# Welcome

Our API is organized around [REST](http://en.wikipedia.org/wiki/Representational_State_Transfer). Our API has predictable resource-oriented URLs, accepts [JSON-encoded](http://www.json.org/) request bodies, returns [JSON-encoded](http://www.json.org/) responses, and uses standard HTTP response codes, authentication, and verbs.

You can use the API for testing, which doesn't affect your live data or interact with the payment schemes. The API key you use to authenticate the request determines whether the request is live mode or test mode.

Our API doesn't support bulk updates. You can work on only one object per request.

{% hint style="info" %}
<https://api.debitdirect.io>
{% endhint %}


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# 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://devs.debitdirect.io/welcome.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.