Context7 MCP - Up-to-date Code Docs For Any Prompt

 

        

❌ 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LLMs rely on outdated or generic information about the libraries you use.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- ❌ Code examples are outdated and based on year-old training data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 don't even exist
- ❌ Generic answers for old package versions

✅ With Context7

Context7 MCP pulls up-to-date, version-specific documentation and code examples straight from the source — and places them directly into your prompt.

Add use context7 to your prompt in Cursor:

``txt
Create a basic Next.js project with app router. use context7
`

`txt
Create a script to delete the rows where the city is "" given PostgreSQL credentials. use context7
`

Context7 fetches up-to-date code examples and documentation right into your LLM's context.

- 1️⃣ Write your prompt naturally
- 2️⃣ Tell the LLM to use context7
- 3️⃣ Get working code answers

No tab-switching, no hallucinated APIs that don't exist, no outdated code generations.

🛠️ Getting Started

$3

- Node.js >= v18.0.0
- Cursor, Windsurf, Claude Desktop or another MCP Client

$3

To install Context7 MCP Server for Claude Desktop automatically via Smithery:

`bash
npx -y @smithery/cli install @upstash/context7-mcp --client claude
`

$3

Go to: Settings -> Cursor Settings -> MCP -> Add new global MCP server

Pasting the following configuration into your Cursor ~/.cursor/mcp.json file is the recommended approach. You may also install in a specific project by creating .cursor/mcp.json in your project folder. See Cursor MCP docs for more info.

`json
{
"mcpServers": {
"context7": {
"command": "npx",
"args": ["-y", "@upstash/context7-mcp@latest"]
}
}
}
`

$3

Add this to your Windsurf MCP config file. See Windsurf MCP docs for more info.

`json
{
"mcpServers": {
"context7": {
"command": "npx",
"args": ["-y", "@upstash/context7-mcp@latest"]
}
}
}
`

$3

Add this to your VS Code MCP config file. See VS Code MCP docs for more info.

`json
{
"servers": {
"Context7": {
"type": "stdio",
"command": "npx",
"args": ["-y", "@upstash/context7-mcp@latest"]
}
}
}
`

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It can be installed via Zed Extensions or you can add this to your Zed settings.json. See Zed Context Server docs for more info.

`json
{
"context_servers": {
"Context7": {
"command": {
"path": "npx",
"args": ["-y", "@upstash/context7-mcp@latest"]
},
"settings": {}
}
}
}
`

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Run this command. See Claude Code MCP docs for more info.

`sh
claude mcp add context7 -- npx -y @upstash/context7-mcp@latest
`

$3

Add this to your Claude Desktop claude_desktop_config.json file. See Claude Desktop MCP docs for more info.

`json
{
"mcpServers": {
"Context7": {
"command": "npx",
"args": ["-y", "@upstash/context7-mcp@latest"]
}
}
}
`

$3

If you prefer to run the MCP server in a Docker container:

1. Build the Docker Image:

First, create a Dockerfile in the project root (or anywhere you prefer):

Then, build the image using a tag (e.g., context7-mcp). Make sure Docker Desktop (or the Docker daemon) is running. Run the following command in the same directory where you saved the Dockerfile:

`bash
docker build -t context7-mcp .
`

2. Configure Your MCP Client:

Update your MCP client's configuration to use the Docker command.

Example for a cline_mcp_settings.json:

`json
{
"mcpServers": {
"Сontext7": {
"autoApprove": [],
"disabled": false,
"timeout": 60,
"command": "docker",
"args": ["run", "-i", "--rm", "context7-mcp"],
"transportType": "stdio"
}
}
}
`

Note: This is an example configuration. Please refer to the specific examples for your MCP client (like Cursor, VS Code, etc.) earlier in this README to adapt the structure (e.g., mcpServers vs servers). Also, ensure the image name in args matches the tag used during the docker build command.

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- DEFAULT_MINIMUM_TOKENS: Set the minimum token count for documentation retrieval (default: 10000).

Examples:

`json
{
"mcpServers": {
"context7": {
"command": "npx",
"args": ["-y", "@upstash/context7-mcp@latest"],
"env": {
"DEFAULT_MINIMUM_TOKENS": "10000"
}
}
}
}
`

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- resolve-library-id: Resolves a general library name into a Context7-compatible library ID.
- libraryName (required)
- get-library-docs: Fetches documentation for a library using a Context7-compatible library ID.
- context7CompatibleLibraryID (required)
- topic (optional): Focus the docs on a specific topic (e.g., "routing", "hooks")
- tokens (optional, default 10000): Max number of tokens to return. Values less than the configured DEFAULT_MINIMUM_TOKENS value or the default value of 10000 are automatically increased to that value.

Development

Clone the project and install dependencies:

`bash
bun i
`

Build:

`bash
bun run build
`

$3

`json
{
"mcpServers": {
"context7": {
"command": "npx",
"args": ["tsx", "/path/to/folder/context7-mcp/src/index.ts"]
}
}
}
`

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`bash
npx -y @modelcontextprotocol/inspector npx @upstash/context7-mcp@latest
`

Troubleshooting

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If you see this error, try using bunx instead of npx.

`json
{
"mcpServers": {
"context7": {
"command": "bunx",
"args": ["-y", "@upstash/context7-mcp@latest"]
}
}
}
`

This often resolves module resolution issues, especially in environments where npx does not properly install or resolve packages.

$3

If you encounter an error like: Error: Cannot find module 'uriTemplate.js' try running with the --experimental-vm-modules flag:

`json
{
"mcpServers": {
"context7": {
"command": "npx",
"args": [
"-y",
"--node-options=--experimental-vm-modules",
"@upstash/context7-mcp@1.0.6"
]
}
}
}
`

$3

1. Try removing @latest from the package name.

2. Try using bunx as an alternative.

3. Try using deno as an alternative.

4. Make sure you are using Node v18 or higher to have native fetch support with npx`.

Disclaimer

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.

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)"

Star History


License

MIT