Collaboration & Communication · Chatwork + Claude
Chatwork MCP with Claude: Automate Group Chats, Files and Tasks
The short answer
Claude works with Chatwork through the Model Context Protocol (MCP), an open standard that acts as a secure adapter between the two. Once connected with an API key, Claude can send messages to group chats, share files, and create tasks from natural language instructions. Your organisation controls which rooms and actions Claude can access.
What is Chatwork?
Chatwork is a team communication platform used by businesses to run group chats, share files and manage tasks in one place. It is popular with teams that need quick, organised conversations across departments, projects and clients. Operations managers, project leads, sales teams and support staff typically use it to keep work moving without relying on e-mail chains. Its group rooms act as shared workspaces where decisions, documents and to-dos sit together.
How Claude connects to Chatwork through MCP
The Model Context Protocol (MCP) is an open standard that lets Claude use other software securely. Think of it as a universal adapter between Claude and a tool like Chatwork. Your team sets up the connection once, and Claude then works within the permissions you have granted, rather than having open access to everything.
Once connected, Claude can read information from Chatwork and take actions it has been allowed to take. For example, it can post a status update to a project room, share a file to the right group chat, or create a task from a request written in everyday language. Connections typically use the API key sign-in method that Chatwork supports, with access limited to the rooms and functions the workflow needs.
Permissions and approvals keep people in charge. Consequential actions, such as posting to a client-facing room or creating tasks assigned to several people, can be routed for human approval before they happen. Every action is logged, so your team can review what Claude did and when.
What you can automate
Project status updates
Claude can gather progress notes from a project workspace and post a concise weekly summary to the relevant Chatwork group chat. Project managers receive consistent updates without spending time compiling them each Friday. Team members can reply in the same room, keeping discussion and documentation together.
Turning requests into tasks
When a request arrives in a group chat, Claude can read the message, identify the owner and deadline, and create a Chatwork task from the request. This reduces the common problem of agreed actions getting lost in a busy conversation. Staff see clear ownership and due dates in their task lists.
Sharing approved documents
Operations teams often need to send the latest version of a document to the right audience. Claude can select the approved file from a shared location and post it to the correct group chat with a short covering message. Permissions ensure only designated rooms receive the file.
Onboarding new staff
Claude can help HR and team leads add a new starter to the right group chats, share welcome material and create first-week tasks. This gives new employees a clear starting point. Each step can be reviewed by a manager before it goes live.
Client-facing notifications
Customer service teams can use Claude to draft and send standard notifications, such as service updates or appointment reminders, to designated client rooms. Human approval before sending helps keep tone and accuracy under control. Responses are tracked in one place.
An end-to-end workflow: Support escalation to project tasks
TriggerA customer issue is logged in the helpdesk system and flagged as urgent.
Claude reads the urgent ticket from the helpdesk system and summarises the issue and customer impact.
Claude posts the summary to the relevant Chatwork support room and tags the duty engineer.
Claude creates a Chatwork task for the engineer with the agreed response deadline.
The engineer confirms the plan in the room, and Claude records the decision back on the ticket.
Once the fix is complete, Claude posts a closing update to the room and to the customer notification list, after manager approval.
OutcomeUrgent issues reach the right people faster, with clear ownership and deadlines. Typically, teams report less time spent relaying information between systems and fewer dropped follow-ups.
How we set it up
Free automation audit
We review how your team uses Chatwork and identify the workflows worth automating. This is free and carries no obligation.
Connection design
We set up the Chatwork connection using the API key sign-in method, with least-privilege access limited to the rooms and actions you approve.
Workflow build
We design the end-to-end workflow across Chatwork and your other systems, such as Microsoft 365, CRM, ERP or ticketing, with approval steps for consequential actions.
Testing against real cases
We test the workflow using past conversations and tasks, then refine it until outputs match your standards.
Launch and training
We launch with monitoring and audit logs in place, then train your team so they understand how Claude works within Chatwork.
Who benefits
- Operations managers
- Fewer manual status updates and clearer task ownership across teams.
- Project leads
- Consistent progress reporting and fewer decisions lost in chat threads.
- Customer service managers
- Faster, more consistent notifications with human approval before sending.
- IT and department heads
- Controlled, logged access that fits existing security policies.
Security and control
- Least-privilege access, so Claude only reaches the rooms and functions your workflow requires.
- Human approval for consequential actions such as client-facing posts or bulk task creation.
- Full audit logs of every action Claude takes in Chatwork.
- Regular review of API key permissions and rotation as part of routine security practice.
For teams in the US, UK, India and the Middle East
Organisations in the United States and the United Kingdom can connect Chatwork to Claude with data handled in line with their own compliance obligations. In India, workflows are designed to meet the Digital Personal Data Protection Act, 2023. Organisations in the UAE and Saudi Arabia are supported under local data protection laws. We choose the hosting region for each build, in India, the United States, the United Kingdom or the European Union, to meet your specific requirements.
Learn more about Claude and MCP
Anthropic's AI model and assistant.
Secure links between Claude and business tools.
How engineers build and change software with Claude.
Hosted agents that run multi-step work.
The open standard Claude uses to connect to tools.
Frequently asked questions
What does the Chatwork MCP server do?
The Chatwork MCP server acts as a secure bridge between Claude and your Chatwork account. It lets Claude send messages, manage group chats, share files and create tasks through defined actions. The server only exposes the functions that are configured for your workflow, so access stays focused and predictable.
Is connecting Chatwork to Claude secure?
Security depends on how the connection is set up. We use the API key sign-in method with least-privilege access, limit Claude to approved rooms, require approval for sensitive actions and keep audit logs. Keys are stored securely and rotated as part of routine practice.
What can Claude actually do in Chatwork?
Typically, Claude can read messages in permitted rooms, post updates, share files, and create tasks from natural language instructions. It can also summarise conversations and prepare drafts for your team to review. The exact capabilities are set during design to match your workflow.
How long does setup take?
A simple connection and single workflow can often be set up within a few weeks, including testing. More complex builds that span several systems take longer. Your free automation audit gives a clearer timeline based on your requirements.
Which plan or permissions are needed?
In general, you need an active Chatwork account with the rights to generate an API key and access the rooms you want to automate. Your administrator should confirm that API access is permitted under your current arrangement. We check these requirements during the free audit.