# Braintrust MCP server > Query Braintrust experiments, datasets, prompts and production logs, author scorers, run evals and search the docs from your assistant. - Listing: https://mcp.tc/i/braintrust - Connect: use the server's own URL `https://api.braintrust.dev/mcp` (OAuth sign-in at the server); clients connect to it directly. The listing link is a page, not an MCP endpoint. - Type: remote (Streamable HTTP) - Auth: OAuth sign-in - Category: [Observability & Incidents](https://mcp.tc/c/observability) - Vendor: Braintrust - Homepage: ## About Connects MCP clients such as Claude Code, Cursor, Codex and VS Code to Braintrust, an AI evaluation and observability platform. You can query production logs and traces, work with experiments, datasets and prompts, author scorers, configure Topics, and run evaluations. The documentation also describes dashboards, automations and alerts, project settings, and docs search. The server is hosted, so nothing is installed. Sign in with OAuth, or send an Authorization: Bearer header with a Braintrust API key. The default endpoint is https://api.braintrust.dev/mcp. EU accounts use https://api-eu.braintrust.dev/mcp, and self-hosted deployments use the URL shown in Settings \> Data plane. ## What it can do - Query production logs and analyze traces - Explore experiments, datasets and prompts - Author prompts and scorers - Run evals and edit datasets - Configure Topics and manage patterns - Manage automations, alerts and project settings - Search Braintrust docs ## Example prompts - "Show the slowest traces from my production logs in the last day" - "List recent experiments in my support-bot project and compare scores" - "Write a scorer that checks answers for factual accuracy" - "Search the Braintrust docs for how to set up an alert" ## Install ### Claude Code 1. Run this in a terminal, in your project folder: ```bash claude mcp add --transport http braintrust https://api.braintrust.dev/mcp ``` 2. Start Claude Code, type `/mcp`, pick **braintrust** and choose **Authenticate**. A browser window opens for the Braintrust sign-in. Add `--scope user` to make it available in every project, not just this one. ### Claude Desktop 1. Open **Settings → Connectors** and click **Add custom connector**. 2. Name it **Braintrust** and paste this URL: ```url https://api.braintrust.dev/mcp ``` 3. Click **Add**, then **Connect**, and sign in when Braintrust asks. Claude Desktop’s JSON config file only starts local servers. Remote servers go through Connectors, and connectors you add on claude.ai show up here too. ### claude.ai 1. Open the connector form on claude.ai. This button fills in the name and URL for you: [Add to claude.ai]() (opens connector settings) 2. Check that the URL reads `https://api.braintrust.dev/mcp` and click **Add**. 3. Click **Connect** and sign in when Braintrust asks. Free plans allow one custom connector. On Team and Enterprise plans an owner adds it under **Organization settings → Connectors**. ### ChatGPT 1. On chatgpt.com, open **Settings → Security and login** and turn on **Developer mode**. 2. Go to `chatgpt.com/plugins` and click **+** to create an app for a remote MCP server. 3. Paste `https://api.braintrust.dev/mcp` as the server URL and choose **OAuth**. ChatGPT sends you to Braintrust to sign in. Developer mode is available on the web for Plus, Pro, Business, Enterprise and Education accounts. ### Cursor [Add to Cursor]() (opens Cursor) Or add it by hand to `~/.cursor/mcp.json` (all projects) or `.cursor/mcp.json` (this project): `mcp.json`: ```json { "mcpServers": { "braintrust": { "url": "https://api.braintrust.dev/mcp" } } } ``` Cursor shows **Needs login** next to the server. Click it to sign in. ### VS Code [Install in VS Code]() (opens VS Code) Or from a terminal: ```bash code --add-mcp '{"name":"braintrust","type":"http","url":"https://api.braintrust.dev/mcp"}' ``` Or commit it to the repo in `.vscode/mcp.json`: `.vscode/mcp.json`: ```json { "servers": { "braintrust": { "type": "http", "url": "https://api.braintrust.dev/mcp" } } } ``` VS Code asks you to sign in the first time the server starts. ### Devin Desktop 1. Add it to `~/.config/devin/mcp_config.json` (macOS and Linux) or `%APPDATA%\devin\mcp_config.json` (Windows): `mcp_config.json`: ```json { "mcpServers": { "braintrust": { "serverUrl": "https://api.braintrust.dev/mcp" } } } ``` 2. Refresh the MCP server list in Cascade and sign in when asked. Devin Desktop is the new name for Windsurf. It reads `serverUrl` (or `url`) for remote servers. ### Codex ```bash codex mcp add braintrust --url https://api.braintrust.dev/mcp codex mcp login braintrust ``` Or edit `~/.codex/config.toml` directly: `config.toml`: ```toml [mcp_servers.braintrust] url = "https://api.braintrust.dev/mcp" ``` ### Gemini CLI ```bash gemini mcp add --transport http braintrust https://api.braintrust.dev/mcp ``` Then, inside Gemini CLI, run `/mcp auth braintrust` to sign in. This adds it to the current project. Add `-s user` to use it everywhere. ### Any client Most clients accept this shape. Some name the URL field differently: `serverUrl` in Devin Desktop, `httpUrl` in Gemini CLI’s settings file. ```json { "mcpServers": { "braintrust": { "type": "http", "url": "https://api.braintrust.dev/mcp" } } } ``` Zed puts servers under `context_servers` in its settings. Cline needs `"type": "streamableHttp"`, or it assumes SSE. Client only starts local servers? Bridge it with `npx -y mcp-remote https://api.braintrust.dev/mcp`. ## Details - Server version: 1.0.0 - Last checked: 2026-10-03 (reachable, asks for credentials) - Listed: 2026-10-03 - Updated: 2026-10-03 --- Source: https://mcp.tc/i/braintrust (mcp.tc is an independent directory, not affiliated with this server's publisher). Corrections: https://mcp.tc/report