Context7

Overview

This skill enables retrieval of current documentation for software libraries and components by querying the Context7 API via curl. Use it instead of relying on potentially outdated training data.

Workflow

Step 1: Search for the Library

To find the Context7 library ID, query the search endpoint:

curl -s "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

To retrieve documentation, use the library ID from step 1:

curl -s "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 "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 "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 "https://context7.com/api/v2/libs/search?libraryName=nextjs&query=routing" | jq '.results[0].id'

Fetch app router documentation

curl -s "https://context7.com/api/v2/context?libraryId=/vercel/next.js&query=app+router&type=txt"

FastAPI dependency injection

Find FastAPI library ID

curl -s "https://context7.com/api/v2/libs/search?libraryName=fastapi&query=dependencies" | jq '.results[0].id'

Fetch dependency injection documentation

curl -s "https://context7.com/api/v2/context?libraryId=/fastapi/fastapi&query=dependency+injection&type=txt"

Tips

• Use 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 )

• No API key is required for basic usage (rate-limited)