Integration · Communication

Connect Claude & ChatGPT to Chatwork

Ask your AI what you missed in a group chat, which tasks are still open for you, or to post an update, and it works in your Chatwork account. It can list your chats and unread counts, read messages, see members, tasks, contacts and shared files, and send messages to a chat.

Connect Chatwork free

Free plan, no credit card. Takes about a minute.

Try asking

“How many unread messages and mentions do I have?”
The AI reads your counts of unread messages, unread mentions and open tasks across all chats.
“What did I miss in the Project Alpha chat?”
It finds the chat and reads the new messages since the last fetch, then sums them up.
“Which tasks are still open for me?”
It lists the tasks assigned to you with status open, with the chat they belong to.

What your AI can do

Chats and messages

List your chats with unread counts, read chat details and messages, and post messages to a chat.

Tasks

See your own open or done tasks across all chats, and list or read the tasks in one chat.

People and files

List chat members and your contacts, and find files shared in a chat with a temporary download link.

“Post in Project Alpha that the release moved to Monday.”
It sends the message to the chat. All members see it right away.
“Find the spec file Ken shared in Project Alpha.”
It lists the files in the chat uploaded by Ken and can create a temporary download link.
“Who is in the Marketing chat?”
It lists the chat's members with their account IDs and roles.

14 tools for Chatwork

These tools are switched on when you connect. You can switch any of them off, or require your approval before it runs.

get_meGet your own Chatwork profile (account ID, name, organization). Use to confirm which account you are working in.
get_my_unread_countsGet your counts of unread messages, unread mentions and open tasks across all chats.
get_roomGet one chat by `room_id`: name, description, type and unread counts.
get_room_fileGet one file in a chat (`room_id`, `document_id`); set `create_download_url` to 1 for a temporary download link.
get_room_messageGet one message by `room_id` and `message_id`.
get_room_taskGet one task by `room_id` and `task_id`.
list_contactsList your Chatwork contacts, with account ID, name and direct-chat room ID.
list_my_tasksList tasks assigned to you across all chats, filtered by `status` (open or done).
list_room_filesList files shared in a chat by `room_id`, optionally only those uploaded by `account_id`.
list_room_membersList the members of a chat by `room_id`, with their account IDs and roles.
list_room_messagesList messages in a chat by `room_id`. By default only messages new since the last fetch are returned; set `force` to 1 for the latest 100.
list_room_tasksList tasks in a chat by `room_id`, filtered by `status`, assignee `account_id` or `assigned_by_account_id`.
list_roomsList all chats (group chats, direct chats and My Chat) with unread counts. Use to find a room ID.
send_messageChanges dataPost a message to a chat (`room_id`) with text in `body`. The message is sent to all chat members immediately.

Set up in three steps

1
Pick the app
Create a free PipMCP account and choose Chatwork from the app list.
2
Paste your key
Paste your Chatwork API token. In Chatwork click your user name (top right), choose Integrations, then API Token in the left menu to view your token. Except on the Personal plan, an organization admin must approve your API use first.
3
Add the link to your AI
You get a personal MCP link. Add it to Claude, ChatGPT or Cursor:
Click your name, then Settings › Connectors › Add custom connector. Paste your link as the Remote MCP server URL. Switch it on from the + menu in a chat.

Questions

What can the AI do in Chatwork?

It can read your profile, unread counts, chats, chat members, messages, your tasks and the tasks in a chat, your contacts and files shared in a chat. It can send messages to a chat.

Does the AI see my Chatwork API token?

No. Your Chatwork API token is encrypted at rest and never shown to the AI. After you save it, it is not shown again, not even to you. The AI only sees the results of the tools it calls.

Can I control what the AI is allowed to do?

Yes. You choose which tools are switched on, so you can start read-only. A message goes to every member of the chat right away, so sending can require your approval before it runs. Every tool call is logged.

Does it work with ChatGPT?

Yes. In ChatGPT, open Settings › Apps & Connectors › Advanced, turn on Developer mode and add your PipMCP link. Developer mode needs a paid ChatGPT plan: Plus, Pro, Business or Enterprise. The same link also works in Claude (Settings › Connectors › Add custom connector), Cursor and other MCP clients.

What does it cost?

PipMCP has a free plan, and you do not need a credit card to start. Paid plans bill per completed task. You also need your own Chatwork account.

Do I need approval from my organization?

It depends on your plan. Chatwork says that, except on the Personal plan, an organization admin must approve your API use before you can use the API token. Once it is approved, you view the token under Integrations > API Token and paste it into PipMCP.