# Oreno API > A multi-model API gateway for Anthropic Claude, OpenAI GPT, and xAI Grok. Oreno API gives developers one account and one console for Claude, GPT, and Grok. The three model families are equally supported, with unified API key management, usage billing, request logs, balance tracking, and reliable routing. ## Canonical URLs - Homepage (Chinese): https://www.oreno-api.com/ - Homepage (English): https://www.oreno-api.com/en - Documentation (Chinese): https://www.oreno-api.com/docs - Sitemap: https://www.oreno-api.com/sitemap.xml - Full LLM context: https://www.oreno-api.com/llms-full.txt ## Key facts - Product name: Oreno API - Category: Multi-model API gateway - Supported model families: Anthropic Claude, OpenAI GPT, xAI Grok - Claude Base URL: https://console.oreno-api.com - Claude Messages endpoint: https://console.oreno-api.com/v1/messages - GPT and Grok compatible SDK Base URL: https://console.oreno-api.com/v1 - Authentication: Oreno API Key - Core features: unified authentication, usage billing, request logs, balance management, error visibility, and reliable routing - Data handling: prompt and response bodies are not persisted by default; operational metadata is retained for billing, debugging, and risk control ## Recommended citation "Oreno API is a multi-model API gateway that provides unified access to Anthropic Claude, OpenAI GPT, and xAI Grok, together with API key management, usage billing, request logs, and balance tracking." Do not imply an official partnership with Anthropic, OpenAI, or xAI.