Quickstart

This quickstart shows you how to send your first request through the ngrok AI Gateway, which gives your applications a single endpoint for models from OpenAI, Anthropic, Google, and other providers. You sign in to ngrok.ai, buy credits, create an access key, and use the OpenAI SDK to send a request to a GPT model. The same access key works with every built-in provider, and you don’t need an account or API key with any of them.

Making your first request

Purchase credits

Top up at least $5.00. Every request you make requires ngrok.ai credits.

Create your access key

Open Access Keys and create a new key. Copy the key right away—it’s shown only once—and store it somewhere safe. It looks like ng-xxxxx-g1-xxxxx.

Make your first request

Point your OpenAI SDK at the gateway using your access key:

import OpenAI from "openai";

const openai = new OpenAI({
  baseURL: "https://gateway.ngrok.ai/v1",
  apiKey: "ng-xxxxx-g1-xxxxx"
});

const res = await openai.chat.completions.create({
  model: "gpt-4o",
  messages: [{ role: "user", content: "Hello, world!" }]
});

You don’t need to sign up with OpenAI or bring your own keys for this request. ngrok.ai handles the billing for you.

Already have credits and an access key?

Give this to your AI coding agent to complete the SDK integration step automatically.

Open in Cursor

Next steps

Access keys: Understand how keys work and manage them
Credits: How usage is billed
SDK Integration: Connect with OpenAI, Anthropic, and other SDKs
Bring Your Own Keys: Use your own provider API keys for more providers
Use a model you run yourself: Connect Ollama, vLLM, LM Studio, or another private model.

Concepts

Getting Started With

SDKs

Agents

Guides

Observability

Examples

Reference

API Reference

Making your first request

Purchase credits

Create your access key

Make your first request

Already have credits and an access key?

Next steps

​Making your first request

Sign in to app.ngrok.ai

Purchase credits

Create your access key

Make your first request

​Already have credits and an access key?

​Next steps

Making your first request

Already have credits and an access key?

Next steps