Context7

Overview

The Context7 skill enables retrieval of current documentation for software libraries and components by querying the Context7 API via curl. Preferred when training data may be outdated.

Workflow

Step 1: Search for the Library

Find the Context7 library ID by querying the search endpoint:

curl -s -H "Authorization: Bearer $CONTEXT7_API_KEY" "https://context7.com/api/v2/libs/search?libraryName=LIBRARY_NAME&query=TOPIC" | jq '.results[0]'

Parameters:

• libraryName (required): The library name to search for (e.g., “react”, “nextjs”, “fastapi”, “axios”)
• query (required): A description of the topic for relevance ranking

Response fields:

• id: Library identifier for the context endpoint (e.g., /websites/react_dev_reference)
• title: Human-readable library name
• description: Brief description of the library
• totalSnippets: Number of documentation snippets available

Step 2: Fetch Documentation

Retrieve documentation with the library ID from step 1:

curl -s -H "Authorization: Bearer $CONTEXT7_API_KEY" "https://context7.com/api/v2/context?libraryId=LIBRARY_ID&query=TOPIC&type=txt"

Parameters:

• libraryId (required): The library ID from search results
• query (required): The specific topic to retrieve documentation for
• type (optional): Response format – json (default) or txt (plain text, more readable)

Examples

React hooks documentation

# Find React library ID
curl -s -H "Authorization: Bearer $CONTEXT7_API_KEY" "https://context7.com/api/v2/libs/search?libraryName=react&query=hooks" | jq '.results[0].id'
# Returns: "/websites/react_dev_reference"

# Fetch useState documentation
curl -s -H "Authorization: Bearer $CONTEXT7_API_KEY" "https://context7.com/api/v2/context?libraryId=/websites/react_dev_reference&query=useState&type=txt"

Next.js routing documentation

# Find Next.js library ID
curl -s -H "Authorization: Bearer $CONTEXT7_API_KEY" "https://context7.com/api/v2/libs/search?libraryName=nextjs&query=routing" | jq '.results[0].id'

# Fetch app router documentation
curl -s -H "Authorization: Bearer $CONTEXT7_API_KEY" "https://context7.com/api/v2/context?libraryId=/vercel/next.js&query=app+router&type=txt"

FastAPI dependency injection

# Find FastAPI library ID
curl -s -H "Authorization: Bearer $CONTEXT7_API_KEY" "https://context7.com/api/v2/libs/search?libraryName=fastapi&query=dependencies" | jq '.results[0].id'

# Fetch dependency injection documentation
curl -s -H "Authorization: Bearer $CONTEXT7_API_KEY" "https://context7.com/api/v2/context?libraryId=/fastapi/fastapi&query=dependency+injection&type=txt"

Tips

• Prefer type=txt for more readable output
• Use jq to filter and format JSON responses
• Be specific with the query parameter to improve relevance ranking
• If the first search result is not correct, check additional results in the array
• URL-encode query parameters containing spaces (use + or %20)