Docs / Overview

RelayRouter Documentation

RelayRouter is an AI API gateway. One OpenAI-compatible endpoint, https://relayrouter.io/v1, gives you models from OpenAI, Anthropic, Google DeepMind, DeepSeek, MiniMax and Moonshot AI with one API key and one balance.

If your code already speaks the OpenAI API, it already speaks RelayRouter: change the base URL and key, keep everything else. Get your API key and start building.

Quick Start

Point the OpenAI SDK at the gateway and make your first call

LLM / Chat

OpenAI-compatible chat completions with frontier models

Image Generation

Generate images via /v1/images/generations

SDK & Frameworks

OpenAI SDK, LangChain, LiteLLM and other integrations

API Keys

Create and manage your API keys for authentication

API Reference

Endpoints, parameters and response formats

Why RelayRouter?

✓Claude Opus 4.8, Claude Fable 5, GPT-5.5 and Gemini 3.5 in one catalog
✓Three protocols: OpenAI, Anthropic and Gemini compatible endpoints
✓Mainstream model groups are priced 30% or more below official list prices, zero platform fee
✓Pay by credit or debit card via Stripe

Quick Start→