context7

Q: How do I install context7?

Run npx skills add https://github.com/dotneet/claude-code-marketplace --skill context7 in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/context7/ (personal) or .claude/skills/context7/ (project).

by dotneetBackend & APIs

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 Prevents hallucinations based on outdated training data and provides up-to-date API information.

Installs: 411
Last 24h: —
Trending rank: —
Security: Not audited

Install

Works with every agent the skills CLI supports.

npx skills add https://github.com/dotneet/claude-code-marketplace --skill context7

01
Install
Run the command in your project. The CLI asks which agents to install for.
02
Describe the task
Ask your agent for something this skill covers. It loads context7 automatically when relevant.
03
Review the result
The agent follows the SKILL.md steps, scripts and references bundled with the skill.

SKILL.md

The instructions your agent reads when the skill is triggered.

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 It prevents hallucinations from outdated training data or non-existent APIs, enabling retrieval of version-specific accurate documentation and code examples.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Uncertain API information: When your knowledge might be outdated and latest information verification is needed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:

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

Example:

# 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:

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

Example:

# 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

FAQ

What does the context7 skill do?

How do I install context7?

Run npx skills add https://github.com/dotneet/claude-code-marketplace --skill context7 in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/context7/ (personal) or .claude/skills/context7/ (project).

Which AI agents can use context7?

Any agent that supports the open Agent Skills format (a folder with a SKILL.md file), including Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, Windsurf, Cline, OpenCode and more.

Is context7 safe to install?

No partner security audit is available yet. Skills can run commands and scripts, so read the SKILL.md and any bundled files before installing.

Who maintains context7?

It is published by dotneet in dotneet/claude-code-marketplace. It has 411 recorded installs.