A feature-rich, well-documented community MCP server for DeepSeek with dual V4 models, session management, schema-validated JSON, cost tracking, and circuit-breaker fallback, backed by ~89% test coverage. Ideal for developers integrating DeepSeek into MCP workflows, though note it is unofficial and self-hosted HTTP mode requires careful endpoint security.
DeepSeek MCP Server is a community-maintained, MIT-licensed MCP server for accessing DeepSeek V4 models (deepseek-v4-flash and deepseek-v4-pro), both with a 1M-token context window and optional chain-of-thought thinking mode. It provides multi-turn sessions, function calling (up to 128 tool definitions), JSON output with schema validation, fill-in-the-middle (FIM) completion, cache-aware cost tracking, automatic model fallback with circuit breaker protection, 12 prompt templates, and 3 MCP resources (models, config, usage). It runs via npm (stdio) or a hosted BYOK endpoint (Streamable HTTP), and works with Claude Code, Gemini CLI, Cursor, Windsurf, and other MCP clients. Note: this is an independent community project, not an official DeepSeek product.
Requires Node.js 20+ and a DeepSeek API key (from platform.deepseek.com). Claude Code local: claude mcp add -s user deepseek npx @arikusi/deepseek-mcp-server -e DEEPSEEK_API_KEY=your-key-here. Gemini CLI: gemini mcp add deepseek npx @arikusi/deepseek-mcp-server -e DEEPSEEK_API_KEY=your-key-here. Or use the hosted endpoint (no install): claude mcp add --transport http deepseek https://deepseek-mcp.tahirl.com/mcp --header "Authorization: Bearer YOUR_DEEPSEEK_API_KEY".
{"mcpServers":{"deepseek":{"command":"npx","args":["@arikusi/deepseek-mcp-server"],"env":{"DEEPSEEK_API_KEY":"your-api-key-here"}}}}