# Systems & Operations

## Production URLs

Use the following URLs to connect to sFOX production APIs. For testing, see Sandbox URLs.

<table><thead><tr><th width="281">API</th><th>URL</th></tr></thead><tbody><tr><td><strong>REST API</strong></td><td><strong><code>https://api.sfox.com</code></strong></td></tr><tr><td><strong>REST API</strong><br>(<a href="/pages/HoUS6l45i8X7tYKJBIbb">Candlestick / OHLCV </a>Data)</td><td><strong><code>https://chartdata.sfox.com</code></strong></td></tr><tr><td><strong>WebSocket API</strong></td><td><strong><code>wss://ws.sfox.com/ws</code></strong></td></tr><tr><td><strong>FIX API - Order Entry</strong></td><td><strong><code>fix.sfox.com:5001</code></strong></td></tr><tr><td><strong>FIX API – Market Data</strong></td><td><strong><code>fix-md.sfox.com:5001</code></strong></td></tr></tbody></table>

## Sandbox URLs

Use the following URLs to test your API connectivity.&#x20;

{% hint style="info" %}
API keys are separate from production. Sign in to the [sandbox interface](https://beta.sfox.com) to create an API key. Contact us at <support@sfox.com> for assistance configuring and funding your sandbox account.
{% endhint %}

{% hint style="warning" %}
Sandbox hosts a subset of order books and liquidity does not reflect production. Sandbox supports all functionality except transfers.
{% endhint %}

<table><thead><tr><th width="281">API</th><th>URL</th></tr></thead><tbody><tr><td><strong>REST API</strong></td><td><strong><code>https://api.staging.sfox.com</code></strong></td></tr><tr><td><strong>WebSocket API</strong></td><td><strong><code>wss://ws.staging.sfox.com/ws</code></strong></td></tr><tr><td><strong>FIX API - Order Entry</strong></td><td><strong><code>fix.staging.sfox.com:5001</code></strong></td></tr><tr><td><strong>FIX API – Market Data</strong></td><td><strong><code>fix-md.staging.sfox.com:5001</code></strong></td></tr></tbody></table>

## Availability Zones

The infrastructure for the sFOX platform is hosted in **US-EAST-1 (AWS)** within multiple availability zones:

* use1-az6
* use1-az1
* use1-az2


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.sfox.com/introduction/systems-and-operations.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.