Connected Context7 Module

Connect Claude Code to Context7 for fetching up-to-date library documentation and code examples directly from authoritative sources during development.

When to Use This MCP Server

Connect this server when you need to:

• Access current library documentation, API references, and code examples for frameworks and packages without searching the web manually
• Get version-specific documentation for dependencies in your project, ensuring code examples match the exact library version you are using
• Resolve ambiguity in library APIs by retrieving authoritative documentation that may be more current than the AI model's training data

Consider alternatives when:

• You need documentation for internal or proprietary libraries that are not indexed by Context7's public documentation aggregation
• The library you are working with has comprehensive inline type definitions and JSDoc that provide sufficient context within your IDE

Quick Start

Configuration

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name: connected-context7-module
type: mcp
category: devtools

Example Connection

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claude mcp:connect connected-context7-module

Available Tools

resolve-library:    Find the Context7 identifier for a library by name or package registry ID
get-docs:           Fetch documentation content for a specific library with optional topic filter
search-examples:    Search for code examples demonstrating specific API usage patterns
get-api-reference:  Retrieve detailed API reference with function signatures and parameters
list-versions:      List available documentation versions for a library

Core Concepts

Context7 Documentation Platform Overview

Aspect	Details
Transport	stdio-based MCP server connecting to Context7 cloud documentation index
Source	Aggregated from official docs sites, READMEs, and API references
Coverage	Thousands of open-source libraries across JavaScript, Python, Go, Rust, and more
Freshness	Documentation indexed and updated regularly from source repositories
Versioning	Version-specific documentation for tracking breaking changes across releases

Context7 MCP Architecture

Claude Code IDE
    |
    v
[MCP Client] --stdio--> [Context7 MCP Server]
                              |
                              v
                     [Context7 Cloud API]
                              |
                    +---------+---------+
                    |         |         |
                    v         v         v
              [Library   [API       [Code
              Docs]     Reference]  Examples]
                    \         |         /
                    [Documentation Index]
                    (Versioned & Searchable)

Configuration

Parameter	Type	Default	Description
context7_api_key	string	optional	API key for authenticated access with higher rate limits
default_language	string	auto-detect	Preferred programming language for documentation and examples
max_tokens	integer	5000	Maximum documentation content length in tokens per response
include_examples	boolean	true	Include runnable code examples alongside API documentation
preferred_version	string	latest	Default library version when not explicitly specified in queries

Best Practices

1. Resolve Libraries Before Querying - Always use resolve-library first to find the correct Context7 identifier. Library names can be ambiguous (e.g., "express" vs "@types/express"), and resolving ensures you get documentation for the right package.

2. Pin Documentation to Your Version - Use list-versions to find documentation matching your project's dependency version, then set preferred_version accordingly. This prevents confusion from API changes between your version and the latest release.

3. Search Examples for Implementation Patterns - When you know what you want to accomplish but not the exact API, use search-examples with descriptive queries. Code examples often provide more actionable guidance than raw API reference documentation.

4. Combine with Type Definitions - Use Context7 documentation alongside your project's TypeScript type definitions. Documentation provides usage context and best practices that type signatures alone cannot convey.

5. Set Appropriate Token Limits - Increase max_tokens for comprehensive documentation retrieval or decrease it for quick function signature lookups. Smaller limits produce faster responses for simple queries.

Common Issues

1. Library Not Found in Context7 - The library may not be indexed yet or may use a different name. Try searching by the npm/PyPI package name rather than the common name, and check for alternative spellings or organization-scoped names.

2. Documentation Outdated for Latest Release - Very recent library releases may not be indexed immediately. Check list-versions to see the most recent indexed version, and fall back to the library's official docs site for bleeding-edge changes.

3. Rate Limit Exceeded - Unauthenticated requests have lower rate limits. Configure a context7_api_key for higher quotas, or reduce the frequency of documentation queries during rapid development iterations.