Context7

82/100
MCP Server
by Upstash@upstash
MIT

Pulls version-specific library documentation and code examples directly into your LLM's context window, eliminating hallucinated APIs and outdated code suggestions from stale training data.

Reviewed on v0.3.13 - latest is v0.5.6. Scores may not reflect the current version.

Review Scores

Security28/35Maintain.28/35Usability26/30
Security28/35
Maintain.28/35
Usability26/30
Evidence:
medium
Reviewed Jun 14, 2026
Newer version available

Reviewed Version

0.3.13

Latest Version

0.5.6(drift)

Newer version available

The review covers 0.3.13; the latest version is 0.5.6. Recheck changes before installing.

Scores reflect the version reviewed and may change with updates.

Live verification

✗ FAILED @0.5.6Jul 25, 2026

The server failed to start during verification.

Failed in two consecutive checks. The package may be unmaintained — consider alternatives.

Overview

When to Use

When NOT to Use

Configuration

Add to your Claude Desktop config:

npx ctx7 setup

Troubleshooting