> ## Documentation Index
> Fetch the complete documentation index at: https://docs.braintrust.dev/llms.txt
> Use this file to discover all available pages before exploring further.

# Claude Cowork

> Connect Claude Cowork to Braintrust MCP with a remote connector to query logs, compare experiments, and work with Braintrust data from Cowork.

[Claude Cowork](https://support.claude.com/en/articles/13345190) 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.

## Connect to Braintrust MCP

Use a remote custom [connector](https://support.claude.com/en/articles/11175166) to give Cowork access to Braintrust tools.

**1. Add the Braintrust connector**

Follow the [Claude guide](https://claude.com/docs/connectors/custom/add-unlisted) 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](https://docs.braintrust.dev/integrations/developer-tools/mcp.md#endpoints).

> [!NOTE]
>
> 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](https://docs.braintrust.dev/integrations/developer-tools/mcp.md#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](https://docs.braintrust.dev/integrations/developer-tools/mcp.md#what-the-mcp-can-do) for more workflows and example prompts.

## Next steps

* **Run evaluations**: Follow the [evaluation guide](https://docs.braintrust.dev/evaluate/run-evaluations.md).
* **Explore MCP tools**: See the [Braintrust MCP tool reference](https://docs.braintrust.dev/integrations/developer-tools/mcp.md#tools).


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