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Engineering teams building agents need a shared runtime for runs, sessions, memory, knowledge, authentication, traces, and evals. Building that foundation once gives every agent the same API, state, security, and operating model. AgentOS runs that foundation as a FastAPI application in your cloud. Every registered agent, team, and workflow gets a REST API, an MCP interface, and a place in the AgentOS UI. Postgres stores runtime state. The Railway starter used in this guide also includes six coding-agent skills for setup, creation, extension, improvement, evaluation, and maintenance.

Build with a coding agent

Pick a cloud, then give the setup prompt to your favorite coding agent. The prompt starts the platform and uses the skills in .agents/skills to build the first agent.
See AgentOS on Railway.

Build it step by step

We learn by building, so the rest of this guide walks through each part of the platform using the AgentOS on Railway template. The development loop is shared across Agno’s deployment templates. When it is time to deploy, follow the guide for your cloud provider.