Context7
An MCP server that provides LLMs with up-to-date, version-specific documentation and code examples for programming libraries. Resolves library names to Context7 IDs, then retrieves current documentation and examples directly into the agent's context. Prevents hallucinated or outdated API references by pulling from live sources.
Score Breakdown
⚙ Agent Friendliness
🔒 Security
Up-to-date documentation MCP. Fetches live docs from external sources. Validate document sources — SSRF protection needed. Cached content may become stale.
⚡ Reliability
Best When
You are coding with an AI assistant and need accurate, current documentation for popular open source libraries rather than relying on the LLM's potentially outdated training data.
Avoid When
You primarily work with internal/private libraries, or you need guaranteed documentation accuracy. The community-contributed nature means coverage and quality vary by library.
Use Cases
- • Getting current API documentation while coding with an AI assistant
- • Preventing AI hallucination of deprecated or nonexistent API methods
- • Looking up version-specific library usage examples during development
- • Augmenting any MCP-compatible coding assistant with live documentation
Not For
- • Private or internal library documentation (community-contributed public docs only)
- • Non-programming documentation needs
- • Guaranteed-accurate documentation (community contributed, no accuracy guarantee)
Interface
Authentication
Free tier works without auth. API key via CONTEXT7_API_KEY header for higher rate limits. OAuth 2.0 supported for remote HTTP connections only (not stdio transport). Get API key from context7.com/dashboard.
Pricing
MCP server code is MIT licensed. Backend parsing/crawling engine is proprietary. Free tier with rate limits; upgraded API keys available from dashboard for higher limits. Pricing details not publicly documented.
Agent Metadata
Known Gotchas
- ⚠ Requires explicit 'use context7' invocation unless rules are configured in the client
- ⚠ OAuth only available for remote HTTP connections, not local stdio transport
- ⚠ Community-contributed library docs with no accuracy guarantee
- ⚠ Backend parsing engine is proprietary - you depend on their service for doc freshness
- ⚠ Library resolution may return multiple matches requiring disambiguation
Alternatives
Full Evaluation Report
Detailed scoring breakdown, competitive positioning, security analysis, and improvement recommendations for Context7.
Scores are editorial opinions as of 2026-03-06.