Context7

An MCP server that fetches current, version-specific documentation and code examples for thousands of libraries — ending hallucinated APIs from stale training data.

Context7 solves one of the most common failure modes in AI coding: the model confidently using an API that changed two versions ago. Add "use context7" to a prompt (or let Claude call it automatically) and it pulls current, version-specific documentation and real code examples straight into context.

It covers thousands of popular libraries and frameworks and is one of the most-installed MCP servers in the ecosystem.

Install (Claude Code): claude mcp add context7 npx @upstash/context7-mcp

Categories:

MCPs

Tags:

context developer-tools documentation mcp

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