Context7

io.github.upstashPublished by GitHub account upstashv4.5.1Updated Nov 7, 2026

Up-to-date docs for AI agents

VerifiedStreamable HTTPWeb executableKnowledge & MemoryDeveloper Tools

Overview

AI-generated overview

Fetches current, version-specific documentation and code examples for libraries, frameworks and APIs into the assistant's context.

What you can do
  • Resolve a library or package name to a Context7 library ID, ranked by the user's question
  • Retrieve up-to-date documentation and code examples for a library ID, optionally ranking examples in a preferred language
  • Cover API syntax, configuration, version migration, setup steps and CLI usage for libraries and cloud services
When to use it
Use when the assistant answers questions about a library, framework, SDK, API or CLI tool and training data may be stale, or when porting code between libraries or versions. The server itself says not to use it for refactoring, debugging or reviewing code that does not depend on a library API.
Requirements
Either the remote endpoint at mcp.context7.com or a local process via the npm package @upstash/context7-mcp (stdio) or the mcpb bundle. An API key is recommended for higher rate limits, passed as CONTEXT7_API_KEY or an Authorization header (Bearer key or raw key). The ctx7 CLI setup requires Node.js 22.13 or newer.
Before you install
The API key is a secret sent to Context7; the setup command authenticates via OAuth and generates one. Documentation is community-contributed, so accuracy, completeness and security are not guaranteed, and listed projects are maintained by their owners rather than Context7. The backend, parsing and crawling components are private.

Installation

In SourceWeft

  1. Open Context7 in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/io.github.upstash%2Fcontext7/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "context7": {
      "type": "http",
      "url": "https://mcp.context7.com/mcp"
    }
  }
}

README

[Cover]

[Add to Claude] [Add to ChatGPT] [Add to Cursor] [Add to VS Code]

Context7 - Up-to-date Docs for AI Agents

[Website] [NPM Version] [MIT licensed]

[繁體中文] [简体中文] [日本語] [한국어 문서] [Documentación en Español] [Documentation en Français] [Documentação em Português (Brasil)] [Documentazione in italiano] [Dokumentasi Bahasa Indonesia] [Dokumentation auf Deutsch] [Документация на русском языке] [Українська документація] [Türkçe Doküman] [Arabic Documentation] [Tiếng Việt]

❌ 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.

txt
Create a Next.js proxy that checks for a valid JWT in cookiesand redirects unauthenticated users to `/login`. use context7
txt
Configure a Cloudflare Worker script to cacheJSON API responses for five minutes. use context7
txt
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.

bash
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.

txt
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:

txt
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:

txt
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 for
    • language (optional): The programming language you write in, used to rank code examples in that language first

More Documentation

Packages

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:

📺 Context7 In Media

📄 License

MIT

Source: README.md at commit 078c0c7

Tools

2

resolve-library-id

Resolve Context7 Library ID

Resolves a package/product name to a Context7-compatible library ID and returns matching libraries. You MUST call this function before 'Query Documentation' tool to obtain a valid Context7-compatible library ID UNLESS the user explicitly provides a library ID in the format '/org/project' or '/org/project/version' in their query. Each result includes: - Library ID: Context7-compatible identifier (format: /org/project) - Name: Library or package name - Description: Short summary - Code Snippets: Number of available code examples - Source Reputation: Authority indicator (High, Medium, Low, or Unknown) - Benchmark Score: Quality indicator (100 is the highest score) - Versions: List of versions if available. Use one of those versions if the user provides a version in their query. The format of the version is /org/project/version. For best results, select libraries based on name match, source reputation, snippet coverage, benchmark score, and relevance to your use case. Selection Process: 1. Analyze the query to understand what library/package the user is looking for 2. Return the most relevant match based on: - Name similarity to the query (exact matches prioritized) - Description relevance to the query's intent - Documentation coverage (prioritize libraries with higher Code Snippet counts) - Source reputation (consider libraries with High or Medium reputation more authoritative) - Benchmark Score: Quality indicator (100 is the highest score) Response Format: - Return the selected library ID in a clearly marked section - Provide a brief explanation for why this library was chosen - If multiple good matches exist, acknowledge this but proceed with the most relevant one - If no good matches exist, clearly state this and suggest query refinements For ambiguous queries, request clarification before proceeding with a best-guess match. IMPORTANT: Do not call this tool more than 3 times per question. If you cannot find what you need after 3 calls, use the best result you

ParametersqueryrequiredlibraryNamerequired

query-docs

Query Documentation

Retrieves and queries up-to-date documentation and code examples from Context7 for any programming library or framework. You must call 'Resolve Context7 Library ID' tool first to obtain the exact Context7-compatible library ID required to use this tool, UNLESS the user explicitly provides a library ID in the format '/org/project' or '/org/project/version' in their query. Do not call this tool more than 3 times per question. If you know the programming language the user is working in, pass it as `language` so the results match their setup.

ParametersqueryrequiredlanguagelibraryIdrequired

Version history

10
  1. v4.5.1LatestNov 7, 2026
  2. v4.5.0Nov 3, 2026
  3. v4.4.4Oct 19, 2026
  4. v4.4.3Oct 19, 2026
  5. v4.4.2Oct 15, 2026
  6. v4.4.1Oct 13, 2026
  7. v4.3.0Oct 9, 2026
  8. v4.2.0Oct 7, 2026
  9. v4.1.2Oct 7, 2026
  10. v4.1.1Sep 16, 2026

Score

100% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 daysRequired25 pts
  • Auth declaredRequired10 pts
  • Tools listedRequired15 pts
  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts
  • License10 pts