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On October 27, 2026, MiniMax open-sourced the self-hosted OpenAI Agents API "OpenAgentCore". According to Shao Meng's report that day, the official OpenAI SDK or bare HTTP only needs to point the address to the self-built Core's /v1 to make calls. Each Session can optionally use a harness (such as codex), natively running Codex, Claude Code, and MiniMax Code within the session, with models going through a self-configured provider. The Sandbox Provider, workspace file system, Harness, and model provider are all replaceable according to established protocols, supporting microsandbox, E2B, Docker, and local Linux/macOS/Windows. There are currently no reports of further developments.
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MiniMax Open-Sources Self-Hosted OpenAI Agents API "OpenAgentCore"Developments
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Oct 27
Shao Meng
MiniMax Open-Sources Self-Hosted OpenAI Agents API "OpenAgentCore"
MiniMax has open-sourced a self-hosted OpenAI Agents API called "OpenAgentCore". With the official OpenAI SDK or plain HTTP, you only need to point the address to the /v1 endpoint of your self-built Core to make calls. Each Session can optionally use a harness (such as codex), natively running Codex, Claude Code, and MiniMax Code within the session, with models going through a self-configured provider. The Sandbox Provider, workspace filesystem, Harness, and model provider are all replaceable according to established protocols, supporting microsandbox, E2B, Docker, and local Linux/macOS/Windows.