An MCP server that provides a reasoning sidekick for tool-using agents with a single 'think' tool for tackling complex problems. It allows agents to consult powerful reasoning models like Claude Opus or GPT-5 only when needed, keeping costs low while maintaining control over side effects.
Install from
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process.env. You'll be asked to provide them before it can run.ATHENA_APP_NAME— / ATHENA_APP_URL openrouter — OpenRouter analytics headersATHENA_APP_URL— ATHENA_APP_NAME / openrouter — OpenRouter analytics headersATHENA_BACKEND— Pick explicitly with =claude-code or ATHENA_BACKEND=openrouter.ATHENA_CLAUDE_CLI— claude-code auto (PATH lookup) Absolute path to claude binaryATHENA_EFFORT— both high low / medium / highATHENA_MODEL— both opus / anthropic/claude-opus-4.6 Model to useATHENA_TIMEOUT_MS— claude-code 180000 Subprocess timeoutOPENROUTER_API_KEY— openrouter — HTTPS call to OpenRouter. Any model (Claude, GPT, Gemini, DeepSeek, Qwen, whatever) via per-token billing. Requires .[](https://m8ven.ai/mcp/devvgwardo-athena-mcp-15u58m)