Install OpenProject in Claude Code

What you need first

• Claude Code, installed.
• uv, which gives the uvx command the server starts with.
• Your own values for YOUR_OPENPROJECT_URL,YOUR_OPENPROJECT_API_KEY.

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 OPENPROJECT_URL=YOUR_OPENPROJECT_URL --env OPENPROJECT_API_KEY=YOUR_OPENPROJECT_API_KEY --transport stdio openproject-mcp-server -- uvx openproject-mcp-server==0.4.0

2. Replace YOUR_OPENPROJECT_URL,YOUR_OPENPROJECT_API_KEY with your own values.
3. Start Claude Code and type /mcp: the server is listed with its state.

Check it worked

Ask Claude Code: List the tools of openproject-mcp-server.

If it does not start

spawn uvx ENOENT

uv is not on the PATH that Claude Code sees. Install it, or write the full path of uvx in the config.

The server starts, but its tools fail

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