One bill. Every LLM provider. 0% markup

Stop juggling API keys and invoices. Fund once, use everywhere. Full observability included at exact provider prices.

370+ people already waiting

Everything you need for better LLM billing

Unified API for 100+ models

Access OpenAI, Anthropic, Google, Meta, and dozens more through a single endpoint. Automatic failover, load balancing, and seamless provider switching.

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100% uptime

Claude down on Anthropic? We route to Bedrock or GCP. Same model, different provider.

Learn about provider routing

Full observability suite

Complete Helicone platform included. Analytics, debugging, monitoring, caching, and more.

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Intelligent routing

Automatically routes to the cheapest provider first. Instant failover on rate limits, timeouts, and errors. Zero-config reliability across 100+ models.

Gateway technical docs

01

Add credits to your account

One-time or recurring top-ups. Your balance works across OpenAI, Anthropic, Google, and 100+ other models. No expiration dates, no provider lock-in.

02

Ship faster with unified API

One endpoint for all providers. Automatic failover, load balancing, and response caching. Switch models without changing code.

import { OpenAI } from "openai";

const client = new OpenAI({
  baseURL: "https://ai-gateway.helicone.ai",
  apiKey: process.env.HELICONE_API_KEY,
});

// Works with any model from any provider
const response = await client.chat.completions.create({
  model: "o3", // or claude-opus-4, gemini-2.5-pro, grok-4, llama-3.3-70b...
  messages: [{ role: "user", content: "Hello!" }]
});

03

0% markup, observability included

Monitor usage, debug errors, analyze performance. Set spending limits, share credits with your team. Everything you need to scale — at exact provider prices. Only standard payment processing fees apply.

Frequently asked questions

How does Credits billing work?

Which providers are supported?

Is observability really included for free?

What's the minimum credit purchase?

Can I bring my own API keys (BYOK)?

When will Credits be available?

Done juggling API keys and invoices?

One integration for 100+ models. Full observability included at exact provider prices.

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