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Readme

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

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