API Reference

AgentRouter provides a unified API gateway compatible with multiple mainstream LLM providers.

Authentication

All API requests require authentication using an API key. You can provide your API key in one of two ways:

Authorization Header

Authorization: Bearer sk-ar-your-api-key

x-api-key Header

x-api-key: sk-ar-your-api-key

Available Endpoints

AgentRouter supports two main API formats:

• OpenAI-Compatible API - Supports OpenAI, DeepSeek, Moonshot, and other providers
• Anthropic-Compatible API - Supports Anthropic, AWS Bedrock, and other providers
• Search - High-authority web search proxy with fixed per-call billing (see details)

Error Handling

The API returns standard HTTP status codes with error messages:

• 400 - Bad Request - Invalid request parameters
• 401 - Unauthorized - Authentication failed
• 402 - Payment Required - Insufficient balance
• 500 - Internal Server Error

Error response formats vary depending on the API type (OpenAI or Anthropic) being used.