Context7 CLI (ctx7)

ctx7

CLI for Context7 - query up-to-date library documentation and configure Context7 for AI coding agents.

Installation

# Run directly with npx (no install needed)
npx ctx7

# Or install globally
npm install -g ctx7

Quick Start

# Set up Context7 MCP for your coding agents
ctx7 setup

# Remove Context7 setup later
ctx7 remove

# Target a specific agent
ctx7 setup --cursor
ctx7 setup --claude
ctx7 setup --opencode
ctx7 setup --vscode
ctx7 setup --devin
ctx7 setup --copilot

Library Documentation

# Find a library
ctx7 library react
ctx7 library nextjs "app router"

# Get documentation
ctx7 docs /facebook/react "useEffect cleanup"
ctx7 docs /vercel/next.js "proxy"

Usage

Find a library

Resolve a library name to a Context7 library ID.

ctx7 library react
ctx7 library nextjs "app router setup"
ctx7 library prisma "database relations"

# Output as JSON
ctx7 library react --json

Query documentation

Fetch documentation for a specific library using its Context7 ID.

ctx7 docs /facebook/react "useEffect cleanup"
ctx7 docs /vercel/next.js "proxy authentication"
ctx7 docs /prisma/prisma "one-to-many relations"

# Output as JSON
ctx7 docs /facebook/react "hooks" --json

Setup

Configure Context7 MCP and a rule for your AI coding agents. Authenticates via OAuth, generates an API key, and writes the config.

# Interactive (prompts for agent selection)
ctx7 setup

# Target specific agents
ctx7 setup --cursor
ctx7 setup --claude
ctx7 setup --opencode
ctx7 setup --vscode
ctx7 setup --devin
ctx7 setup --copilot

# Use an existing API key instead of OAuth
ctx7 setup --api-key YOUR_API_KEY

# Use OAuth endpoint (IDE handles auth flow)
ctx7 setup --oauth

# Configure an on-premise deployment (pass the deployment root)
ctx7 setup --mcp --base-url https://context7.internal.example --codex

# When on-premise MCP auth is enabled, the CLI prompts for the key with hidden input
ctx7 setup --mcp \
  --base-url https://context7.internal.example \
  --codex

# For non-interactive automation, provide the key through the environment
CONTEXT7_API_KEY=ctx7op-... ctx7 setup --mcp --yes \
  --base-url https://context7.internal.example \
  --codex

# Configure for current project only (default is global)
ctx7 setup --project

# Skip prompts
ctx7 setup --yes

For a custom --base-url, setup discovers whether MCP authentication is enabled and writes either an anonymous HTTP entry or an Authorization: Bearer header. Interactive setup requests the personal key with masked input, keeping it out of shell history; --api-key and CONTEXT7_API_KEY remain available for automation. Setup uses bundled rule and skill content and skips the npm update check and telemetry, so after ctx7 is installed it contacts only the configured deployment. Enterprise environments can mirror ctx7 and its dependencies in an internal npm registry. Custom deployments support MCP HTTP setup; hosted OAuth, stdio, and CLI-query mode are not supported for on-premise targets.

Uninstall setup

Remove the Context7 setup written by ctx7 setup. By default this removes both MCP setup and CLI setup for the selected agent.

# Interactive
ctx7 remove

# Target specific agents
ctx7 remove --cursor
ctx7 remove --claude --project
ctx7 remove --vscode --project
ctx7 remove --devin --project
ctx7 remove --copilot --project

# Remove both setup modes explicitly
ctx7 remove --cursor --all

# Remove only one setup mode
ctx7 remove --cursor --cli
ctx7 remove --claude --mcp

If you installed the CLI itself globally with npm install -g ctx7, remove that separately with npm uninstall -g ctx7. If you use npx ctx7, there is no permanent CLI install to remove.

Authentication

Log in to access authenticated setup and higher documentation rate limits.

# Log in (opens browser for OAuth)
ctx7 login

# Check login status
ctx7 whoami

# Log out
ctx7 logout

Supported Clients

The CLI automatically detects which AI coding agents you have installed and configures Context7 for them:

Client	Skills Directory
Universal (Amp, Codex, Gemini CLI, GitHub Copilot, OpenCode + more)	.agents/skills/
Claude Code	.claude/skills/
Cursor	.cursor/skills/
VS Code	.agents/skills/
Devin	.devin/skills/
GitHub Copilot CLI	.agents/skills/
Antigravity	.agent/skills/

Disabling Telemetry

The CLI collects anonymous usage data to help improve the product. To disable telemetry, set the CTX7_TELEMETRY_DISABLED environment variable:

# For a single command
CTX7_TELEMETRY_DISABLED=1 ctx7 docs /facebook/react "useEffect examples"

# Or export in your shell profile (~/.bashrc, ~/.zshrc, etc.)
export CTX7_TELEMETRY_DISABLED=1

Learn More

Visit context7.com for documentation lookup and setup guides.