@vedanth/context7

c7 — Context7 CLI

Get up-to-date, version-specific library docs from your terminal. No MCP client needed.

Built on top of Context7 — the same docs that power Cursor, Claude, and other AI coding assistants, now available as a simple CLI.

Note: This package is published as @vedanth/context7 on npm. The unscoped context7 on npm is a different, unrelated project.

Why?

Your AI coding assistant hallucinates APIs that don't exist. Context7's MCP fixes that — but only if you're inside an MCP-compatible editor.

c7 gives you the same docs anywhere:

• Pipe into agent prompts before they start coding
• Quick lookups without leaving the terminal
• Feed accurate docs into any LLM, any workflow

Install

npx @vedanth/context7               # Run directly (no install)
npm install -g @vedanth/context7     # Or install globally

Usage

# Find a library
c7 resolve nextjs

# Get docs (auto-resolves library name)
c7 docs nextjs "app router"
c7 docs react "server components" --tokens 10000

# Shorthand — skip the "docs" command
c7 react hooks
c7 express middleware
c7 tailwindcss "dark mode"

# Use exact Context7 ID (from resolve)
c7 docs /vercel/next.js "image optimization"

# Pipe into anything
c7 react hooks | pbcopy
c7 express middleware >> prompt.txt
c7 docs nextjs "api routes" | llm "summarize these docs"

Commands

Command	Description
c7 resolve <library>	Find Context7 library IDs for a search term
c7 docs <library> [topic]	Get docs (auto-resolves name to best match)
c7 <library> [topic]	Shorthand for c7 docs

Options

Flag	Description
--tokens <n>	Max tokens to return (default: 5000)
--api-key <key>	Context7 API key (or set CONTEXT7_API_KEY env)
--json	Raw JSON output (resolve only)

API Key (optional)

Works without an API key for basic usage. For higher rate limits:

• Get a key at context7.com/dashboard
• Set it: export CONTEXT7_API_KEY=your-key

Use Cases

Feed docs into coding agents:

DOCS=$(c7 nextjs "app router middleware" --tokens 8000)
claude "Build a Next.js middleware that redirects. Use these docs:\n$DOCS"

Quick API lookup:

c7 prisma "findMany" --tokens 3000

Compare versions:

c7 docs /vercel/next.js "image" --tokens 5000   # Latest
c7 docs /websites/nextjs_15 "image"              # v15 specific

How It Works

Context7 indexes documentation from source repos and official docs. The CLI queries their API to get relevant, version-specific code snippets and API references — the same data that powers the MCP server used by Cursor, Claude Code, and other AI editors.

Credits

Powered by Context7 by Upstash.

c7 vs other Context7 packages

Package	What it is
@vedanth/context7 (this)	CLI tool — library docs in your terminal
@upstash/context7	Official MCP server for AI editors
context7 (unscoped)	Different project, not related

License

MIT