Welcome to 3xCoder

3xCoder is a unified AI API relay service that provides a single, OpenAI-compatible endpoint for accessing multiple AI models — including OpenAI GPT, Anthropic Claude, Google Gemini, and OpenAI Codex.

What is 3xCoder?

3xCoder acts as an intelligent API relay between your applications and upstream AI providers. Instead of integrating with each provider separately, you use one base URL:

https://api.3xcoder.com

This endpoint is fully compatible with the OpenAI SDK, meaning any tool, library, or application that supports the OpenAI API format works with 3xCoder out of the box.

Key Features

• Multi-Model Access — GPT, Claude, Gemini, Codex through one API
• OpenAI-Compatible — Drop-in replacement for the OpenAI SDK
• Multi-User Management — Create and manage multiple API keys with quotas, rate limits, and usage tracking
• Full API Coverage — Chat completions, images, audio, embeddings, reranking, moderation, and more
• AI Tool Integration — Works with Claude Code, CodeX CLI, Gemini CLI, and popular desktop clients

Quick Start

1. Get your account — 3xCoder is an invite-only service. Contact your sales representative to receive your account credentials.

2. Log in to the dashboard — Visit https://api.3xcoder.com and log in with your credentials.

3. Create an API key — Navigate to the API key management page and create a new key. See Create API Key for details.

4. Start using the API — Use your key with any OpenAI-compatible tool or SDK:

curl https://api.3xcoder.com/v1/chat/completions \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "gpt-4o",
    "messages": [{"role": "user", "content": "Hello!"}]
  }'

Next Steps

• What is an API Relay — Learn how API relays work
• Getting Your Account — How to get started with 3xCoder
• API Reference — Explore all available API endpoints
• Deploy AI Tools — Set up Claude Code, CodeX, or Gemini CLI