MCP 服务器

kagi-kan-mcp

Unofficial MCP server for working with Kagi without API access (you'll need to be a customer, tho). Searches and summarizes. Uses Kagi session token for easy authentication.

README

kagi-ken-mcp

A lightweight Node MCP server around the kagi-ken package, providing access to Kagi.com services using Kagi session tokens:

Search: Searches Kagi
Summarizer: Uses Kagi's Summarizer to create summaries from URLs or text content

Unlike the official Kagi API which requires API access, this MCP server uses your existing Kagi session to access both search and summarization features.

"Kagi-ken" is a portmanteau of "Kagi" (the service) and "token".

Why?

The Kagi API requires a separate API key, which are invite-only at the moment. If you already have a Kagi subscription but no API access, yet want to programmatically access Kagi's services from LLMs or agents like Claude, this MCP server provides an alternative.

Features

Search: Fetch web results using Kagi Search with concurrent query processing
Summarization: Summarize content from URLs with customizable output types and languages

The server supports two methods for using your Kagi session token (see Installation), in this order:

KAGI_SESSION_TOKEN environment variable
~/.kagi_session_token file containing the token string

It includes comprehensive error handling:

Connection timeouts (10 seconds per search)
Invalid input validation
Environment variable validation
Graceful error formatting

Installation

Node.js 22+ is required.

1. Get Kagi Session Token

Visit Kagi Settings in your browser
Copy the Session Link
Extract the token value from the link
Use that value as your session token: save to ~/.kagi_session_token (recommended), alternatively pass as KAGI_SESSION_TOKEN env variable

The server will automatically try the environment variable first, then fall back to the token file.

[!WARNING] Security Note: Keep your session token private. It provides access to your Kagi account.

2.a. Add MCP server to Claude Desktop

Add kagi-ken-mcp to your claude_desktop_config.json which you can open from the Claude Desktop app via Settings → Developer → Local MCP Servers → Edit Config.

Afterwards, disable Claude Desktop's built-in websearch so it'll use this here MCP server.

Method 1: Using token file (recommended)

{
  "mcpServers": {
    "kagi-ken-mcp": {
      "command": "npx",
      "args": ["-y", "github:czottmann/kagi-ken-mcp"]
    }
  }
}

Method 2: Using environment variable

{
  "mcpServers": {
    "kagi-ken-mcp": {
      "command": "npx",
      "args": ["-y", "github:czottmann/kagi-ken-mcp"],
      "env": {
        "KAGI_SESSION_TOKEN": "YOUR_SESSION_TOKEN_HERE"
      }
    }
  }
}

2.b. Add MCP server to Claude Code

Method 1: Using token file (recommended)

claude mcp add kagi-ken-mcp --scope user -- npx -y github:czottmann/kagi-ken-mcp

Method 2: Using environment variable

claude mcp add kagi-ken-mcp \
  --scope user \
  --env KAGI_SESSION_TOKEN="YOUR_SESSION_TOKEN_HERE" -- \
  npx -y github:czottmann/kagi-ken-mcp

To disable Claude Code's built-in web search (optional), set the permission in the relevant .claude/settings*.json file:

{
  "permissions": {
    "deny": [
      "WebSearch"
    ],
    "allow": [
      "mcp__kagi-ken-mcp__kagi_search_fetch",
      "mcp__kagi-ken-mcp__kagi_summarizer"
    ]
  }
}

Usage: Pose query that requires use of a tool

e.g. "Who was time's 2024 person of the year?" for search, or "summarize this video: https://www.youtube.com/watch?v=sczwaYyaevY" for summarizer.

Tools

`kagi_search_fetch`

Fetch web results based on one or more queries using the Kagi Search API. Results are numbered continuously for easy reference.

Parameters:

queries (array of strings): One or more search queries

`kagi_summarizer`

Summarize content from URLs using the Kagi Summarizer API. Supports various document types including webpages, videos, and audio.

Parameters:

url (string): URL to summarize
summary_type (enum): "summary" for paragraph prose or "takeaway" for bullet points (default: "summary")
target_language (string, optional): Language code (e.g., "EN" for English, default: "EN")

Development

Project Structure

kagi-ken-mcp/
├── src/
│   ├── index.js              # Main server entry point
│   ├── tools/
│   │   ├── search.js         # Search tool implementation
│   │   └── summarizer.js     # Summarizer tool implementation
│   └── utils/
│       └── formatting.js     # Utility functions
├── package.json
└── README.md

Installation

Clone the repository:

git clone <repository-url>
cd kagi-ken-mcp

Install dependencies:
```
npm install
```

Running in Development Mode

npm run dev

Debugging

Use the MCP Inspector to debug:

npx @modelcontextprotocol/inspector node ./src/index.js

Then access the inspector at http://localhost:5173. If using environment variables, add your KAGI_SESSION_TOKEN in the environment variables section of the inspector.

Contributing

Fork the repository
Create a feature branch
Make your changes
Test with the MCP Inspector
Submit a pull request

Author

Carlo Zottmann, carlo@zottmann.dev, https://c.zottmann.dev, https://github.com/czottmann.

This project is neither affiliated with nor endorsed by Kagi. I'm just a very happy customer.

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