Chatwork MCP server for AI agents and assistants

Securely connect your AI agents and chatbots (Claude, ChatGPT, Cursor, etc) with Chatwork MCP or direct API to send messages, manage group chats, share files, and automate task creation through natural language.

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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

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Type what you want done — sign in and watch it run live in the Tool Router playground.

TOOL ROUTER PLAYGROUND
Chatwork
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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.

SETUP GUIDE

Connect Chatwork MCP Tool with your Agent

1

Install Composio

typescript
npm install @composio/core ai @ai-sdk/mcp @ai-sdk/openai
Install the Composio SDK and your agent framework
2

Create a session with MCP enabled

typescript
import { Composio } from "@composio/core";

const composio = new Composio();
const { mcp } = await composio.create("your-user-id", {
  toolkits: ["chatwork"],
  mcp: true,
});
Create a session scoped to Chatwork and read its MCP URL and headers
3

Connect your agent to the MCP server

typescript
import { createMCPClient } from "@ai-sdk/mcp";
import { openai } from "@ai-sdk/openai";
import { generateText, stepCountIs } from "ai";

const client = await createMCPClient({
  transport: { type: "http", url: mcp.url, headers: mcp.headers },
});

const { text } = await generateText({
  model: openai("gpt-5.6-sol"),
  tools: await client.tools(),
  prompt: "List all unread messages in #marketing room",
  stopWhen: stepCountIs(10),
});

console.log(text);
await client.close();
Pass the session's MCP URL and headers to your agent and run a Chatwork request
SETUP GUIDE

Connect Chatwork API Tool with your Agent

1

Install Composio

typescript
npm install @composio/core @composio/openai openai
Install the Composio SDK, the OpenAI provider, and the OpenAI SDK
2

Create a Composio session

typescript
import OpenAI from "openai";
import { Composio } from "@composio/core";
import { OpenAIResponsesProvider } from "@composio/openai";

const composio = new Composio({ provider: new OpenAIResponsesProvider() });
const client = new OpenAI();

const session = await composio.create("your-user-id", { toolkits: ["chatwork"] });
const tools = await session.tools();
Initialize Composio with the OpenAI Responses provider and create a session scoped to Chatwork
3

Run Chatwork tools with your agent

typescript
let response = await client.responses.create({
  model: "gpt-5.6-sol",
  tools,
  input: [{ role: "user", content: "List all unread messages in #marketing room" }],
});

while (response.output.some((o) => o.type === "function_call")) {
  const outputs = await composio.provider.handleToolCalls(session, response.output);
  response = await client.responses.create({
    model: "gpt-5.6-sol",
    tools,
    previous_response_id: response.id,
    input: outputs,
  });
}

console.log(response.output_text);
Send a request, execute the Chatwork tool calls through the session, and print the final answer

Why Use Composio?

AI Native Chatwork Integration

  • Supports both Chatwork MCP and direct API based integrations
  • Structured, LLM-friendly schemas for reliable tool execution
  • Rich coverage for reading, writing, and querying your Chatwork data

Managed Auth

  • Built-in API key handling with secure credential storage
  • Central place to manage, scope, and revoke Chatwork access
  • Per user and per environment credentials instead of hard-coded keys

Agent Optimized Design

  • Tools are tuned using real error and success rates to improve reliability over time
  • Comprehensive execution logs so you always know what ran, when, and on whose behalf

Enterprise Grade Security

  • Fine-grained RBAC so you control which agents and users can access Chatwork
  • Scoped, least privilege access to Chatwork resources
  • Full audit trail of agent actions to support review and compliance

Rolling this out across your team?

Give your team centralized access control across every framework with Composio’s MCP Gateway.

EXPLORE MCP GATEWAY
FAQ

Frequently asked questions

No, you can get started immediately using Composio's built-in Chatwork app. For production, we recommend configuring your own API key credentials.

Yes! Composio's Tool Router enables agents to use multiple toolkits. Learn more.

Yes. Composio is SOC 2 Type II compliant and is built to keep your Chatwork connection and credentials secure. OAuth tokens and API keys are encrypted, and sensitive customer data is protected at rest and in transit.

Composio also undergoes independent security testing and continuously monitors its systems for security threats. You can review the latest reports and policies in the Composio Trust Center.

Composio maintains and updates all toolkit integrations automatically, so your agents always work with the latest API versions.

Create the key in your Chatwork account settings, then paste it once on Composio's connection page. Composio stores it encrypted and uses it only for the Chatwork actions your agent runs. Nobody else in your workspace can read it, and you can revoke it inside Chatwork at any time.

When you connect a Chatwork account through Composio, every action runs under that account, so anything the agent creates, sends, or changes shows up in Chatwork as done by you. Keep an approval step in your prompt for actions with side effects, such as sending or deleting, and have the agent draft first.

Whatever the credentials you connect allow inside Chatwork. If Chatwork lets you scope a key to specific permissions, create a scoped one so the agent can only do what you intend. You can revoke the key inside Chatwork at any time.

Yes. Composio supports multiple connected accounts for the same app, and that works in Claude, ChatGPT, or any other assistant you connect through Composio. Give each Chatwork connection a name such as work or personal, and the assistant uses the one you mention in the request. Each account keeps its own credentials and nothing is merged.

The connection stops working the moment Chatwork rejects the old key. Create a new key in Chatwork and reconnect the account from the Composio dashboard or by asking your agent to reconnect Chatwork. Nothing else changes.

Composio's free Hobby plan includes 100,000 tool calls per month with no credit card, and up to 20,000 of those can run through Composio-managed apps like Chatwork. Personal Chatwork use rarely gets near that. Paid plans add higher limits and team features, and Chatwork's own pricing is unaffected.

Built-in connectors usually give one AI access to a limited set of apps. Many people use Composio because it lets their AI connect to more apps than it normally supports, or connect to multiple accounts for the same app (e.g. connect Claude to multiple Chatwork accounts).

With Composio, you connect Chatwork once and then use it across different AI assistants without setting it up separately in each one. Connect your apps to Composio once, then connect Composio to whichever AI you use, whether that's Claude, ChatGPT, Hermes, or your own custom assistant.

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