MCP servers

Context7

An LLM confidently using a library API that was deprecated last year.

Install

npx ctx7 setup

source: Upstash
licence: MIT
verified: 2026-08-22
link: https://github.com/upstash/context7

An MCP server that injects current, version-specific library documentation into an LLM's context at prompt time. It replaces whatever the model memorized in training with what the docs say today.

We reach for it whenever generated code touches a fast-moving framework.

Verified against the GitHub API on 2026-08-22: MIT, 61,094 stars.