, use @channel/@here mentions, and initiate huddles in a specific channel. |
| `SLACK_SET_CONVERSATION_PURPOSE` | Set a conversation's purpose | Sets the purpose (a short description of its topic/goal, displayed in the header) for a Slack conversation; the calling user must be a member. |
| `SLACK_SET_DEFAULT_CHANNELS` | Set default channels | Tool to set the default channels of a workspace. Use when you need to configure which channels new members automatically join. |
| `SLACK_SET_DND_DURATION` | Set DND duration | Turns on Do Not Disturb mode for the current user, or changes its duration. |
| `SLACK_SET_PROFILE_PHOTO` | Set profile photo | This method allows the user to set their profile image. |
| `SLACK_SET_READ_CURSOR_IN_A_CONVERSATION` | Set conversation read cursor | Marks a message, specified by its timestamp (`ts`), as the most recently read for the authenticated user in the given `channel`, provided the user is a member of the channel and the message exists within it. |
| `SLACK_SET_THE_TOPIC_OF_A_CONVERSATION` | Set conversation topic | Sets or updates the topic for a specified Slack conversation. |
| `SLACK_SET_USER_PRESENCE` | Set user presence | Manually sets a user's Slack presence, overriding automatic detection; this setting persists across connections but can be overridden by user actions or Slack's auto-away (e.g., after 10 mins of inactivity). |
| `SLACK_SET_USER_PROFILE` | Set Slack user profile information | Updates a Slack user's profile, setting either individual fields or multiple fields via a JSON object. |
| `SLACK_SET_WORKSPACE_DESCRIPTION` | Set workspace description | Set the description of a given workspace. Use when you need to update or change the description text displayed for a Slack workspace. |
| `SLACK_SET_WORKSPACE_ICON` | Set workspace icon | Sets the icon of a workspace. Use when you need to update or change the workspace icon image. The image must be publicly accessible and in a supported format (GIF, PNG, JPG, JPEG, HEIC, or HEIF). |
| `SLACK_SET_WORKSPACE_NAME` | Set workspace name | Set the name of a given Slack workspace. Use when you need to update the display name for a workspace in an Enterprise Grid organization. |
| `SLACK_SET_WORKSPACE_OWNER` | Set workspace owner | Set an existing guest, regular user, or admin user to be a workspace owner. Use when you need to promote a workspace member to owner status. Requires an Enterprise Grid workspace. |
| `SLACK_SET_WORKSPACES_FOR_CHANNEL` | Set workspaces for channel | Set the workspaces in an Enterprise grid org that connect to a channel. Use when you need to share a public or private channel with specific workspaces in an Enterprise Grid organization. |
| `SLACK_SHARE_REMOTE_FILE` | Share a remote file in channels | Shares a remote file, which must already be registered with Slack, into specified Slack channels or direct message conversations. |
| `SLACK_START_CALL` | Start call | Registers a new call in Slack using `calls.add` for third-party call integration; `created_by` is required if not using a user-specific token. |
| `SLACK_TEST_AUTH` | Test authentication | Checks authentication and tells you who you are. Use to verify Slack API authentication is functional and to retrieve identity information about the authenticated user or bot. |
| `SLACK_UNARCHIVE_CHANNEL` | Unarchive channel | Reverses conversation archival. |
| `SLACK_UNPIN_ITEM` | Unpin message from channel | Unpins a message, identified by its timestamp, from a specified channel if the message is currently pinned there; this operation is destructive. |
| `SLACK_UPDATE_CALL_INFO` | Update call information | Updates the title, join URL, or desktop app join URL for an existing Slack call identified by its ID. |
| `SLACK_UPDATE_REMOTE_FILE` | Update an existing remote file | Updates metadata or content details for an existing remote file in Slack; this action cannot upload new files or change the fundamental file type. |
| `SLACK_UPDATES_A_SLACK_MESSAGE` | Update a Slack message | Updates a Slack message, identified by `channel` ID and `ts` timestamp, by modifying its `text`, `attachments`, or `blocks`; provide at least one content field, noting `attachments`/`blocks` are replaced if included (`[]` clears them). |
| `SLACK_UPDATE_USER_GROUP` | Update Slack user group | Updates an existing Slack User Group, which must be specified by an existing `usergroup` ID, with new optional details such as its name, description, handle, or default channels. |
| `SLACK_UPDATE_USER_GROUP_MEMBERS` | Update user group members | Replaces all members of an existing Slack User Group with a new list of valid user IDs. |
| `SLACK_UPLOAD_OR_CREATE_A_FILE_IN_SLACK` | Upload or create a file in Slack | Upload files, images, screenshots, documents, or any media to Slack channels or threads. Supports all file types including images (PNG, JPG, JPEG, GIF), documents (PDF, DOCX, TXT), code files, and more. Can share files publicly in channels or as thread replies with optional comments. Large files may fail with `upload_too_large`; use SLACK_ADD_A_REMOTE_FILE_FROM_A_SERVICE for large uploads. If the API returns `ok=false` with `method_deprecated`, fall back to SLACK_ADD_A_REMOTE_FILE_FROM_A_SERVICE or SLACK_SEND_MESSAGE with a URL. |

## Supported Triggers

| Trigger slug | Name | Description |
|---|---|---|
| `SLACK_CHANNEL_CREATED` | New Channel Created Trigger | Triggered when a new channel is created in Slack. |
| `SLACK_CHANNEL_MESSAGE_RECEIVED` | Channel Message Received | Triggered when a message is posted in a Slack channel (public, private, or multi-party IM). Does NOT match direct messages. |
| `SLACK_DIRECT_MESSAGE_RECEIVED` | Direct Message Received | Triggered when a new direct message (DM) is sent to a user in Slack. Catches all DMs across all DM channels. |
| `SLACK_MESSAGE_REACTION_ADDED` | Message Reaction Added | Triggered when a reaction is added to a message in Slack. Supports optional filtering by channel and emoji name. |
| `SLACK_REACTION_ADDED` | Reaction Added Trigger | DEPRECATED: use `SLACK_MESSAGE_REACTION_ADDED` instead. Triggered when a reaction is added to a message in Slack. |
| `SLACK_REACTION_REMOVED` | Reaction Removed Trigger | DEPRECATED. Triggered when a reaction is removed from a message. |
| `SLACK_RECEIVE_BOT_MESSAGE` | New Bot Message Received Trigger | DEPRECATED: use `SLACK_CHANNEL_MESSAGE_RECEIVED` with `is_bot_message=true` instead. Triggered when a new bot message is posted to a Slack channel. |
| `SLACK_RECEIVE_MESSAGE` | New Message Received Trigger | DEPRECATED: use `SLACK_CHANNEL_MESSAGE_RECEIVED` instead. Triggered when a new message is posted to a Slack channel. |

## Creating MCP Server - Stand-alone vs Composio SDK

The Slack MCP server is an implementation of the Model Context Protocol that connects Claude Code (and other AI assistants like Claude and Cursor) directly to your Slack account. It provides structured and secure access so Claude can perform Slack operations on your behalf.
With Composio's managed implementation, you don't have to create your own developer app. For production, if you're building an end product, we recommend using your own credentials. The managed server helps you prototype fast and go from 0-1 faster.

## Step-by-step Guide

### 1. Prerequisites

Before starting, make sure you have:
- Claude Pro, Max, or API billing enabled Anthropic account
- Composio API Key
- A Slack account
- Basic knowledge of Python or TypeScript

### 1. Install Claude Code

To install Claude Code, use one of the following methods based on your operating system:
```bash
# macOS, Linux, WSL
curl -fsSL https://claude.ai/install.sh | bash

# Windows PowerShell
irm https://claude.ai/install.ps1 | iex

# Windows CMD
curl -fsSL https://claude.ai/install.cmd -o install.cmd && install.cmd && del install.cmd
```

### 2. Set up Claude Code

Open a terminal, go to your project folder, and start Claude Code:
- Claude Code will open in your terminal
- Follow the prompts to sign in with your Anthropic account
- Complete the authentication flow
- Once authenticated, you can start using Claude Code
```bash
cd your-project-folder
claude
```

### 3. Set up environment variables

Create a .env file in your project root with the following variables:
- COMPOSIO_API_KEY authenticates with Composio (get it from [Composio dashboard](https://dashboard.composio.dev/login?utm_source=toolkits&utm_medium=framework_template&utm_campaign=claude-code&utm_content=api_key&next=%2F~%2Forg%2Fconnect%2Fclients%2Fclaude-code))
- USER_ID identifies the user for session management (use any unique identifier)
```bash
COMPOSIO_API_KEY=your_composio_api_key_here
USER_ID=your_user_id_here
```

### 4. Install Composio library

No description provided.
```python
pip install composio-core python-dotenv
```

```typescript
npm install @composio/core dotenv
```

### 5. Generate Composio MCP URL

No description provided.
```python
import os
from composio import Composio
from dotenv import load_dotenv

load_dotenv()

COMPOSIO_API_KEY = os.getenv("COMPOSIO_API_KEY")
USER_ID = os.getenv("USER_ID")

composio_client = Composio(api_key=COMPOSIO_API_KEY)

composio_session = composio_client.create(
    user_id=USER_ID,
    toolkits=["slack"],
)

COMPOSIO_MCP_URL = composio_session.mcp.url

print(f"MCP URL: {COMPOSIO_MCP_URL}")
print(f"\nUse this command to add to Claude Code:")
print(f'claude mcp add --transport http slack-composio "{COMPOSIO_MCP_URL}" --headers "X-API-Key:{COMPOSIO_API_KEY}"')
```

```typescript
import 'dotenv/config';
import { Composio } from '@composio/core';

const { COMPOSIO_API_KEY, USER_ID } = process.env;

if (!COMPOSIO_API_KEY || !USER_ID) {
  throw new Error('COMPOSIO_API_KEY and USER_ID required in .env');
}

const composioClient = new Composio({ apiKey: COMPOSIO_API_KEY });

const composioSession = await composioClient.create(USER_ID, {
  toolkits: ['slack'],
});

const composioMcpUrl = composioSession?.mcp.url;

console.log(`MCP URL: ${composioMcpUrl}`);
console.log(`\nUse this command to add to Claude Code:`);
console.log(`claude mcp add --transport http slack-composio "${composioMcpUrl}" --headers "X-API-Key:${COMPOSIO_API_KEY}"`);
```

### 6. Run the script and copy the MCP URL

No description provided.
```python
python generate_mcp_url.py
```

```typescript
node --loader ts-node/esm generate_mcp_url.ts
# or if using tsx
tsx generate_mcp_url.ts
```

### 7. Add Slack MCP to Claude Code

In your terminal, add the MCP server using the command from the previous step. The command format is:
- claude mcp add registers a new MCP server with Claude Code
- --transport http specifies that this is an HTTP-based MCP server
- The server name (slack-composio) is how you'll reference it
- The URL points to your Composio Tool Router session
- --headers includes your Composio API key for authentication
After running the command, close the current Claude Code session and start a new one for the changes to take effect.
```bash
claude mcp add --transport http slack-composio "YOUR_MCP_URL_HERE" --headers "X-API-Key:YOUR_COMPOSIO_API_KEY"

# Then restart Claude Code
exit
claude
```

### 8. Verify the installation

Check that your Slack MCP server is properly configured.
- This command lists all MCP servers registered with Claude Code
- You should see your slack-composio entry in the list
- This confirms that Claude Code can now access Slack tools
If everything is wired up, you should see your slack-composio entry listed:
```bash
claude mcp list
```

### 9. Authenticate Slack

The first time you try to use Slack tools, you'll be prompted to authenticate.
- Claude Code will detect that you need to authenticate with Slack
- It will show you an authentication link
- Open the link in your browser (or copy/paste it)
- Complete the Slack authorization flow
- Return to the terminal and start using Slack through Claude Code
Once authenticated, you can ask Claude Code to perform Slack operations in natural language. For example:
- "Send reminder to marketing channel at 10am"
- "Add reaction to latest team message"
- "Archive inactive project channel after review"

## Complete Code

```python
import os
from composio import Composio
from dotenv import load_dotenv

load_dotenv()

COMPOSIO_API_KEY = os.getenv("COMPOSIO_API_KEY")
USER_ID = os.getenv("USER_ID")

composio_client = Composio(api_key=COMPOSIO_API_KEY)

composio_session = composio_client.create(
    user_id=USER_ID,
    toolkits=["slack"],
)

COMPOSIO_MCP_URL = composio_session.mcp.url

print(f"MCP URL: {COMPOSIO_MCP_URL}")
print(f"\nUse this command to add to Claude Code:")
print(f'claude mcp add --transport http slack-composio "{COMPOSIO_MCP_URL}" --headers "X-API-Key:{COMPOSIO_API_KEY}"')
```

```typescript
import 'dotenv/config';
import { Composio } from '@composio/core';

const { COMPOSIO_API_KEY, USER_ID } = process.env;

if (!COMPOSIO_API_KEY || !USER_ID) {
  throw new Error('COMPOSIO_API_KEY and USER_ID required in .env');
}

const composioClient = new Composio({ apiKey: COMPOSIO_API_KEY });

const composioSession = await composioClient.create(USER_ID, {
  toolkits: ['slack'],
});

const composioMcpUrl = composioSession?.mcp.url;

console.log(`MCP URL: ${composioMcpUrl}`);
console.log(`\nUse this command to add to Claude Code:`);
console.log(`claude mcp add --transport http slack-composio "${composioMcpUrl}" --headers "X-API-Key:${COMPOSIO_API_KEY}"`);
```

## Conclusion

You've successfully integrated Slack with Claude Code using Composio's MCP server. Now you can interact with Slack directly from your terminal using natural language commands.
Key features of this setup:
- Terminal-native experience without switching contexts
- Natural language commands for Slack operations
- Secure authentication through Composio's managed MCP
- Tool Router for dynamic tool discovery and execution
Next steps:
- Try asking Claude Code to perform various Slack operations
- Add more toolkits to your Tool Router session for multi-app workflows
- Integrate this setup into your development workflow for increased productivity
You can extend this by adding more toolkits, implementing custom workflows, or building automation scripts that leverage Claude Code's capabilities.

## How to build Slack MCP Agent with another framework

- [ChatGPT](https://composio.dev/toolkits/slack/framework/chatgpt)
- [OpenAI Agents SDK](https://composio.dev/toolkits/slack/framework/open-ai-agents-sdk)
- [Claude Agent SDK](https://composio.dev/toolkits/slack/framework/claude-agents-sdk)
- [Claude Cowork](https://composio.dev/toolkits/slack/framework/claude-cowork)
- [Codex](https://composio.dev/toolkits/slack/framework/codex)
- [Cursor](https://composio.dev/toolkits/slack/framework/cursor)
- [VS Code](https://composio.dev/toolkits/slack/framework/vscode)
- [OpenCode](https://composio.dev/toolkits/slack/framework/opencode)
- [OpenClaw](https://composio.dev/toolkits/slack/framework/openclaw)
- [Hermes](https://composio.dev/toolkits/slack/framework/hermes-agent)
- [CLI](https://composio.dev/toolkits/slack/framework/cli)
- [Google ADK](https://composio.dev/toolkits/slack/framework/google-adk)
- [LangChain](https://composio.dev/toolkits/slack/framework/langchain)
- [Vercel AI SDK](https://composio.dev/toolkits/slack/framework/ai-sdk)
- [Mastra AI](https://composio.dev/toolkits/slack/framework/mastra-ai)
- [LlamaIndex](https://composio.dev/toolkits/slack/framework/llama-index)
- [CrewAI](https://composio.dev/toolkits/slack/framework/crew-ai)

## Related Toolkits

- [Gmail](https://composio.dev/toolkits/gmail) - Gmail is Google's email service with powerful spam protection, search, and G Suite integration. It keeps your inbox organized and makes communication fast and reliable.
- [Outlook](https://composio.dev/toolkits/outlook) - Outlook is Microsoft's email and calendaring platform for unified communications and scheduling. It helps users stay organized with powerful email, contacts, and calendar management.
- [Gong](https://composio.dev/toolkits/gong) - Gong is a platform for video meetings, call recording, and team collaboration. It helps teams capture conversations, analyze calls, and turn insights into action.
- [Microsoft teams](https://composio.dev/toolkits/microsoft_teams) - Microsoft Teams is a collaboration platform that combines chat, meetings, and file sharing within Microsoft 365. It keeps distributed teams connected and productive through seamless virtual communication.
- [Slackbot](https://composio.dev/toolkits/slackbot) - Slackbot is a conversational automation tool for Slack that handles reminders, notifications, and automated responses. It boosts team productivity by streamlining onboarding, answering FAQs, and managing timely alerts—all right inside Slack.
- [2chat](https://composio.dev/toolkits/_2chat) - 2chat is an API platform for WhatsApp and multichannel text messaging. It streamlines chat automation, group management, and real-time messaging for developers.
- [Agent mail](https://composio.dev/toolkits/agent_mail) - Agent mail provides AI agents with dedicated email inboxes for sending, receiving, and managing emails. It empowers agents to communicate autonomously with people, services, and other agents—no human intervention needed.
- [Basecamp](https://composio.dev/toolkits/basecamp) - Basecamp is a project management and team collaboration tool by 37signals. It helps teams organize tasks, share files, and communicate efficiently in one place.
- [Chatwork](https://composio.dev/toolkits/chatwork) - Chatwork is a team communication platform with group chats, file sharing, and task management. It helps businesses boost collaboration and streamline productivity.
- [Clickmeeting](https://composio.dev/toolkits/clickmeeting) - ClickMeeting is a cloud-based platform for running online meetings and webinars. It helps businesses and individuals host, manage, and engage virtual audiences with ease.
- [Confluence](https://composio.dev/toolkits/confluence) - Confluence is Atlassian's team collaboration and knowledge management platform. It helps your team organize, share, and update documents and project content in one secure workspace.
- [Dailybot](https://composio.dev/toolkits/dailybot) - DailyBot streamlines team collaboration with chat-based standups, reminders, and polls. It keeps work flowing smoothly in your favorite messaging platforms.
- [Dialmycalls](https://composio.dev/toolkits/dialmycalls) - Dialmycalls is a mass notification service for sending voice and text messages to contacts. It helps teams and organizations quickly broadcast urgent alerts and updates.
- [Dialpad](https://composio.dev/toolkits/dialpad) - Dialpad is a cloud-based business phone and contact center system for teams. It unifies voice, video, messaging, and meetings across your devices.
- [Discord](https://composio.dev/toolkits/discord) - Discord is a real-time messaging and VoIP platform for communities and teams. It lets users chat, share media, and collaborate across public and private channels.
- [Discordbot](https://composio.dev/toolkits/discordbot) - Discordbot is an automation tool for Discord servers that handles moderation, messaging, and user engagement. It helps communities run smoothly by automating routine and complex tasks.
- [Echtpost](https://composio.dev/toolkits/echtpost) - Echtpost is a secure digital communication platform for encrypted document and message exchange. It ensures confidential data stays private and protected during transmission.
- [Egnyte](https://composio.dev/toolkits/egnyte) - Egnyte is a cloud-based platform for secure file sharing, storage, and governance. It helps teams collaborate efficiently while maintaining data compliance and security.
- [Google Meet](https://composio.dev/toolkits/googlemeet) - Google Meet is a secure video conferencing platform for virtual meetings, chat, and screen sharing. It helps teams connect, collaborate, and communicate seamlessly from anywhere.
- [Heartbeat](https://composio.dev/toolkits/heartbeat) - Heartbeat is a plug-and-play platform for building and managing online communities. It helps you organize users, channels, events, and discussions in one place.

## Frequently Asked Questions

### What are the differences in Tool Router MCP and Slack MCP?

With a standalone Slack MCP server, the agents and LLMs can only access a fixed set of Slack tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Slack and many other apps based on the task at hand, all through a single MCP endpoint.

### Can I use Tool Router MCP with Claude Code?

Yes, you can. Claude Code fully supports MCP integration. You get structured tool calling, message history handling, and model orchestration while Tool Router takes care of discovering and serving the right Slack tools.

### Can I manage the permissions and scopes for Slack while using Tool Router?

Yes, absolutely. You can configure which Slack scopes and actions are allowed when connecting your account to Composio. You can also bring your own OAuth credentials or API configuration so you keep full control over what the agent can do.

### How safe is my data with Composio Tool Router?

All sensitive data such as tokens, keys, and configuration is fully encrypted at rest and in transit. Composio is SOC 2 Type 2 compliant and follows strict security practices so your Slack data and credentials are handled as safely as possible.

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[See all toolkits](https://composio.dev/toolkits) · [Composio docs](https://docs.composio.dev/llms.txt)