> For the complete documentation index, see [llms.txt](https://docs.zapsign.com.br/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.zapsign.com.br/english/master.md).

# ZapSign Developer Docs

{% columns %}
{% column width="66.66666666666666%" %}
**Integrate with ZapSign in minutes.**

One API call. Documents ready for electronic signature, integrated into your workflow from start to finish.

Create, send, and track documents with security, status visibility, and legal validity — without relying on manual processes.
{% endcolumn %}

{% column width="33.33333333333334%" %}

<figure><img src="/files/VvmxA3LdwVUDr3Aps8c0" alt="" width="375"><figcaption></figcaption></figure>
{% endcolumn %}
{% endcolumns %}

<a href="/spaces/-M4noMoX5ZGb2-RhWjjf-1703796690/pages/W4Gq51bKC24lVKtsWgUU#how-do-i-get-my-api-token" class="button primary">Get your API key</a> <a href="/spaces/-M4noMoX5ZGb2-RhWjjf-1703796690/pages/W4Gq51bKC24lVKtsWgUU" class="button secondary">API Overview</a>

{% hint style="info" %}
If you haven’t yet integrated with ZapSign, we recommend starting with the testing environment (sandbox) by [clicking here](https://sandbox.app.zapsign.com.br/acesso/entrar) to avoid charges.
{% endhint %}

### API Implementation Essentials

<table data-view="cards"><thead><tr><th></th><th></th><th data-type="files"></th><th></th><th data-type="files"></th><th data-hidden data-card-cover data-type="files"></th></tr></thead><tbody><tr><td><strong>REST API:</strong> Use GET and POST. Send and receive data in JSON.</td><td></td><td></td><td></td><td></td><td></td></tr><tr><td><strong>Null Strings:</strong> Do not send <code>null</code> for string fields. Use <code>""</code> or omit the field.</td><td></td><td></td><td></td><td></td><td></td></tr><tr><td><strong>Booleans vs. Strings:</strong> Use real booleans. <code>true</code> and <code>false</code> are not the same as <code>"true"</code> and <code>"false"</code>.</td><td></td><td></td><td></td><td></td><td></td></tr></tbody></table>

### **Time Management**

* **UTC+0 Time Zone:** Our server stores dates and times in the UTC+0 time zone. Most frameworks and browsers automatically perform this conversion when dealing with datetime objects.

### Get help with Ask

Use Ask, our AI assistant, to find quick answers about the ZapSign API.

To get started, click Ask at the top of the page, next to search.

{% hint style="info" %}
For any questions, please contact our support team via [WhatsApp](https://api.whatsapp.com/send?phone=551140401991\&text=Hi,%20I%20would%20like%20to%20speak%20to%20support) or by email at <support@zapsign.com.br>. You can also [speak with our specialists](https://zapsign.co/contact-sales?hsCtaTracking=f29cb894-a383-4ae5-ad40-8567b0f3257e%7C29b2d094-e9d4-4165-b8f3-5c9c26eae155) for customized solutions.
{% endhint %}


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## 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, and the optional `goal` query parameter:

```
GET https://docs.zapsign.com.br/english/master.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

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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.