context7

Original：🇺🇸 English

Translated

A skill for retrieving the latest library documentation using Context7. Use when the user asks about how to use a library, requests code examples, or instructs to "use context7". Prevents hallucinations based on outdated training data and provides up-to-date API information.

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Sourcedotneet/claude-code-marketplace

Added on2026-03-01

NPX Install

npx skill4agent add dotneet/claude-code-marketplace context7

SKILL.md Content

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Context7

Overview

Context7 is a service that provides LLMs with the latest library documentation. It prevents hallucinations from outdated training data or non-existent APIs, enabling retrieval of version-specific accurate documentation and code examples.

When to Use

Use this skill in the following cases:

Explicit instruction: When the user instructs "use context7" or "check the latest documentation"
Library usage questions: When asked about how to use a specific library's API, hooks, or functions
Code example requests: When asked for code examples using a specific library
Version-specific information: When library information for a specific version is needed
Uncertain API information: When your knowledge might be outdated and latest information verification is needed

Workflow

Step 1: Resolve Library ID

First, obtain the Context7 ID for the target library.

API call:

bash

curl "https://context7.com/api/v2/libs/search?libraryName=LIBRARY_NAME&query=CONTEXT_QUERY" \
  -H "Authorization: Bearer $CONTEXT7_API_KEY"

Example:

bash

# Search for React library
curl "https://context7.com/api/v2/libs/search?libraryName=react&query=hooks" \
  -H "Authorization: Bearer $CONTEXT7_API_KEY"

Criteria for selecting from response:

```
trustScore
```
: Trust score (higher is better)
```
totalSnippets
```
: Number of available documents (more means richer information)
```
versions
```
: Verify that the required version is included

Step 2: Retrieve Documentation

Use the resolved library ID to retrieve specific documentation.

API call:

bash

curl "https://context7.com/api/v2/context?libraryId=LIBRARY_ID&query=SPECIFIC_QUERY" \
  -H "Authorization: Bearer $CONTEXT7_API_KEY"

Example:

bash

# Retrieve information about React's useEffect
curl "https://context7.com/api/v2/context?libraryId=/facebook/react&query=useEffect cleanup function" \
  -H "Authorization: Bearer $CONTEXT7_API_KEY"

Query best practices:

Use specific queries ("useEffect cleanup function" rather than "hooks")
Be clear about the purpose ("authentication middleware", "form validation", etc.)

Step 3: Respond to User

Respond to the user's question based on the retrieved documentation.

Information to include in the response:

Retrieved code examples
API explanations
Documentation source URLs (for reference)

Examples

Example 1: React Hook Usage

User: "How do I write a cleanup function with React's useEffect?"

Execution steps:

Library search:

libraryName=react

,

query=useEffect cleanup

Documentation retrieval:

libraryId=/facebook/react

,

query=useEffect cleanup function

Respond with the latest code examples and best practices

Example 2: Next.js Routing

User: "Use context7 to show me how to implement authentication middleware with Next.js App Router"

Execution steps:

Library search:

libraryName=next.js

,

query=middleware authentication

Documentation retrieval:

libraryId=/vercel/next.js

,

query=middleware authentication route protection

Respond with the latest App Router compatible middleware implementation

Example 3: Multiple Libraries Combination

User: "How to create a button component using TailwindCSS and shadcn/ui"

Execution steps:

Resolve IDs for each library
Retrieve documentation for both
Respond with a combined implementation example

Error Handling

Error	Solution
404 (Not Found)	Search again with a different library name (e.g., "nextjs" → "next.js")
429 (Rate Limit)	Wait a moment and retry
Empty response	Retry with a more general query

Resources

For detailed API specifications, see

references/api_reference.md

.

Endpoint details
Response field descriptions
Rate limit information
Error code list

context7

NPX Install

Tags

SKILL.md Content

Context7

Overview

When to Use

Workflow

Step 1: Resolve Library ID

Step 2: Retrieve Documentation

Step 3: Respond to User

Examples

Example 1: React Hook Usage

Example 2: Next.js Routing

Example 3: Multiple Libraries Combination

Error Handling

Resources