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Compare scores, permissions, risks, and fit in one decision-focused table.

DimensionGrowthBook MCP ServerOfficial GrowthBook MCP server: skill loader + authenticated API passthroughContext7Upstash's official server providing up-to-date third-party library docs for AI coding assistants
FMRS60 / 100 · C80 / 100 · B
Reliability9 / 2014 / 20
Security and permissions9 / 2016 / 20
Maintenance13 / 2017 / 20
Documentation16 / 2015 / 20
Setup experience13 / 2018 / 20
Best for
  • Teams already using GrowthBook who want agents to manage flags and experiments
  • MCP users who want an authenticated, auditable API passthrough
  • Operators of self-hosted instances
  • Developers using fast-moving frameworks/libraries worried about the AI suggesting stale code
  • Scenarios wanting zero-config documentation lookup
Not for
  • Users without GrowthBook
  • Read-only browsing without a GrowthBook API key
  • Environments that cannot tolerate agent-driven mutating API calls
  • Looking up internal/private codebase documentation (Context7 targets publicly published open-source libraries)
  • Cases needing very high coverage of obscure, niche libraries (coverage depends on what Context7's platform has indexed)
Required permissions
  • GB_API_KEY: a GrowthBook API key or personal access token (required, secret)
  • GB_API_URL: API base URL (optional, defaults to https://api.growthbook.io)
  • GB_HTTP_HEADER_*: extra request headers (e.g. Cloudflare Access tokens)
  • Usable without an API key (subject to a free-tier rate limit); CONTEXT7_API_KEY is an optional credential for higher quota
  • Read-only documentation lookup — no code execution or local filesystem access involved
Risks and side effects
  • growthbook_call_api is a generic passthrough; POST/PUT/PATCH/DELETE can mutate data, and the confirm-with-user rule is soft guidance, not a hard gate
  • The API key is a sensitive credential that can act on the whole account if leaked
  • HTTP mode should run on a trusted network or loopback; multi-tenant or public deployments should be fronted by your own gateway/auth
  • The free tier has limited quota — high-frequency use may hit rate limits
  • Documentation content comes from Context7's platform index, so its accuracy and freshness depend on that platform's crawl cadence
Supported clientsClaude Code, VS Code, Cursor, Cline, Amp
Tools32