CN auth header incompatibility: mmx text chat fails with 1033 via x-api-key, succeeds with Authorization Bearer

[Mirko214]

Summary

mmx text chat fails on MiniMax CN with HTTP 500 / system error (1033) when using API-key auth from CLI.

Same request succeeds against the same endpoint when sent manually with Authorization: Bearer <key>.

This suggests a compatibility/auth-header issue in CLI request construction for CN text endpoint.

Environment

• mmx-cli: 1.0.5
• Region: cn
• Base URL: https://api.minimaxi.com
• Command path: text chat (Anthropic Messages API)

Repro

1) Login works and quota works

mmx auth login --api-key sk-... --region cn
mmx quota --region cn

Both succeed.

2) CLI text chat fails

mmx text chat --message "你好" --model MiniMax-M2.7 --region cn --verbose --output json

Verbose shows request goes to:

POST https://api.minimaxi.com/anthropic/v1/messages

Response:

{
  "error": {
    "code": 1,
    "message": "API error: system error (1033) (HTTP 500)"
  }
}

3) Same endpoint succeeds with Bearer auth

curl https://api.minimaxi.com/anthropic/v1/messages \
  -H "Authorization: Bearer sk-..." \
  -H "anthropic-version: 2023-06-01" \
  -H "content-type: application/json" \
  -d '{
    "model": "MiniMax-M2.7",
    "max_tokens": 64,
    "messages": [{"role": "user","content": "你好"}]
  }'

This returns a normal assistant response.

4) Same endpoint fails with x-api-key

curl https://api.minimaxi.com/anthropic/v1/messages \
  -H "x-api-key: sk-..." \
  -H "anthropic-version: 2023-06-01" \
  -H "content-type: application/json" \
  -d '{
    "model": "MiniMax-M2.7",
    "max_tokens": 64,
    "messages": [{"role": "user","content": "你好"}]
  }'

Returns:

{"type":"error","error":{"type":"api_error","message":"system error (1033)"}}

Additional signal

On non-anthropic CN text endpoint, server explicitly asks for Authorization header:

{
  "base_resp": {
    "status_code": 1004,
    "status_msg": "login fail: Please carry the API secret key in the 'Authorization' field of the request header"
  }
}

Expected

mmx text chat should work with CN API key login, or auto-switch to the auth header style required by the CN endpoint.

Actual

mmx text chat consistently fails with 1033 under CN while direct Bearer request works.

---

Happy to test a patch build if needed.

[k186]

1003 是他们系统错误 不是cli的问题 https://platform.minimaxi.com/docs/api-reference/errorcode