First-party app
Chatwork

Chatwork

Chats, messages, tasks, files, invite links and contacts on Chatwork, Japan's business team chat platform.

stable CommunicationProductivity

About

Chatwork ships in the w6w first-party pack. It declares 32 actions, 2 health checks, and the host runs its code in a sandbox that never sees the credential.

App id
io.w6w.chatwork
Version
0.1.0
Author
w6w
Licence
MIT
Categories
Communication · Productivity

Overview

Chatwork is a business team chat platform, widely used in Japan, that bundles messaging, tasks and file sharing into every chat room. This app covers the full documented surface of the Chatwork API v2: list and manage chats (create, update, leave or delete), read and post messages (including marking them read/unread and editing or deleting your own), create and track tasks assigned within a chat, list and upload files, manage a chat’s invite link, and read or respond to contact requests.

A few behaviors are worth knowing before building a workflow on top of this app: an empty list answers HTTP 204 rather than an empty array (handled transparently by every list action here); the message-list action is a stateful per-connection cursor that returns only what’s new since the last read unless you force a full fetch; and creating a task assigns it to every account listed, returning one task ID per assignee.

Authentication is a personal API token (issued from Chatwork’s own Service Integrations settings, and subject to your organization administrator’s approval). Health checks track the token’s live rate-limit headroom; Chatwork publishes no machine-readable status page, which is declared rather than guessed at.

Build with Chatwork

Three routes to the same 32 actions. The Workflow tab is generated from Chatwork's own manifest and carries its real ids, so it is copy-pasteable; the Code and CLI examples are the same call for any action on any app, so every app-specific value in them is a blank you fill in.

List Contacts

contact-list

List every contact of the connected account.

Approve Contact Request

incoming-request-approve

Approve a pending contact request, adding the requester as a contact.

List Contact Requests

incoming-request-list

List pending contact requests sent to the connected account.

Reject Contact Request

incoming-request-reject

Reject a pending contact request.

Get My Profile

me-get

Fetch the connected Chatwork account's own profile.

Get My Status

my-status-get

Fetch unread-message, mention and my-task counters across all of your chats.

List My Tasks

my-tasks-list

List tasks assigned to the connected account across every chat.

Create Chat

room-create

Create a new group chat.

Leave or Delete Chat

room-delete

Leave a group chat, or permanently delete it (Administrator role required).

Get File

room-file-get

Fetch one file's metadata, optionally with a download URL.

List Chat Files

room-file-list

List a chat's uploaded files. Use Get File for a download URL.

Upload File

room-file-upload

Upload UTF-8 text content to a chat as a new file (vendor limit: 5 MB).

Get Chat

room-get

Fetch one chat's info, including its description.

Create Invite Link

room-link-create

Create a chat's invite link. Fails if one already exists — use Update instead.

Delete Invite Link

room-link-delete

Delete a chat's invite link.

Get Invite Link

room-link-get

Fetch a chat's invite link, if one exists.

Update Invite Link

room-link-update

Update a chat's existing invite link.

List Chats

room-list

List every chat the connected account belongs to.

List Chat Members

room-member-list

List every member of a chat, with their role.

Replace Chat Members

room-member-update

Replace a chat's entire member list. Any current member not included in one of the three role lists is removed from the chat.

Delete Message

room-message-delete

Delete a message you previously posted.

Get Message

room-message-get

Fetch one message's full detail.

List Messages

room-message-list

List a chat's messages. With Force off, returns only messages posted since this connection's last read of this chat (see the action's own notes for what that means).

Mark Messages Read

room-message-mark-read

Mark a chat's messages read, up through the given message ID (or the whole chat).

Mark Messages Unread

room-message-mark-unread

Mark a chat's messages unread, from the given message ID onward.

Send Message

room-message-send

Post a new message to a chat.

Update Message

room-message-update

Edit a message you previously posted.

Create Task

room-task-create

Add a task to a chat. Creates one task per assignee in To — the response lists one task ID per account.

Get Task

room-task-get

Fetch one task's full detail.

List Chat Tasks

room-task-list

List a chat's tasks.

Update Task Status

room-task-status-update

Mark a task open or done.

Update Chat

room-update

Update a chat's name, description and/or icon. Requires the Administrator role.

A workflow step names the app and the action, and the editor fills in the connection when you pick one. This is the Step shape from the workflow spec, carrying Chatwork's real ids.

{
  "manifestVersion": "2",
  "name": "chatwork-example",
  "steps": [
    {
      "id": "incoming-request-approve",
      "uses": {
        "app": "io.w6w.chatwork",
        "action": "incoming-request-approve",
        "connection": "conn_YOUR_CONNECTION_ID"
      },
      "with": {
        "requestId": "<requestId>"
      }
    }
  ]
}

Here are some of the things you can do

  • Approve Contact Request

    perform
    incoming-request-approve
  • List Contacts

    read
    contact-list
  • List Contact Requests

    read
    incoming-request-list
  • Reject Contact Request

    perform
    incoming-request-reject
  • Get My Profile

    read
    me-get

+27 more actions available

Every app-specific value here is a blank you have to fill in. An app action is reached through the connection that authenticates it, so the address is a connection id, not the app id — and connections belong to your account, so a public page cannot know yours. Create one for Chatwork, then fill in the three blanks: conn_YOUR_CONNECTION_ID, the action key, and the parameters that action declares. The call itself is real — the shape is transcribed from the studio's own snippet builder, which prints the same kind of blanks — but nothing in it is specific to Chatwork. The Workflow tab is where this app's real ids are.

Install
npm install @w6w/sdk
yarn add @w6w/sdk
pnpm add @w6w/sdk
deno add npm:@w6w/sdk
Code
import { W6wClient, isActionRun } from "@w6w/sdk";

// Reads W6W_BASE_URL and W6W_TOKEN from the environment when omitted.
const client = new W6wClient();

const envelope = await client.run({
  urn: "conn_YOUR_CONNECTION_ID",
  action: "incoming-request-approve",
  payload: {
    requestId: "<value>",
  },
});

if (isActionRun(envelope)) console.log(envelope.value);
Install the CLI
npm install -g @w6w/cli
CLI
w6w run conn_YOUR_CONNECTION_ID --action incoming-request-approve --payload '{"requestId":"<value>"}'

Give an AI agent Chatwork — without giving it Chatwork's credentials. One MCP endpoint exposes every app, function and workflow the caller is entitled to, as tools it can discover and run. Access is granted per team while we onboard.

One tool call
{
  "name": "w6w_invoke",
  "arguments": {
    "ref": "app:io.w6w.chatwork#incoming-request-approve",
    "input": {
      "requestId": "<requestId>"
    }
  }
}

Every tool names its target with a single ref. The app: form above doesn't name a connection at all — the host resolves which of the caller's Chatwork connections to sign with, and refuses rather than guesses when the answer is ambiguous.

What the agent gets

Credentials it can't read

The token is attached host-side, at the moment of the call. It is never a tool argument, never in the model's context, and never in a transcript — so a prompt injection has nothing to exfiltrate.

A tool surface scoped to the caller

Tools are derived per end user from what that person has actually connected and is entitled to — not one shared bot identity carrying the union of everyone's access.

A durable workflow in one call

Multi-step work runs on the workflow engine and returns a run handle the agent can poll — retries, branching and state survive the conversation that started them.

Health-aware discovery

Chatwork's declared health checks are on the surface too, so an agent can tell "the vendor is down" from "your credential expired" before it burns a retry on either.

The MCP surface is part of the hosted platform. Chatwork itself is MIT, and the runtime that executes it is source-available (FSL).

Request MCP access

Health checks

Chatwork declares its own checks, so its health is a property of the app rather than something the host guesses at.

service

Chatwork platform status

No machine-readable status page or incident feed was found for Chatwork as of 2026-08-29 (checked: status.chatwork.com, chatworkstatus.com and info.chatwork.com, none of which resolve; chatwork.statuspage.io, which is an unclaimed Statuspage instance; and the developer portal's own guide pages, which name none).

quota

Rate-limit headroom

Requests remaining in the current window, read from the X-RateLimit-* headers on GET /me.