API Documentation

ChatX Router is fully compatible with OpenAI, Anthropic, and LiteLLM APIs. Change your base URL and start routing.

Quick Start

Point your existing OpenAI SDK to ChatX Router:

import OpenAI from "openai";

const client = new OpenAI({
  apiKey: "YOUR_API_KEY",
  baseURL: "https://router.yourdomain.com",
});

const response = await client.chat.completions.create({
  model: "anthropic/claude-haiku-4-5",
  messages: [{ role: "user", content: "Hello!" }],
  max_tokens: 1024,
});

console.log(response.choices[0].message.content);

Authentication

All requests require an API key sent via the Authorization header.

Authorization: Bearer YOUR_API_KEY

Generate API keys from the Dashboard under Clients.

OpenAI Endpoints

POST/chat/completions

Chat Completions

Generate text responses from AI models

POST/responses

Responses API

OpenAI Responses API (stateless)

POST/embeddings

Embeddings

Generate vector embeddings for text

GET/models

List Models

List all available models