Sigma MaaS API Documentation | Access OpenAI, Anthropic, Google & DeepSeek

Welcome to Sigma MaaS API documentation. Seamlessly integrate 570+ state-of-the-art AI models, including OpenAI (GPT-5, GPT-4), Anthropic (Claude Sonnet), Google (Gemini 2.5), DeepSeek-V3, Meta, ByteDance (Seedream/Seedance), and Kling, through our unified, OpenAI-compatible REST API.

Getting Started with Sigma MaaS API

Sigma MaaS provides a comprehensive REST API that is fully compatible with OpenAI's API format. This means you can easily switch from OpenAI to Sigma MaaS by simply changing the base URL and API key.

Base URL

https://api.sigmaauto.ai/api

Authentication

All API requests require authentication using an API key. Include your API key in the Authorization header:

Authorization: Bearer $YOUR_API_KEY

Quick Example

curl https://api.sigmaauto.ai/api/v1/chat/completions \
  -H "Authorization: Bearer $YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "gpt-5",
    "messages": [
      {"role": "user", "content": "Hello!"}
    ]
  }'

Available AI Models & APIs

Select a model from the left sidebar to view detailed API documentation, request/response examples, and model-specific parameters for our extensive model library.

Text AI Models (LLMs): OpenAI GPT-5, GPT-4, Anthropic Claude Sonnet 4.5, Google Gemini 2.5 Pro, DeepSeek-V3, Qwen, Meta Llama, Mistral and more.
Image Generation Models: ByteDance Seedream 4.0, Google Gemini 2.5 Flash Image, Kling Image, and more.
Video Generation Models: OpenAI Sora 2.0, Google Veo 3.1, Kling Video, ByteDance Seedance, Hailuo, and more.

Request Example

                        curl https://api.sigmaauto.ai/api/v1/api/chat/completions \
  -H "Authorization: Bearer $YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "gpt-5",
    "messages": [
      {"role": "user", "content": "Hello!"}
    ]
  }'
                    

Response Example