> ## Documentation Index
> Fetch the complete documentation index at: https://www.fastforex.io/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Introduction

> Real-time currency data API for 160+ currencies, 500+ crypto, 2,300+ FX pairs. Fast, simple, reliable.

We provide super-fast JSON responses over HTTPS and streaming over WebSockets.  Make API calls from any HTTP client or browser.

## Your First API Call

The quickest way to check out our API is usually with cURL

```curl theme={null}
curl -H "X-API-Key: YOUR_API_KEY" https://api.fastforex.io/fetch-all
```

[Read the full API docs](/docs/api-reference/currency/fetch-all) for the `/fetch-all` endpoint.

## Get Your 7-day Free Trial API Key

Sign in to get a 7-day Free Trial API key right now at [https://console.fastforex.io](https://console.fastforex.io/auth/signin)

Our trial API keys are fully featured. Up to 1,000,000 API calls, our most up to date data and all API features and base currencies.

## API Playground

Get a feel for our API with our interactive API tool below.

<iframe src="https://playground.fastforex.io/fastforex.html?1235" title="Demo | fastFOREX.io" className="w-full h-96 rounded-xl" height="420px" />

## Find Out More

You can read all about our service and paid plan (it's awesome and just \$18 / month) on our website at [https://www.fastforex.io](https://www.fastforex.io)