context7

Name: context7 Review
Item: context7
Rating: 4.5
Author: Aaron Matthews

Skill Documents & Content Recommended

Works inClaude Code

Recommended Scanned — metadata only

Keeps LLM code generation accurate by serving up-to-date documentation, reducing hallucinations and boilerplate errors in AI-assisted development.

Pulls up-to-date, version-specific library documentation and code examples straight from the source into your prompt, so generated code stops relying on stale training data or hallucinated APIs. Works in two modes: a CLI + skill (ctx7 commands, no MCP required) or a Context7 MCP server. Add 'use context7' to a prompt or let the installed skill trigger automatically.

Auto-complete API calls with current library signatures
Generate accurate code examples for versioned dependencies
Reduce context window bloat in multi-file LLM prompts

60,909 starsMIT (commercial OK)FreeQuick setup

Why it matters

Keeps LLM code generation accurate by serving up-to-date documentation, reducing hallucinations and boilerplate errors in AI-assisted development.

Best for

Engineering teams using Claude or other LLMs for code generation who need real-time API/library reference without manual context injection.

Works in

Claude Code Claude Cowork Claude Chat

Source

https://github.com/upstash/context7

By upstash

How to Get It

Option 1: Claude Desktop App (Code Mode)Click the + button next to the prompt box → Plugins → Add plugin. Search and click Install. Skills work in Claude Code only.

Option 2: Paste into Claude CodeCopy the command below and paste it into your conversation. Claude will install it.

Command

npx ctx7 setup --claude

Tip: Paste this into a Claude Code conversation. Verify command matches your Claude Code version.

First thing to try

After installing, paste this into Claude:

Help me auto-complete API calls with current library signatures

PrerequisitesNode.js 18+. Free Context7 API key recommended for higher rate limits (context7.com/dashboard).CostFree

Trust Signals Auto-scanned

Stars60,909Contributors132Last updated2026-08-18LicenseMIT (OK for commercial use)Known CVEsNone foundSources: GitHub Advisory Database + OSV.dev · Scanned 2026-08-18 · scanner v1

Community Pulse Active

Discussed on Hacker News, Reddit

Am I missing something with the Context7 MCP hype? — Reddit · 95 pts
Context7 just massively cut free limits — Reddit · 75 pts
Do you even need Context7 ? — Reddit · 25 pts

3 mentions across 1 sources

Reviewer notes

Auto-scanned review. These are observations, not a security certification.

catalog_hygiene stale-eval refresh: Scored from trust signals (evidence-eval-v1): 60,909 GitHub stars; 132 contributors; last commit 0d ago; license MIT.

Things to check

Scanned, not hands-on tested — this entry was auto-scanned from public metadata (GitHub metrics, license, security flags). No reviewer has run it, and no tool-specific limitations have been documented yet.

How to evaluate tools before deploying →

Data shown here comes from public APIs and automated scanning. Reviewer notes reflect one person's experience. This is not a security certification or legal recommendation. Always evaluate tools according to your own organization's policies.

Evaluation Scores

Evaluation

Ease of Use

4/5

Versatility

5/5

Reliability

5/5

Security

4/5

Overall score4.50 / 5.00 RecommendedEvaluatedAug 2026

catalog_hygiene stale-eval refresh: Scored from trust signals (evidence-eval-v1): 60,909 GitHub stars; 132 contributors; last commit 0d ago; license MIT.

← Back to the Claude Observatory