> For the complete documentation index, see [llms.txt](https://docs.iyzico.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.iyzico.com/en/getting-started/welcome.md).

# Welcome

Authentication for iyzico services aligns with Basic Auth principles, while enhancing security through a precise sequence of encryption techniques, including PKI string, Base64, and SHA-1 hashing.

It is our pleasure to extend a warm welcome to you as you explore our Developer Portal!

An experienced developer or embarking on your integration journey, our iyzico Developer Portal, where we are dedicated to democratize online payments, is meticulously crafted to offer you the tools and support needed for a seamless integration experience.&#x20;

Our commitment lies in ensuring that your integration with iyzico is efficient and hassle-free, while providing your customers with a smooth payment process. Here's what you can expect from our Developer Portal;

<table data-view="cards"><thead><tr><th data-type="content-ref"></th></tr></thead><tbody><tr><td><a href="/en/getting-started/preliminaries.md">Preliminaries</a></td></tr><tr><td><a href="/en/products/online-payment.md">Products</a></td></tr><tr><td><a href="/en/payment-methods/api.md">Payment Methods</a></td></tr><tr><td><a href="/en/advanced.md">Advanced</a></td></tr><tr><td><a href="/en/platforms.md">Platforms</a></td></tr><tr><td><a href="/en/add-ons.md">Add-ons</a></td></tr></tbody></table>

Whether you are developing an e-commerce platform, a mobile application, or a subscription service, iyzico's Developer Portal serves as your gateway to effortlessly incorporating online payments into your business.

Thank you for joining us, and we look forward to supporting you every step of the way.


---

# Agent Instructions
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## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation by asking a question.

Perform an HTTP GET request on the following URL with the `ask` and `goal` query parameters:

```
GET https://docs.iyzico.com/en/getting-started/welcome.md?ask=<question>&goal=<user_goal>
```

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