Install Outline in Claude Code

What you need first

• Claude Code, installed.
• Docker, which gives the docker command the server starts with.
• Your own value for YOUR_OUTLINE_MCP_DATABASE_URL.

Steps

1. Run this in a terminal, in the project folder. It adds the server for you in that project; put --scope user after claude mcp add to have it in every project.

claude mcp add --env OUTLINE_MCP_DATABASE_URL=YOUR_OUTLINE_MCP_DATABASE_URL --transport stdio outline-mcp -- docker run -i --rm -e OUTLINE_MCP_DATABASE_URL ghcr.io/ynishi/outline-mcp:0.15.3

2. Replace YOUR_OUTLINE_MCP_DATABASE_URL with your own value.
3. Start Claude Code and type /mcp: the server is listed with its state.

Check it worked

Ask Claude Code: List the tools of outline-mcp.

If it does not start

Cannot connect to the Docker daemon

Docker is not running. Start it, then restart Claude Code.

The server starts, but its tools fail

A YOUR_… placeholder is still in the config, or its value is wrong.