Deepseek-Thinking-Claude-3.5-Sonnet-CLINE-MCP

MCP.Pizza Chef: newideas99

Ask it a tough question and it runs two models in sequence through OpenRouter: DeepSeek R1 works out the reasoning, then Claude writes the final answer using that thinking. Two things to know. The models are fixed in the code, so the settings the README calls optional model configuration are never actually read, and you are pinned to Claude 3.5 Sonnet from late 2024. By default it also reads your most recent Cline conversation off disk and sends it to both models. No code changes since February 2025.

Unmaintained · No commits in 18 months.
Coding
Writing

Use This MCP server To

Think through a tricky design decision before I commit to it See the reasoning steps alongside the final answer Ask a hard question that keeps tripping up my usual assistant Carry on from where my last coding conversation left off

README

Deepseek-Thinking-Claude-3.5-Sonnet-CLINE-MCP

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A Model Context Protocol (MCP) server that combines DeepSeek R1's reasoning capabilities with Claude 3.5 Sonnet's response generation through OpenRouter. This implementation uses a two-stage process where DeepSeek provides structured reasoning which is then incorporated into Claude's response generation.

Features

  • Two-Stage Processing:

    • Uses DeepSeek R1 for initial reasoning (50k character context)
    • Uses Claude 3.5 Sonnet for final response (600k character context)
    • Both models accessed through OpenRouter's unified API
    • Injects DeepSeek's reasoning tokens into Claude's context
  • Smart Conversation Management:

    • Detects active conversations using file modification times
    • Handles multiple concurrent conversations
    • Filters out ended conversations automatically
    • Supports context clearing when needed
  • Optimized Parameters:

    • Model-specific context limits:
      • DeepSeek: 50,000 characters for focused reasoning
      • Claude: 600,000 characters for comprehensive responses
    • Recommended settings:
      • temperature: 0.7 for balanced creativity
      • top_p: 1.0 for full probability distribution
      • repetition_penalty: 1.0 to prevent repetition

Installation

Installing via Smithery

To install DeepSeek Thinking with Claude 3.5 Sonnet for Claude Desktop automatically via Smithery:

npx -y @smithery/cli install @newideas99/Deepseek-Thinking-Claude-3.5-Sonnet-CLINE-MCP --client claude

Manual Installation

  1. Clone the repository:
git clone https://github.com/yourusername/Deepseek-Thinking-Claude-3.5-Sonnet-CLINE-MCP.git
cd Deepseek-Thinking-Claude-3.5-Sonnet-CLINE-MCP
  1. Install dependencies:
npm install
  1. Create a .env file with your OpenRouter API key:
# Required: OpenRouter API key for both DeepSeek and Claude models
OPENROUTER_API_KEY=your_openrouter_api_key_here

# Optional: Model configuration (defaults shown below)
DEEPSEEK_MODEL=deepseek/deepseek-r1  # DeepSeek model for reasoning
CLAUDE_MODEL=anthropic/claude-3.5-sonnet:beta  # Claude model for responses
  1. Build the server:
npm run build

Usage with Cline

Add to your Cline MCP settings (usually in ~/.vscode/globalStorage/saoudrizwan.claude-dev/settings/cline_mcp_settings.json):

{
  "mcpServers": {
    "deepseek-claude": {
      "command": "/path/to/node",
      "args": ["/path/to/Deepseek-Thinking-Claude-3.5-Sonnet-CLINE-MCP/build/index.js"],
      "env": {
        "OPENROUTER_API_KEY": "your_key_here"
      },
      "disabled": false,
      "autoApprove": []
    }
  }
}

Tool Usage

The server provides two tools for generating and monitoring responses:

generate_response

Main tool for generating responses with the following parameters:

{
  "prompt": string,           // Required: The question or prompt
  "showReasoning"?: boolean, // Optional: Show DeepSeek's reasoning process
  "clearContext"?: boolean,  // Optional: Clear conversation history
  "includeHistory"?: boolean // Optional: Include Cline conversation history
}

check_response_status

Tool for checking the status of a response generation task:

{
  "taskId": string  // Required: The task ID from generate_response
}

Response Polling

The server uses a polling mechanism to handle long-running requests:

  1. Initial Request:

    • generate_response returns immediately with a task ID
    • Response format: {"taskId": "uuid-here"}
  2. Status Checking:

    • Use check_response_status to poll the task status
    • Note: Responses can take up to 60 seconds to complete
    • Status progresses through: pending → reasoning → responding → complete

Example usage in Cline:

// Initial request
const result = await use_mcp_tool({
  server_name: "deepseek-claude",
  tool_name: "generate_response",
  arguments: {
    prompt: "What is quantum computing?",
    showReasoning: true
  }
});

// Get taskId from result
const taskId = JSON.parse(result.content[0].text).taskId;

// Poll for status (may need multiple checks over ~60 seconds)
const status = await use_mcp_tool({
  server_name: "deepseek-claude",
  tool_name: "check_response_status",
  arguments: { taskId }
});

// Example status response when complete:
{
  "status": "complete",
  "reasoning": "...",  // If showReasoning was true
  "response": "..."    // The final response
}

Development

For development with auto-rebuild:

npm run watch

How It Works

  1. Reasoning Stage (DeepSeek R1):

    • Uses OpenRouter's reasoning tokens feature
    • Prompt is modified to output 'done' while capturing reasoning
    • Reasoning is extracted from response metadata
  2. Response Stage (Claude 3.5 Sonnet):

    • Receives the original prompt and DeepSeek's reasoning
    • Generates final response incorporating the reasoning
    • Maintains conversation context and history

License

MIT License - See LICENSE file for details.

Credits

Based on the RAT (Retrieval Augmented Thinking) concept by Skirano, which enhances AI responses through structured reasoning and knowledge retrieval.

This implementation specifically combines DeepSeek R1's reasoning capabilities with Claude 3.5 Sonnet's response generation through OpenRouter's unified API.

Deepseek-Thinking-Claude-3.5-Sonnet-CLINE-MCP FAQ

Do I need a key?
Yes, an OpenRouter key on an account with a balance. Every question bills you twice, once for the reasoning pass and once for the answer, so costs add up faster than a normal chat.
Can I choose which models it uses?
No. The README lists model names as optional settings, but both are written directly into the code and those settings are never read. You get DeepSeek R1 and Claude 3.5 Sonnet.
Does it send my conversation history anywhere?
Yes, by default. It reads your most recent Cline conversation off disk and includes up to 50,000 characters in the reasoning request and up to 600,000 in the answer request. Set includeHistory to false to stop that.
Which apps does it work in?
It is built for Cline in VS Code. The history feature only works there, though the basic question tool runs in Claude Desktop or any assistant that can start a local command.
Can I use this to reason through a hard problem?
Yes — that is the whole point. You ask once, the reasoning model thinks it through, and the second model writes the reply with that thinking in front of it.
Why does a reply take so long?
Two models run one after the other. The README warns replies can take up to a minute, so it hands back a task number and you check on it.
How hard is setup?
Developer-level. You clone the project, install its packages and build it before you can paste the configuration block into your editor.
Is it still maintained?
There is no sign of it. The last code change was February 2025, around eighteen months ago, and it is still pinned to a model released in October 2024.