Xiaomi Mimo API

Xiaomi MiMo Free AI API

Use this workflow whenever a task calls Xiaomi MiMo through api.xiaomimimo.com.

Preconditions

• The target environment allows outbound HTTPS to api.xiaomimimo.com.
• The provider must be invoked with the free-ai bootstrap flow; standard Authorization: Bearer sk-... or tp-... keys are invalid here.

Core workflow

1. Bootstrap a session JWT:

curl -s -X POST 'https://api.xiaomimimo.com/api/free-ai/bootstrap' \
  -H 'Content-Type: application/json' \
  -d '{"client":"haha"}'

• Parse JSON and read jwt.
• The returned jwt is short-lived; bootstrap once per logical session.

2. Call chat:

curl -X POST 'https://api.xiaomimimo.com/api/free-ai/openai/chat' \
  -H "Authorization: Bearer *** \
  -H 'X-Mimo-Source: mimocode-cli-free' \
  -H 'Content-Type: application/json' \
  -d '{
    "model": "mimo-auto",
    "messages": [{"role":"user","content":"..."}],
    "max_tokens": 128000,
    "stream": true,
    "temperature": 1.0
  }'

Response shape

Returns OpenAI-compatible SSE chunks.

• model is always reported as mimo-auto.
• Each chunk may contain reasoning_content, then content.
• Final chunk may contain usage when stream=true.

A representative successful body:

{
  "id": "...",
  "object": "chat.completion.chunk",
  "model": "mimo-auto",
  "choices": [
    {
      "delta": {
        "reasoning_content": "用户要求我只回复...",
        "content": "我是MiMo，由小米大模型Core团队开发的智能助手！"
      },
      "finish_reason": "stop"
    }
  ]
}

Pitfalls

• Wrong endpoint: /v1/chat/completions returns 401 even with bootstrap JWT.
• Missing header: omit X-Mimo-Source: mimocode-cli-free and the call will reject.
• Model ID: docs mention mimo-v2.5-pro-ultraspeed, but the working free-ai endpoint uses mimo-auto.
• Key reuse: do not reuse prior sk-... or tp-... credentials with this endpoint.

Verification

After bootstrap, a minimal successful call is:

• model in response: mimo-auto
• First non-empty assistant output in content
• finish_reason: stop

If bootstrap succeeds but chat returns 401, the issue is headers/model or the JWT expired.