| FMRS | 52 / 100 · D | 80 / 100 · B | 79 / 100 · B |
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| Reliability | 8 / 20 | 14 / 20 | 12 / 20 |
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| Security and permissions | 12 / 20 | 16 / 20 | 16 / 20 |
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| Maintenance | 10 / 20 | 17 / 20 | 18 / 20 |
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| Documentation | 13 / 20 | 15 / 20 | 18 / 20 |
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| Setup experience | 9 / 20 | 18 / 20 | 15 / 20 |
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| Best for | - AI coding agents that need local code intelligence.
- Teams requiring cross-file call resolution, architecture analysis, or incremental indexing.
- Users who prefer a pure-C stdio server with local persistent storage.
| - Developers using fast-moving frameworks/libraries worried about the AI suggesting stale code
- Scenarios wanting zero-config documentation lookup
| - Developers auditing NPM dependencies within AI workflows
- Teams performing supply chain security assessments
- Users of Claude Desktop, Cursor, or VS Code
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| Not for | - Users requiring a built-in large language model or cloud-hosted code analysis.
- Users unable to build from source or provide a C/C++ build environment.
- Clients requiring SSE or streamable-http transport.
| - 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)
| - Projects outside the NPM ecosystem (e.g., pure Python/Go)
- Environments without network access to deps.dev, OSV.dev, and the npm registry
- Scenarios requiring maintenance by an official upstream vendor
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| Required permissions | - Read access to the repositories and Git changes being indexed.
- Local write access for the SQLite graph database and configuration in the cache directory.
- When installing or configuring supported agents, write access to agent configuration, instruction files, skills, and hooks.
- Write access to Architecture Decision Records when managing ADRs.
| - 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
| - Network access to the NPM registry and external services (deps.dev, OSV.dev, OpenSSF, npms.io, GitHub)
- Read access to workspace lockfiles (pnpm-lock.yaml, package-lock., yarn.lock) for cache invalidation
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| Risks and side effects | - The tool reads the codebase and may write to agent configuration files.
- The fork has no prebuilt binaries; building compiles many vendored grammars.
- Do not run the binary's update subcommand because it pulls the official upstream release and overwrites the integrated build.
- Deleting a project or local cache removes the corresponding graph data, but not the source code.
| - 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
| - Third-party READMEs and changelogs are untrusted external content; they are wrapped in tags with _meta flags but should still be handled cautiously
- Depends on availability and accuracy of external services
- Batch requests are capped at 25 packages to prevent registry enumeration; larger sets require batching
- Third-party open source project, not officially maintained by NPM or Anthropic
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| Supported clients | Claude Code, Codex, Gemini CLI, Zed, OpenCode, Antigravity, Aider, KiloCode, VS Code, OpenClaw, Kiro | Claude Code, VS Code, Cursor, Cline, Amp | Claude Desktop, VS Code, Cursor |
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| Tools | 15 | 2 | 19 |
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