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Claude Cowork extends Claude’s agentic capabilities to general knowledge work. Connect Cowork to Braintrust MCP to work with Braintrust projects, experiments, logs, and other data from Cowork.

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Connect to Braintrust MCP

Use a remote custom connector to give Cowork access to Braintrust tools.
1

Add the Braintrust connector

Follow the Claude guide to add Braintrust as a custom connector. Use your Braintrust MCP endpoint as the server URL: https://api.braintrust.dev/mcp for US organizations. For EU and self-hosted organizations, see MCP endpoints.
Use OAuth to sign in. Each person signs in with their own Braintrust account, and you don’t need an OAuth client ID or client secret.
2

Verify the connection

To verify the connection, ask Cowork to list your recent Braintrust projects. If it can’t connect, see Braintrust MCP troubleshooting.
3

Start using Braintrust tools

Cowork can query logs, compare experiments, work with datasets, and use other Braintrust tools. For example:
  • “Show me my recent Braintrust experiments.”
  • “Query the last 10 logged requests with errors.”
  • “Compare accuracy scores between my two latest experiments.”
See what the Braintrust MCP can do for more workflows and example prompts.

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Next steps