AgentStack MCP bundles three AI reasoning servers into one unified endpoint

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A developer has released AgentStack MCP, a single Model Context Protocol server that consolidates three previously separate tools — ScenarioSim, DecisionMatrix, and PrecisionCalc — into one endpoint with one API key. The platform addresses the friction agents faced when all three tools were needed for a single task, eliminating the need to install and manage them independently. AgentStack adds composite tools that chain the three engines together, enabling multi-step reasoning workflows such as simulating scenarios, ranking options by weighted criteria, and computing financial valuations end-to-end. All calculations run through decimal.js at 40-digit precision, ensuring deterministic, byte-identical outputs for the same inputs. The server is open-source under the MIT license, supports self-hosting on platforms like Cloudflare Pages and Deno, and offers a free tier of 20 calls per day without requiring an API key.

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