context7

Name: context7
Author: intellectronica

Retrieve current documentation for software libraries and frameworks via the Context7 API. Two-step workflow: search for a library by name and topic, then fetch documentation using the returned library ID Supports documentation retrieval across hundreds of libraries (React, Next.js, FastAPI, Axios, and others) with plain-text or JSON response formats Query parameters accept specific topics for relevance ranking; results include library descriptions and snippet counts No API key required for basic usage, though rate-limited; plain-text output ( type=txt ) recommended for readability

INSTALLATION

npx skills add https://github.com/intellectronica/agent-skills --skill context7

Run in your project or agent environment. Adjust flags if your CLI version differs.

SKILL.md

$2a

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&#x26;query=TOPIC&#x26;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&#x26;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&#x26;query=useState&#x26;type=txt"

Next.js routing documentation

# Find Next.js library ID

curl -s "https://context7.com/api/v2/libs/search?libraryName=nextjs&#x26;query=routing" | jq '.results[0].id'

# Fetch app router documentation

curl -s "https://context7.com/api/v2/context?libraryId=/vercel/next.js&#x26;query=app+router&#x26;type=txt"

FastAPI dependency injection

# Find FastAPI library ID

curl -s "https://context7.com/api/v2/libs/search?libraryName=fastapi&#x26;query=dependencies" | jq '.results[0].id'

# Fetch dependency injection documentation

curl -s "https://context7.com/api/v2/context?libraryId=/fastapi/fastapi&#x26;query=dependency+injection&#x26;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)