seekfetch MCP server

seekfetch

Web search and page-to-Markdown for AI agents, powered by the DeepSeek Search & Fetch API. One package, three ways to use it: an MCP server, a CLI, and a TypeScript library.

Unofficial community project. seekfetch is not affiliated with, endorsed by, or sponsored by DeepSeek.

It is a client for DeepSeek's public API and needs your own API key.

Why

• Calls the dedicated endpoints (/v1/tools/search, /v1/tools/fetch). No chat model sits in between, so a search costs one API request and no model tokens.
• Search, fetch and research. research returns the best pages with their content from a single search request, and only fetches the pages that came back empty.
• Built for context windows. It returns DeepSeek's model-ready summaries by default, filters by relevance score, and pages through long documents with an offset.
• Production behavior. It retries 408/429/5xx with backoff and honors Retry-After. It paces requests to the 5 QPS account limit and validates inputs locally so bad requests never cost a call. It parses responses tolerantly, so new or missing fields don't break it.

Quick start

1. Get an API key at platform.deepseek.com.
2. Add seekfetch to your MCP client (below), or run it from the shell:

export DEEPSEEK_API_KEY=sk-...
npx -y seekfetch search "model context protocol registry"

Requires Node.js 22.12 or later.

MCP setup

The server runs over stdio with npx -y seekfetch mcp.

Claude Code

claude mcp add seekfetch -e DEEPSEEK_API_KEY=sk-... -- npx -y seekfetch mcp

Claude Desktop — claudedesktopconfig.json

{
  "mcpServers": {
    "seekfetch": {
      "command": "npx",
      "args": ["-y", "seekfetch", "mcp"],
      "env": { "DEEPSEEK_API_KEY": "sk-..." }
    }
  }
}

Cursor — ~/.cursor/mcp.json

{
  "mcpServers": {
    "seekfetch": {
      "command": "npx",
      "args": ["-y", "seekfetch", "mcp"],
      "env": { "DEEPSEEK_API_KEY": "sk-..." }
    }
  }
}

VS Code — .vscode/mcp.json

{
  "inputs": [
    { "type": "promptString", "id": "deepseek-key", "description": "DeepSeek API key", "password": true }
  ],
  "servers": {
    "seekfetch": {
      "type": "stdio",
      "command": "npx",
      "args": ["-y", "seekfetch", "mcp"],
      "env": { "DEEPSEEK_API_KEY": "${input:deepseek-key}" }
    }
  }
}

Codex — ~/.codex/config.toml

[mcp_servers.seekfetch]
command = "npx"
args = ["-y", "seekfetch", "mcp"]
env = { DEEPSEEK_API_KEY = "sk-..." }

On Windows, if your client can't find npx, use "command": "cmd" with "args": ["/c", "npx", "-y", "seekfetch", "mcp"].

Tools

All tools are read-only.

CLI

npm i -g seekfetch          # or prefix each command with npx -y

Shortened. The full README is on GitHub.