Fetches up-to-date, version-specific library documentation and code examples into an AI coding agent's context.
Also known as upstash/context7, @upstash/context7-mcp
- Stars
- 64,719
- Tools
- 2
- Downloads, 30 days
- 196,958
- Latest version
- 4.7.0
- Last commit
- Nov 13, 2026
- License
- MIT
What is Context7 MCP?
Context7 fetches up-to-date, version-specific library documentation and code examples into an AI coding agent's context. It exposes 2 tools, such as resolve-library-id, query-docs.
Summary generated from the project's README
About Context7 MCP server
Developers using AI coding agents can provide their models with up-to-date, version-specific library documentation and code examples through Context7. This tool prevents common issues like hallucinated APIs or outdated code generation by pulling information directly from the source. It is designed to work within environments like Claude, Cursor, and ChatGPT, helping agents avoid relying on generic or year-old training data.
Users can integrate the service using the ctx7 CLI or by registering the MCP server. When using the MCP mode, agents can natively call tools like resolve-library-id to find specific library IDs and query-docs to retrieve relevant documentation. While a free API key from the dashboard is recommended to increase rate limits, the server can be configured manually via a specific URL with an Authorization header. The system also supports a slash syntax, such as /supabase/supabase, to allow users to bypass library matching and go straight to the documentation.
What you can do with it
- 1Retrieve version-specific documentationAsk the agent to find documentation for a specific version of a framework like Next.js 16.
Written from the project's README. Every use case is checked against a quote from it.
How to install Context7 MCP
Formats verified 10 Nov 2026Install Context7 MCP in Claude Code
$ claude mcp add --env CONTEXT7_API_KEY=<YOUR_CONTEXT7_API_KEY> context7 -- npx -y @upstash/context7-mcpInstall Context7 MCP in Cursor
~/.cursor/mcp.json
{
"mcpServers": {
"context7": {
"command": "npx",
"args": [
"-y",
"@upstash/context7-mcp"
],
"env": {
"CONTEXT7_API_KEY": "<YOUR_CONTEXT7_API_KEY>"
}
}
}
}Install Context7 MCP in VS Code
.vscode/mcp.json
{
"servers": {
"context7": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@upstash/context7-mcp"
],
"env": {
"CONTEXT7_API_KEY": "<YOUR_CONTEXT7_API_KEY>"
}
}
}
}Install Context7 MCP in Claude Desktop
claude_desktop_config.json
{
"mcpServers": {
"context7": {
"command": "npx",
"args": [
"-y",
"@upstash/context7-mcp"
],
"env": {
"CONTEXT7_API_KEY": "<YOUR_CONTEXT7_API_KEY>"
}
}
}
}Install Context7 MCP in Codex
~/.codex/config.toml
[mcp_servers.context7] command = "npx" args = ["-y", "@upstash/context7-mcp"] [mcp_servers.context7.env] CONTEXT7_API_KEY = "<YOUR_CONTEXT7_API_KEY>"
Install Context7 MCP in Gemini CLI
~/.gemini/settings.json
{
"mcpServers": {
"context7": {
"command": "npx",
"args": [
"-y",
"@upstash/context7-mcp"
],
"env": {
"CONTEXT7_API_KEY": "<YOUR_CONTEXT7_API_KEY>"
}
}
}
}Context7 MCP tools 2
Detected from the READMEresolve-library-idquery-docs
| resolve-library-id | — | |
| query-docs | — |
Configuration
CONTEXT7_API_KEYSecretAPI key for authentication
CONTEXT7_API_KEYSecretAPI key for authentication
| Name | Description | |
|---|---|---|
| CONTEXT7_API_KEY | API key for authentication | Secret |
| CONTEXT7_API_KEY | API key for authentication | Secret |
Automated checks
Ran Nov 11, 2026Full report →Passed our automated checks. That is not a security audit: read the code and give the server the narrowest access it needs. How checks work
- Source repository linked and reachablePass
- Open source license (OSI)Pass
- Commit or release in the last yearPass
- Package name not close to a popular packagePass
- Remote endpoint uses HTTPSPass
- Destructive tools are labelledPass
- No hidden instructions to the modelPass
- No critical advisory in the package or its dependenciesPass
README
View on GitHub
Context7 - Up-to-date Docs for AI Agents
-purple){kind=icon}
❌ Without Context7
LLMs rely on outdated or generic information about the libraries you use. You get:
- ❌ Code examples are outdated and based on year-old training data
- ❌ Hallucinated APIs that don't even exist
- ❌ Generic answers for old package versions
✅ With Context7
Context7 pulls up-to-date, version-specific documentation and code examples straight from the source — and gives them to your coding agent.
Create a Next.js proxy that checks for a valid JWT in cookies
and redirects unauthenticated users to `/login`. use context7
Configure a Cloudflare Worker script to cache
JSON API responses for five minutes. use context7
Show me the Supabase auth API for email/password sign-up.
Context7 fetches up-to-date code examples and documentation right into your coding agent's context. No tab-switching, no hallucinated APIs that don't exist, no outdated code generation.
Works in two modes:
- CLI + Skills — installs a skill that guides your agent to fetch docs using
ctx7CLI commands (no MCP required) - MCP — registers a Context7 MCP server so your agent can call documentation tools natively
Installation
[!NOTE] API Key Recommended: Get a free API key at context7.com/dashboard for higher rate limits.
Set up Context7 for your coding agents with a single command. The ctx7 CLI requires Node.js 22.13 or newer.
npx ctx7 setup
Authenticates via OAuth, generates an API key, and installs the appropriate skill. You can choose between CLI + Skills or MCP mode. Use --cursor, --claude, or --opencode to target a specific agent.
To remove the generated setup later, run npx ctx7 remove. If you globally installed the CLI with npm install -g ctx7, remove that package separately with npm uninstall -g ctx7.
To configure manually, use the Context7 server URL https://mcp.context7.com/mcp with your MCP client and pass your API key via the Authorization: Bearer YOUR_API_KEY header. See the link below for client-specific setup instructions.
Manual Installation / Other Clients →
Important Tips
Use Library Id
If you already know exactly which library you want to use, add its Context7 ID to your prompt. That way, Context7 can skip the library-matching step and directly retrieve docs.
Implement basic authentication with Supabase. use library /supabase/supabase for API and docs.
The slash syntax tells Context7 exactly which library to load docs for.
Specify a Version
To get documentation for a specific library version, just mention the version in your prompt:
How do I set up a Next.js 16 proxy? use context7
Context7 will automatically match the appropriate version.
Add a Rule
If you installed via ctx7 setup, a skill is configured automatically that triggers Context7 for library-related questions. To set up a rule manually instead, add one to your coding agent:
- Cursor:
Cursor Settings > Rules - Claude Code:
CLAUDE.md - Or the equivalent in your coding agent
Example rule:
Always use Context7 when I need library/API documentation, code generation, setup or configuration steps without me having to explicitly ask.
Available Tools
CLI Commands
ctx7 library <name> <query>: Searches the Context7 index by library name and returns matching libraries with their IDs.ctx7 docs <libraryId> <query>: Retrieves documentation for a library using a Context7-compatible library ID (e.g.,/mongodb/docs,/vercel/next.js).
MCP Tools
resolve-library-id: Resolves a general library name into a Context7-compatible library ID.query(required): The user's question or task (used to rank results by relevance)libraryName(required): The name of the library to search for
query-docs: Retrieves documentation for a library using a Context7-compatible library ID.libraryId(required): Exact Context7-compatible library ID (e.g.,/mongodb/docs,/vercel/next.js)query(required): The question or task to get relevant documentation forlanguage(optional): The programming language you write in, used to rank code examples in that language first
More Documentation
- CLI Reference - Full CLI documentation
- MCP Clients - Manual MCP installation for 30+ clients
- Adding Libraries - Submit your library to Context7
- Troubleshooting - Common issues and solutions
- API Reference - REST API documentation
- Developer Guide - Run Context7 MCP locally
Packages
@upstash/context7-mcp- MCP serverctx7- CLI@upstash/context7-sdk- TypeScript SDK@upstash/context7-tools-ai-sdk- Vercel AI SDK tools@upstash/context7-pi- pi.dev extension
Disclaimer
1- Context7 projects are community-contributed and while we strive to maintain high quality, we cannot guarantee the accuracy, completeness, or security of all library documentation. Projects listed in Context7 are developed and maintained by their respective owners, not by Context7. If you encounter any suspicious, inappropriate, or potentially harmful content, please use the "Report" button on the project page to notify us immediately. We take all reports seriously and will review flagged content promptly to maintain the integrity and safety of our platform. By using Context7, you acknowledge that you do so at your own discretion and risk.
2- This repository hosts the MCP server’s source code. The supporting components — API backend, parsing engine, and crawling engine — are private and not part of this repository.
🤝 Connect with Us
Stay updated and join our community:
- 📢 Follow us on X for the latest news and updates
- 🌐 Visit our Website
- 💬 Join our Discord Community
📺 Context7 In Media
- Better Stack: "Free Tool Makes Cursor 10x Smarter"
- Cole Medin: "This is Hands Down the BEST MCP Server for AI Coding Assistants"
- Income Stream Surfers: "Context7 + SequentialThinking MCPs: Is This AGI?"
- Julian Goldie SEO: "Context7: New MCP AI Agent Update"
- JeredBlu: "Context 7 MCP: Get Documentation Instantly + VS Code Setup"
- Income Stream Surfers: "Context7: The New MCP Server That Will CHANGE AI Coding"
- AICodeKing: "Context7 + Cline & RooCode: This MCP Server Makes CLINE 100X MORE EFFECTIVE!"
- Sean Kochel: "5 MCP Servers For Vibe Coding Glory (Just Plug-In & Go)"
📄 License
MIT
Context7 MCP questions
How do I add Context7 MCP to Claude Code?
Run claude mcp add --env CONTEXT7_API_KEY=<YOUR_CONTEXT7_API_KEY> context7 -- npx -y @upstash/context7-mcp in your terminal. Add --scope user to make it available in every project.
How do I add Context7 MCP to Cursor?
Open ~/.cursor/mcp.json and add the server under mcpServers, using the Cursor config shown in the install section above.
What tools does Context7 MCP provide?
It exposes 2 tools, including resolve-library-id, query-docs.
What does Context7 do for AI coding agents?
It pulls current, version-specific documentation and code examples from the source and injects them into your agent's context, reducing outdated or hallucinated APIs.
How do I install Context7?
Run the ctx7 setup command, which requires Node.js 22.13 or newer and lets you choose CLI + Skills or MCP mode.
Which MCP tools does Context7 provide?
It provides resolve-library-id to turn a library name into a Context7 ID and query-docs to retrieve documentation for that ID.
How do I get documentation for a specific library version?
Mention the version in your prompt and Context7 will match the appropriate version automatically.
How do I authenticate with the Context7 MCP server?
Get a free API key from the dashboard and pass it in the Authorization Bearer header when connecting to the server URL.