Chat & LLM Completions API

Claude, GPT-5, Gemini — OpenAI-compatible chat completions via one API

Supported models

Pick any model slug from the table and pass it as model in the request body. All chat models share the same endpoint shape.

Claude
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Gpt 5
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Gemini
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Endpoint

POST https://aimarcusimage.eu/api/v1/chat/completions

Request

curl https://aimarcusimage.eu/api/v1/chat/completions \
  -H "Authorization: Bearer sk-aig-YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "claude-opus-4-6",
  "messages": [
    {
      "role": "user",
      "content": "Hello from AI Generate"
    }
  ]
}'

Response

{
  "id": "chatcmpl-...",
  "choices": [{
    "message": { "role": "assistant", "content": "Hello! How can I help?" }
  }],
  "usage": { "prompt_tokens": 10, "completion_tokens": 12 }
}

OpenAI-compatible format — works with the official openai Python / Node SDK by changing only base_url.

Next steps

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