| FMRS | 68 / 100 · C | 80 / 100 · B | 79 / 100 · B |
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| Reliability | 9 / 20 | 14 / 20 | 12 / 20 |
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| Security and permissions | 12 / 20 | 16 / 20 | 16 / 20 |
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| Maintenance | 18 / 20 | 17 / 20 | 18 / 20 |
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| Documentation | 16 / 20 | 15 / 20 | 18 / 20 |
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| Setup experience | 13 / 20 | 18 / 20 | 15 / 20 |
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| Best for | - Python developers comfortable with type hints who want to quickly build an MCP server or client
- Teams integrating MCP protocol capabilities (tool calls, resource access) into their own projects
- Existing v1 users evaluating or migrating to the MCP v2 specification
| - 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 looking for a ready-to-install, end-user-facing MCP server (this repo is an SDK, not a specific service)
- Projects stuck on Python 3.9 or earlier that cannot upgrade their runtime
- Projects not yet ready to handle v1-to-v2 breaking changes and needing long-term lock-in to v1 behavior
| - 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 | - The SDK itself does not request specific system permissions; actual permission needs depend on the server logic developers build with it
- If a server built with it runs over stdio, the host process can execute arbitrary local code logic defined by the developer's tool functions
- If a server uses SSE or Streamable HTTP transport, network listening/access is required
| - 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 | - As a development library, the security of any resulting server depends entirely on how the implementer writes tool and resource logic — the SDK cannot guarantee downstream code safety
- v1 to v2 introduces architectural breaking changes; projects without an upper version bound may unexpectedly pull an incompatible 2.x release on dependency upgrade
- Tool function parameters and return values may still trigger unintended behavior from malicious or malformed input if the implementer omits extra validation
| - 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, VS Code, Cursor, Cline, Amp | Claude Desktop, VS Code, Cursor, Smithery.ai |
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| Tools | 0 | 2 | 19 |
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