One API. Every AI Model.

One API. Every AI Model.

Access 14+ AI providers through a single API. OpenAI-compatible format, pay-per-use credits, real-time streaming. No subscriptions, no vendor lock-in.

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Supported Providers

OpenAIAnthropicGoogleMistralDeepSeekGroqTogetherFireworksCoherePerplexityByteDanceVertex AIfal.aiReplicate

Everything you need to integrate AI

A single API key unlocks every major AI model. No more managing multiple provider accounts.

Unified API

One API format compatible with OpenAI's SDK. Switch between providers by changing the model name.

Pay-Per-Use Credits

No monthly subscriptions. Buy credits and pay only for what you use. Transparent pricing with no hidden fees.

Streaming Support

Full Server-Sent Events streaming support for all chat completion models. Real-time token delivery.

14+ Providers

OpenAI, Anthropic, Google, Mistral, DeepSeek, Groq, Together, Fireworks, Cohere, Perplexity, and more.

Simple to integrate

Drop-in replacement for OpenAI. Just change the base URL and API key.

example.ts

const response = await fetch("https://api.apexapi.dev/v1/chat/completions", {
  method: "POST",
  headers: {
    "Authorization": "Bearer ak-your-api-key",
    "Content-Type": "application/json",
  },
  body: JSON.stringify({
    model: "anthropic/claude-sonnet-4-20250514",
    messages: [{ role: "user", content: "Hello!" }],
    stream: true,
  }),
});

Start building with AI today

Create an account, add credits, and make your first API call in under 2 minutes.

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