| FMRS | 67 / 100 · C | 80 / 100 · B | 79 / 100 · B |
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| Reliability | 10 / 20 | 14 / 20 | 12 / 20 |
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| Security and permissions | 12 / 20 | 16 / 20 | 16 / 20 |
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| Maintenance | 16 / 20 | 17 / 20 | 18 / 20 |
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| Documentation | 15 / 20 | 15 / 20 | 18 / 20 |
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| Setup experience | 14 / 20 | 18 / 20 | 15 / 20 |
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| Best for | - Developers who need reliable, high-quality search capabilities
- AI applications requiring multiple search functions with easy integration
- Remote MCP scenarios where OAuth simplifies authentication
| - 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 who need fully offline or external-API-free operation
- Scenarios where searching private data or keeping data local is required
- High-volume crawling due to extra credit costs per crawl
| - 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 | - Requires Search1API API key (local) or OAuth authorization (remote)
- Remote mode trusts mcp.search1api.com and localhost by default; self-hosted deployments can configure MCP_ALLOWED_HOSTS and MCP_ALLOWED_ORIGINS
- Search and crawl actions may consume API credits
| - 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 | - API key leakage: passing key via URL query parameter can expose it in logs; prefer OAuth or Authorization header
- Network dependency: remote mode requires access to mcp.search1api.com
- Data privacy: search queries and crawled content are sent to third-party API
- Rate limits and costs: high-frequency requests may incur charges or be throttled
| - 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 Desktop, Claude.ai, Cursor, VS Code, Claude Code, Windsurf | Claude Code, VS Code, Cursor, Cline, Amp | Claude Desktop, VS Code, Cursor |
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| Tools | 5 | 2 | 19 |
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