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growthbook-mcp

Thin MCP server for GrowthBook — skill loader + authenticated API passthrough

growthbookgrowthbook/growthbook-mcp★ 23Updated Oct 6, 2026

server.json

{
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "name": "io.github.growthbook/growthbook-mcp",
  "description": "Thin MCP server for GrowthBook — skill loader + authenticated API passthrough",
  "repository": {
    "url": "https://github.com/growthbook/growthbook-mcp",
    "source": "github"
  },
  "version": "2.2.0",
  "packages": [
    {
      "registryType": "npm",
      "identifier": "@growthbook/mcp",
      "version": "2.2.0",
      "transport": {
        "type": "stdio"
      },
      "environmentVariables": [
        {
          "description": "A GrowthBook API key or personal access token.",
          "format": "string",
          "name": "GB_API_KEY"
        },
        {
          "description": "Your GrowthBook API URL. Defaults to https://api.growthbook.io.",
          "format": "string",
          "name": "GB_API_URL"
        },
        {
          "description": "Set to false to disable bundled skill tools (growthbook_list_skills, growthbook_read_skill). Defaults to true.",
          "format": "string",
          "name": "GB_SKILLS_ENABLED"
        },
        {
          "description": "Custom HTTP headers via GB_HTTP_HEADER_<NAME> (e.g. GB_HTTP_HEADER_CF_ACCESS_TOKEN).",
          "format": "string",
          "name": "GB_HTTP_HEADER_*"
        }
      ]
    }
  ]
}

Permissions

DeclaredDetected
Runs code—node
Installs—npm:@growthbook/mcp@2.2.0
Runs install scripts—None
NetworkNoneNone
Needs credentialsNoneNone
Outside the workspace—None
Agent tools—None

Checks

Low risk · Nothing worth a warning was found.

Not reviewed by a person · Checked by rules; the model review is not switched on yet.

Versions

  1. #12.2.0latestOct 7, 2026