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Claude Kit

Context7

Context7

Section titled “Context7”

Context7 provides up-to-date documentation for libraries and frameworks, ensuring Claude has accurate API references instead of outdated training data.

Configuration

Section titled “Configuration”
{
  "mcpServers": {
    "context7": {
      "command": "npx",
      "args": ["-y", "@upstash/context7-mcp"]
    }
  }
}

Available Tools

Section titled “Available Tools”

resolve-library-id

Section titled “resolve-library-id”

Finds the Context7-compatible library ID for documentation lookup.

Parameters:

  • libraryName — Library name to search for

Example:

resolve-library-id("react")
→ Returns: "/facebook/react"

get-library-docs

Section titled “get-library-docs”

Fetches documentation for a specific library.

Parameters:

  • context7CompatibleLibraryID — Library ID from resolve-library-id
  • topic (optional) — Focus area (e.g., “hooks”, “routing”)
  • mode — code for API references, info for concepts
  • page — Pagination (1-10)

Example:

get-library-docs("/facebook/react", topic="hooks", mode="code")
→ Returns: Current React hooks documentation with examples

Use Cases

Section titled “Use Cases”

Research Libraries

Section titled “Research Libraries”
/research Next.js App Router

Context7 fetches current Next.js documentation for accurate analysis.

Feature Development

Section titled “Feature Development”
/feature Add authentication with NextAuth

Context7 provides current NextAuth API for correct implementation.

Debugging Library Issues

Section titled “Debugging Library Issues”
/fix "useEffect cleanup not working"

Context7 retrieves correct useEffect patterns from React docs.

Command Integration

Section titled “Command Integration”
CommandHow Context7 Helps
/featureAccurate library APIs for implementation
/researchCurrent documentation for analysis
/fixCorrect patterns for debugging library issues
/planAccurate estimates based on real API complexity

Best Practices

Section titled “Best Practices”

Specify Topics

Section titled “Specify Topics”

For focused results, use the topic parameter:

get-library-docs("/vercel/next.js", topic="app-router")

Use Correct Mode

Section titled “Use Correct Mode”
  • mode="code" — API references, code examples
  • mode="info" — Conceptual guides, architecture

Handle Pagination

Section titled “Handle Pagination”

If context is insufficient, try additional pages:

get-library-docs(..., page=2)

Troubleshooting

Section titled “Troubleshooting”

Library Not Found

Section titled “Library Not Found”

If resolve-library-id returns no results:

  • Check spelling
  • Try alternative names (e.g., “nextjs” vs “next.js”)
  • Some libraries may not be indexed

Outdated Results

Section titled “Outdated Results”

Context7 indexes popular libraries. Less common libraries may have delayed updates.

Resources

Section titled “Resources”