MCP 服务器

DeepSeek Subagent MCP Server

Lets MCP clients like Codex delegate independent sub-tasks to DeepSeek as a sub-agent via a single tool, with optional context, custom system prompts, and configurable model/temperature settings.

README

DeepSeek Subagent MCP Server

MCP server that lets Codex (or any MCP client) delegate sub-tasks to DeepSeek as a sub-agent. Single tool deepseek_task: give it a task (+ optional context), get back DeepSeek's final answer.

Features

🧠 Single tool deepseek_task — delegate independent work (research/draft/review/refactor/analysis)
💰 Defaults to deepseek-v4-flash (cost-effective), switch to deepseek-v4-pro via env
🔍 Surfaces reasoning_content (V4 thinking mode) as a <thinking> block
⚡ Zero non-MCP dependencies, one-line npx deploy

Requirements

Node.js >= 18
A DeepSeek API key: https://platform.deepseek.com

Install & run

cd deepseek-subagent-mcp-server
npm install
npm start

Environment variables

Variable	Required	Default	Description
`DEEPSEEK_API_KEY`	✅	—	Your DeepSeek API key.
`DEEPSEEK_MODEL`		`deepseek-v4-flash`	Model. Also `deepseek-v4-pro`.
`DEEPSEEK_BASE_URL`		`https://api.deepseek.com`	Override endpoint (for proxies).
`DEEPSEEK_MAX_TOKENS`		`8192`	Default max output tokens.

Codex config

Add to Codex's MCP configuration:

{
  "mcpServers": {
    "deepseek-subagent": {
      "type": "stdio",
      "command": "npx",
      "args": ["-y", "deepseek-subagent-mcp-server"],
      "env": {
        "DEEPSEEK_API_KEY": "your-deepseek-api-key",
        "DEEPSEEK_MODEL": "deepseek-v4-flash"
      }
    }
  }
}

Or run from a local checkout:

{
  "mcpServers": {
    "deepseek-subagent": {
      "command": "node",
      "args": ["D:\\GitHub\\MCP\\deepseek-subagent-mcp-server\\src\\index.js"],
      "env": {
        "DEEPSEEK_API_KEY": "your-key-here"
      }
    }
  }
}

Tool: `deepseek_task`

Parameter	Type	Required	Description
`task`	string	✅	The sub-task for DeepSeek. Be specific about what to do and output format.
`context`	string		Optional context material (code, notes, snippets).
`system`	string		Optional custom system prompt (defaults to a subagent persona).
`max_tokens`	number		Max output tokens. Default 8192.
`temperature`	number		0-2. Omit to use model default.

Example usage

# Delegate a code review
deepseek_task(task="Review this function for bugs and edge cases", context="<code>...")

# Delegate a research task
deepseek_task(task="Summarize the key risks of a subscription pricing model")