Deepseek MCP Server

MCP server for DeepSeek V4 (v4-flash, v4-pro, 1M context): chat, reasoning, function calling, thinking mode, cost tracking. deepseek-chat/reasoner aliases supported.

The short version

• DeepSeek V4 — deepseek-v4-flash and deepseek-v4-pro, both with 1M context and optional chain-of-thought thinking mode
• Multi-Turn Sessions — Conversation context preserved across requests via session_id parameter
• Model Fallback & Circuit Breaker — Automatic fallback between models with circuit breaker protection against cascading failures
• MCP Resources — deepseek://models, deepseek://config, deepseek://usage — query model info, config, and usage stats
• Thinking Mode — Enable chain-of-thought reasoning on either V4 model with thinking: {type: "enabled"}
• JSON Output Mode — Structured JSON responses with json_mode: true

What it needs from you

• Node.js 20+ - A DeepSeek API key (get one at https://platform.deepseek.com)

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Maintainer setup documentation.