Claude, Codex, OpenCode or ACP: running any agent harness in one IDE
A guide to bringing your own subscription or API key, connecting ACP harnesses like OmniCode and Hermes, and handing tasks between them.
Amoeba does not ship a model. You sign in with the Claude, OpenAI, Cursor or Antigravity plan you already pay for, or paste any OpenAI-compatible API key. Each teammate’s agent runs on their own account inside the shared session.
Harnesses are first-class too. OpenCode runs as a harness with whatever model it is configured for, and any agent that speaks the Agent Client Protocol over stdio can join: OmniCode, Hermes, Gemini CLI, Codex, or one you wrote.
Because every agent lands in the same session, a task started on one harness can be handed to another, with the prompt history and diff intact.