An open-source, self-hosted implementation of the OpenAI Agents API with multiple native harnesses.
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OpenAgentCore runs AI agents on your own infrastructure behind the OpenAI Agents API.
- Same API as OpenAI. Point the OpenAI Agent API, or plain HTTP, at your installation. No new client to learn.
- Your choice of agent. Each Session runs a native harness: Codex, Claude Code or MiniMax Code, with the model provider you configure.
- Your choice of machine. Agents work in a managed sandbox (Docker, microsandbox or E2B), or on your own Linux, macOS or Windows machine.
- Every part is replaceable. Sandboxes, harnesses and model providers plug in through defined protocols.
Applications and operators use these Core APIs:
| API | Path | Used by |
|---|---|---|
| Agents API | /v1 |
Your applications. Same protocol as OpenAI's Agents API |
| Core API | /core/v1 |
Operators, through Web |
Core keeps durable execution state. The Runtime runs the chosen harness inside the Environment. Each connection is a defined protocol, so any part can be replaced on its own. See the architecture guide.
| Overview | Agent metrics |
|---|---|
 |
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On Linux or macOS with Docker configured:
curl -fsSL https://github.com/MiniMax-AI/OpenAgentCore/releases/latest/download/install.sh | bashWindows PowerShell:
irm https://github.com/MiniMax-AI/OpenAgentCore/releases/latest/download/install.ps1 | iexThen:
- Sign in to Web, the admin console, with the Core key the installer created, and configure the domain and HTTPS.
- Set a default model and issue a Project API key.
- Add execution capacity: a node, E2B, or your own machine.
- Run your first Session with the OpenAI SDK.
The installation guide covers each step, HTTPS and a quick local trial. Listen addresses, ports and other options: installation options.
| I want to | Start with |
|---|---|
| Install and operate an installation | Installation, then operations |
| Build an application on the API | Quickstart, then the Agents API guide |
| See a complete application | Examples |
| Run agents on my own machine | Self-hosted execution |
| Check Harness capabilities and limits | Harness capabilities |
| Understand the design | Architecture |
| Add a sandbox, harness or other component | Developer guide |
All pages: documentation index. Before changing code, read the contributor rules.