How to integrate Chatwork MCP with Atomic Agent

Connect Atomic Agent to Chatwork MCP. List all unread messages across rooms, upload meeting notes file to project room, and more using natural language, with authentication handled for you.

Chatwork logoChatwork
Api Key

Chatwork is a team communication platform with group chats, file sharing, and task management. It helps businesses boost collaboration and streamline productivity.

30 Tools

Introduction

Atomic Agent is an open-source AI agent that runs on your machine and supports local models through llama.cpp. Connect it to 1,500+ apps through Composio, including Chatwork.

This guide uses Atomic Agent's built-in Composio integration. You need Atomic Agent v0.5.6 or later, your own Composio API key, and a Chatwork account. See the Atomic Agent documentation for installation instructions.

Also integrate Chatwork with

How Atomic Agent connects to Chatwork

Atomic Agent connects to Composio's Tool Router over Streamable HTTP MCP. It discovers the tools needed for your request, and Composio handles account authentication.

Execution and account-connection tools follow Atomic Agent's configured approval policy. Review any approval prompt before allowing an action on your connected account.

Connect Chatwork to Atomic Agent

  1. Sign up or sign in to the Composio dashboard. Copy your API key.
  2. In Atomic Agent, open the Integrations tab and select Composio. Select API key, press e, paste the key, and press Enter. The tools become available immediately, without a restart.
  3. Ask Atomic Agent to do something in Chatwork. It searches Composio for the right tool.
  4. On first use, open the sign-in link returned in the chat. Connect your Chatwork account, then return to Atomic Agent to continue.

Headless setup

Add the following line to ~/.atomic-agent/.env, replacing YOUR_COMPOSIO_API_KEY with your key. Start Atomic Agent after saving the file.

bash
COMPOSIO_API_KEY=YOUR_COMPOSIO_API_KEY

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

The Chatwork MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Chatwork account. It provides structured and secure access to your chats, contacts, files, and rooms, so your agent can perform actions like sending messages, managing tasks, retrieving files, and organizing team communications on your behalf.

  • Room and member management: Easily fetch all chat rooms, list members in any room, and keep your workspace organized by letting your agent handle the heavy lifting.
  • Smart message retrieval and deletion: Have your agent pull recent messages from any chat, search for important info, or even delete specific messages when needed.
  • File sharing and retrieval: Seamlessly upload files to any Chatwork room or retrieve details and download links for files already shared, making document collaboration a breeze.
  • Contact and status insights: Instantly get a list of all your Chatwork contacts or check your current unread messages and task status without switching tabs.
  • Automated task and notification workflows: Let your agent monitor unread messages, mentions, and tasks, helping you stay on top of communication and never miss an important update.

Use Chatwork from Atomic Agent

With your account connected, ask Atomic Agent to work with Chatwork in natural language. You can connect more apps through the same Composio integration as you need them.

Visit the Atomic Agent website or inspect the Atomic Agent source code.

Troubleshooting

Why is my API key rejected?

Copy the key directly from the Composio dashboard. Atomic Agent requires ASCII characters because it sends the key in an HTTP header. Remove any extra characters introduced when copying.

Why are Composio tools unavailable after saving a key?

Check that you use Atomic Agent v0.5.6 or later and that Composio is enabled in your configuration. A "composio": { "enabled": false } setting disables the integration while keeping the saved key on disk.

Does Composio have a free plan?

The Hobby plan includes 100,000 tool calls per month. Composio-managed OAuth apps have a lower included allowance. See Composio pricing for the current limits that apply to your connection.

TOOLS

Supported Tools

Every Chatwork action and event your agent gets out of the box.

Create Chatwork Room

Tool to create a new group chat room in Chatwork.

Create Room Invitation Link

Tool to create an invitation link for a Chatwork room.

Create Task in Chatwork Room

Tool to create a new task in a Chatwork room.

Delete Message

This tool allows you to delete a specific message from a Chatwork room by calling the DELETE endpoint at https://api.

Delete or Leave Chatwork Room

Tool to leave or delete a Chatwork room.

Delete Room Link

Delete the invitation link for a Chatwork room.

Get Chatwork Contacts

This tool retrieves a list of all contacts from Chatwork.

Get Chatwork File Information

Tool to get information about a specific file in a chat room.

Get Incoming Contact Requests

Tool to retrieve pending contact approval requests received by the authenticated user.

Get My Chatwork Profile

Tool to retrieve the authenticated user's profile information including account details, organization, contact information, and avatar URL.

Get Message

Tool to retrieve information about a specific message in a Chatwork room.

Get My Chatwork Status

This tool retrieves the current status of the authenticated user, including unread message counts and task status.

Get My Chatwork Tasks

Tool to retrieve the authenticated user's task list from Chatwork (up to 100 items).

Get Chatwork Room

Retrieves detailed information about a specific Chatwork room using the API endpoint GET /rooms/{room_id}.

Get Room Files

Tool to get list of files in a chat room (up to 100 files).

Get Room Invitation Link

Retrieves the invitation link for a specified Chatwork room using the API endpoint GET /rooms/{room_id}/link.

Get Room Members

Retrieves a complete list of all members in a specified Chatwork room using the API endpoint GET /rooms/{room_id}/members.

Get Room Messages V2

Tool to retrieve messages from a Chatwork room (up to 100 messages).

Get Chatwork Rooms

Tool to retrieve a list of all chat rooms the authenticated user belongs to.

Get Room Tasks

Retrieves a list of tasks from a Chatwork room.

Get Task

Retrieves detailed information about a specific task in a Chatwork room using the API endpoint GET /rooms/{room_id}/tasks/{task_id}.

Mark Messages as Read

Tool to mark messages as read in a Chatwork room.

Mark Messages as Unread

Tool to mark messages as unread in a Chatwork room.

Post Message

Tool to post a new message to a Chatwork room.

Update Message

Tool to update an existing message in a Chatwork room.

Update Chatwork Room

Tool to update chat room information (name, icon, description).

Update Room Invitation Link

Tool to update the invitation link settings for a Chatwork room.

Update Room Members

Updates the complete member list of a Chatwork room with bulk assignment of member roles (admin, member, readonly).

Update Task Status

Tool to update the completion status of a task in a Chatwork room.

Upload File to Chatwork Room

This tool allows users to upload files to a specific Chatwork room.

FAQ

Frequently asked questions

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

Yes, you can. Atomic Agent 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 Chatwork tools.

Yes, absolutely. You can configure which Chatwork 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.

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 Chatwork data and credentials are handled as safely as possible.

Start with Chatwork.It takes 30 seconds.

Managed auth, hosted MCP servers, and every Chatwork tool your agent needs.Free to start.

Start building