MCP ServerSTDIOOfficialv1.8.1

growthbook-mcp MCP Server

MCP Server for interacting with GrowthBook

io.github.growthbook/growthbook-mcp

Hosted URL

https://github.com/growthbook/growthbook-mcp

Transport

STDIO

Auth

No auth required

Connect to growthbook-mcp

Hosted endpoint — paste into any MCP client.

https://github.com/growthbook/growthbook-mcp

Configuration this server reads at startup.

GB_API_KEY
A GrowthBook API key or PAT.
GB_EMAIL
Your email address used with GrowthBook. Used when creating feature flags and experiments.
GB_API_URL
Your GrowthBook API URL. Defaults to `https://api.growthbook.io`.
GB_APP_ORIGIN
Your GrowthBook app URL Defaults to `https://app.growthbook.io`.
GB_HTTP_HEADER_*
Custom HTTP headers to include in all GrowthBook API requests. Use the pattern GB_HTTP_HEADER_<NAME> where <NAME> is converted to proper HTTP header format. Examples: GB_HTTP_HEADER_X_TENANT_ID=abc123, GB_HTTP_HEADER_CF_ACCESS_TOKEN=<token>. Multiple custom headers can be configured.

Where to find authoritative docs and source for growthbook-mcp.

Open MCP Agent Studio and connect this server to Claude, GPT, Gemini, DeepSeek and more — no install required.

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