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composer-mcp is an MCP project maintained in the olivergrabner/composer-mcp repository. The maintainer describes its purpose as “Your browser will open for authorization on first use”. Read the project documentation for the complete scope.
The maintainer’s configuration uses https://mcp.usecomposer.com. It declares streamable-http transport. Check the project’s account and authentication instructions when adding the endpoint to your client.
Project documentation · Repository · Discovery listing. This profile records the public documentation checked on 2026-10-08.
Check the linked publisher documentation and your connected client's tool list. Names and availability can vary with the server version and account permissions.
| Tool | What it does |
|---|---|
| list_diagrams | List all your diagrams. Call this first to find which diagram to work on |
| create_diagram | Create a new diagram and auto-select it for this session |
| select_diagram | Select which diagram to work on for this session |
| rename_diagram | Rename the currently selected diagram |
| get_graph | Get the full architecture diagram - all nodes and edges |
| get_node | Get details for a single node including connected edges |
| search_graph | Search nodes and edges by keyword |
| get_screenshot | Get a PNG thumbnail of the diagram from the last auto-save |
| upsert_node | Create or update a node (service, database, queue, etc.) |
| upsert_edge | Create or update a connection between two nodes |
| define_api | Define API endpoints on a backend service node |
| delete_element | Delete a node or edge from the diagram |
| link_path | Link a node to a file or folder in your codebase |
| verify_diagram | Check for issues like missing endpoints or orphaned nodes |
| plan_import | Step-by-step workflow for importing an existing codebase |
| get_guide | Reference guide for node types, protocols, and best practices |
{
"mcpServers": {
"composer": {
"type": "http",
"url": "https://mcp.usecomposer.com"
}
}
}From the project documentation. Replace placeholders and example paths before connecting.
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