Add call participantsRegisters new participants added to a Slack call.
Add reaction to messageAdds a specified emoji reaction to an existing message in a Slack channel, identified by its timestamp; does not remove or retrieve reactions.
Add a remote fileAdds a reference to an external file (e.
Archive a Slack conversationArchives 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.
Close conversation channelCloses 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.
Create a reminderCreates a Slack reminder with specified text and time; time accepts Unix timestamps, seconds from now, or natural language (e.
Create Slack CanvasCreates a new Slack Canvas with the specified title and optional content.
Create channelInitiates a public or private channel-based conversation in a Slack workspace.
Create a Slack user groupCreates a new User Group (often referred to as a subteam) in a Slack workspace.
Customize URL unfurlCustomizes URL previews (unfurling) in a specific Slack message using a URL-encoded JSON in `unfurls` to define custom content or remove existing previews.
Delete Slack CanvasDeletes a Slack Canvas permanently and irreversibly.
Delete a file by IDPermanently 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.
Delete file commentDeletes a specific comment from a file in Slack; this action is irreversible.
Delete a Slack reminderDeletes an existing Slack reminder, typically when it is no longer relevant or a task is completed; this operation is irreversible.
Delete a message from a chatDeletes 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.
Delete scheduled chat messageDeletes a pending, unsent scheduled message from the specified Slack channel, identified by its `scheduled_message_id`.
Disable a Slack user groupDisables 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.
Download Slack fileTool to download Slack file content and convert it to a publicly accessible URL.
Edit Slack CanvasEdits a Slack Canvas with granular control over content placement.
Share file public urlEnables public sharing for an existing Slack file by generating a publicly accessible URL; this action does not create new files.
Enable a user groupEnables 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.
End a callEnds an ongoing Slack call, identified by its ID (obtained from `calls.
Fetch conversation historyFetches 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.
Fetch item reactionsFetches reactions for a Slack message, file, or file comment.
Retrieve conversation repliesRetrieves replies to a specific parent message in a Slack conversation, using the channel ID and the parent message's timestamp (`ts`).
Fetch team infoFetches comprehensive metadata about the current Slack team, or a specified team if the provided ID is accessible.
Find channelsFind channels in a Slack workspace by any criteria - name, topic, purpose, or description.
Lookup users by emailRetrieves the Slack user object for an active user by their registered email address; requires the users:read.
Find usersFind users in a Slack workspace by any criteria - email, name, display name, or other text.
Fetch bot user informationFetches information for a specified, existing Slack bot user; will not work for regular user accounts or other integration types.
Retrieve call informationRetrieves a point-in-time snapshot of a specific Slack call's information.
Get reminder informationRetrieves detailed information for an existing Slack reminder specified by its ID; this is a read-only operation.
Get remote fileRetrieve information about a remote file added to Slack via the files.
Retrieve team profile detailsRetrieves all profile field definitions for a Slack team, optionally filtered by visibility, to understand the team's profile structure.
Get team DND statusRetrieves a user's current Do Not Disturb status.
Retrieve user presenceRetrieves a Slack user's current real-time presence (e.
Invite users to a Slack channelInvites users to an existing Slack channel using their valid Slack User IDs.
Join conversation by channel idJoins an existing Slack conversation (public channel, private channel, or multi-person direct message) by its ID, if the authenticated user has permission.
Leave conversation channelLeaves 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.
List all channelsLists conversations available to the user with various filters and search options.
List all usersRetrieves a paginated list of all users with profile details, status, and team memberships in a Slack workspace; data may not be real-time.
List conversationsList 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.
List team custom emojisRetrieves all custom emojis for the Slack workspace (image URLs or aliases), not standard Unicode emojis; does not include usage statistics or creation dates.
List Slack filesLists files and their metadata within a Slack workspace, filterable by user, channel, timestamp, or type; returns metadata only, not file content.
List pinned items in a channelRetrieves all messages and files pinned to a specified channel; the caller must have access to this channel.
List remindersLists all reminders with their details for the authenticated Slack user; returns an empty array if no reminders exist (valid state, not an error).
List remote filesRetrieve information about a team's remote files.
List all users in a user groupRetrieves a list of all user IDs within a specified Slack user group, with an option to include users from disabled groups.
List user groupsLists user groups in a Slack workspace, including user-created and default groups; results for large workspaces may be paginated.
List user reactionsLists 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.
Lookup Canvas SectionsLooks up section IDs in a Slack Canvas for use with targeted edit operations.
Open DMOpens or resumes a Slack direct message (DM) or multi-person direct message (MPIM) by providing either user IDs or an existing channel ID.
Pin an item to a channelPins a message to a specified Slack channel; the message must not already be pinned.
Remove call participantsRegisters participants removed from a Slack call.
Remove reaction from itemRemoves an emoji reaction from a message, file, or file comment in Slack.
Remove remote fileRemoves 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.
Remove user from conversationRemoves a specified user from a Slack conversation (channel); the caller must have permissions to remove users and cannot remove themselves using this action.
Rename a conversationRenames a Slack channel, automatically adjusting the new name to meet naming conventions (e.
Retrieve conversation informationRetrieves metadata for a Slack conversation by ID (e.
Get conversation membersRetrieves a paginated list of active member IDs (not names, emails, or presence) for a specified Slack public channel, private channel, DM, or MPIM.
Retrieve user DND statusRetrieves 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.
Retrieve detailed file informationRetrieves detailed metadata and paginated comments for a specific Slack file ID; does not download file content.
Retrieve detailed user informationRetrieves comprehensive information for a valid Slack user ID, excluding message history and channel memberships.
Retrieve user profile informationRetrieves profile information for a specified Slack user (defaults to the authenticated user if `user` ID is omitted); a provided `user` ID must be valid.
Revoke a file's public urlRevokes a Slack file's public URL, making it private; this is a no-op if not already public and is irreversible.
Schedule messageSchedules 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.
Search all contentTool to search all messages and files.
Search messagesWorkspace‑wide Slack message search with date ranges and filters.
Send ephemeral messageSends an ephemeral message visible only to the specified `user` in a channel; other channel members cannot see it.
Share a me message in a channelSends a 'me message' (e.
Send messagePosts 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.
Set a conversation's purposeSets the purpose (a short description of its topic/goal, displayed in the header) for a Slack conversation; the calling user must be a member.
Set conversation read cursorMarks 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.
Set conversation topicSets or updates the topic for a specified Slack conversation.
Set user presenceManually 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.
Share a remote file in channelsShares a remote file, which must already be registered with Slack, into specified Slack channels or direct message conversations.
Start callRegisters a new call in Slack using `calls.
Unarchive channelReverses conversation archival.
Unpin message from channelUnpins a message, identified by its timestamp, from a specified channel if the message is currently pinned there; this operation is destructive.
Update call informationUpdates the title, join URL, or desktop app join URL for an existing Slack call identified by its ID.
Update an existing remote fileUpdates metadata or content details for an existing remote file in Slack; this action cannot upload new files or change the fundamental file type.
Update a Slack messageUpdates 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).
Update Slack user groupUpdates 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.
Update user group membersReplaces all members of an existing Slack User Group with a new list of valid user IDs.
Upload or create a file in SlackUpload files, images, screenshots, documents, or any media to Slack channels or threads.
