Context7

Name: Context7
Author: upstash

by upstashversion 4.5.0i★ 64,224iComputer or cloud

Registry nameio.github.upstash/context7

Overview

Written by PopNx MCP from the maker’s information

Feeds AI the latest docs for libraries and frameworks before it answers, so code it writes does not use outdated, removed functions.

Description from the maker (original English)

Up-to-date docs for AI agents

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

User voiceiNo reviews yetReviews open together with accounts in a later step
Our basic checksi4 of 4 passedChecked from public information; code not scanned yet
UsageiWidely used★ 64,224

What you can do with it

Good for: Anyone who asks AI to write code

Try asking your AI

Build a login page with the latest Next.js; check the docs via context7 first
How has the latest Tailwind setup changed?
Which functions in this code are deprecated?

Written by PopNx MCP from the maker’s information

Install

Pick the AI app you use, then copy the settings.

You need

Runs in the cloudNothing to install; it connects over the internet
npmNode.js installed (for the npx command)

Claude DesktopClaude CodeCursorVS Code

Open Claude Desktop → Settings → Connectors → Add custom connector, and paste this address

https://mcp.context7.com/mcp

Runs on your computer

Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json

{
  "mcpServers": {
    "context7": {
      "command": "npx",
      "args": [
        "-y",
        "@upstash/context7-mcp"
      ],
      "env": {
        "CONTEXT7_API_KEY": "your-value"
      }
    }
  }
}

Run this in your terminal

claude mcp add --transport http context7 https://mcp.context7.com/mcp --header 'Authorization: your-value'

Runs on your computer

Run this in your terminal

claude mcp add context7 --env CONTEXT7_API_KEY=your-value -- npx -y @upstash/context7-mcp

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "context7": {
      "url": "https://mcp.context7.com/mcp",
      "headers": {
        "Authorization": "your-value"
      }
    }
  }
}

Runs on your computer

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "context7": {
      "command": "npx",
      "args": [
        "-y",
        "@upstash/context7-mcp"
      ],
      "env": {
        "CONTEXT7_API_KEY": "your-value"
      }
    }
  }
}

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "context7": {
      "type": "http",
      "url": "https://mcp.context7.com/mcp",
      "headers": {
        "Authorization": "your-value"
      }
    }
  }
}

Runs on your computer

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "context7": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@upstash/context7-mcp"
      ],
      "env": {
        "CONTEXT7_API_KEY": "your-value"
      }
    }
  }
}

Values you fill in

CONTEXT7_API_KEY secret env
API key for authentication
Authorization secret HTTP header
API key for authentication. Accepts "Bearer " or the raw key.

Values marked secret are keys to your account. Never share them or paste them into a chat.

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 5, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account upstash, which owns the repo
✓ Pass
Still maintained
Code last changed today
✓ Pass
Has a licence
Uses MIT
✓ Pass
Endpoint responds
Responded in 786 ms (HTTP 200)
– Not applicable
Sign-in with OAuth
No sign-in needed
… Not checked yet
No hidden instructions in tool descriptions
Needs the server’s tool list first; this check starts in the next step

Compared with others in Search & AI memoryi

More stars than 100% of the other 10 servers in this category
Published to the registry more recently than 80% of the other 10 servers in this category
Basic checks equal to or better than 100% of the other 10 servers in this category

Compared only with servers in this prototype, not the whole registry.

Common questions

Is Context7 safe?

It passed 4 of 4 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

You need to fill in: CONTEXT7_API_KEY, Authorization

Does it run on my computer or in the cloud?

Either way works: install it on your computer or connect to the cloud version.

Is it still maintained?

The GitHub repo last changed today, and the latest version (4.5.0) reached the registry 2 days ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT in developer mode.

What can I use instead?

In the same category: Codebase Memory, Exa, Tavily MCP

Alternatives

Servers in the same category from other makers, sorted by stars.

Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

Codebase Memory

by DeusData

Codebase knowledge graph for AI agents — 162 languages, sub-ms queries, 99% fewer tokens.

Runs on your computer★ 48,148MITUpdated 19 days ago

Exa

by exa-labs

Connect AI agents to Exa for web search, content fetching, and multi-step research.

Runs in the cloud★ 5,213MITUpdated 43 days ago

Tavily MCP

by tavily-ai

MCP server for advanced web search using Tavily

Runs on your computer★ 2,478MITUpdated 9 months ago

README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

Context7 - Up-to-date Docs for AI Agents

-purple-purple))](./i18n/README.pt-BR.md)

❌ 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 ctx7 CLI 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 →](https://context7.com/docs/resources/all-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 : Searches the Context7 index by library name and returns matching libraries with their IDs.
ctx7 docs : 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 for
language (optional): The programming language you write in, used to rank code examples in that language first

Packages

@upstash/context7-mcp - MCP server
ctx7 - 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:

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🌐 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 BE

Only the beginning is shown; read the rest in the repo

Context7

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Runs on your computer

Runs on your computer

Runs on your computer

Runs on your computer

Values you fill in

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Compared with others in Search & AI memoryi

Common questions

Alternatives

Codebase Memory

Exa

Tavily MCP

README from the maker

Context7 - Up-to-date Docs for AI Agents

❌ Without Context7

✅ With Context7

Installation

Important Tips

Use Library Id

Specify a Version

Add a Rule

Available Tools

CLI Commands

MCP Tools

More Documentation

Packages

Disclaimer

🤝 Connect with Us

📺 Context7 In Media