OpenRouter

Unified API gateway to query 200+ AI models (DeepSeek R1, Llama 3, Claude, Mistral) with auto-fallback.

54 API Actions AvailableWebsite ↗

Available API Actions (1)

Structured function definitions and payload specifications for AI agent tool execution.

POSTcompletion_route

Dispatch prompt across optimal LLM model with automatic price and latency routing.

PARAMETERS SCHEMA

Param Name	Type	Required	Description
models	array	Yes	Ranked list of model candidates
messages	array	Yes	Chat context payload

Access GPT-4o, o3-mini, embeddings, and vision models for multi-step reasoning and function calling.

Claude 3.5 Sonnet & Claude 3 Opus models optimized for complex code execution, analysis, and tool use.