# Are you a Third Party Provider (TPP)? Start here!

If you're a PSD2-certified third-party provider (TPP), you can integrate directly with the bunq Public API using your **eIDAS certificate**. This guide walks you through the step-by-step process to register and authenticate with the bunq environment.

{% hint style="danger" %}
PSD2 providers do **not** have access to the bunq Developers Portal. Integration is done entirely through API calls.
{% endhint %}

### 🚀 What Do You Need to Integrate with bunq?

Getting started with the bunq Public API is simple! Here’s what you’ll need to build, test, and simulate your integration from start to finish:

{% hint style="info" %}
If you get stuck or have questions, you can always reach out to [our support team](/support/api-support-team.md). We're here to help!
{% endhint %}

#### 🧪 Test Your Integration with Postman

Want to explore the API before writing a single line of code? We’ve got you covered.

Our official **Postman collection** lets you:

* Send requests to any bunq endpoint
* Simulate real API behavior
* Inspect responses and debug easily
* Automate tests as you go

Perfect for learning the API or validating your integration logic.

You can find more info here:

{% content-ref url="/pages/N4PEtvluykQpcB57RnKI" %}
[Postman](/getting-started/tools/postman.md)
{% endcontent-ref %}

#### 📱 Simulate User Behavior with Our APK

Need to see how things work from a user’s perspective? Use our **bunq APK** to simulate real user actions like logging in, approving payments, or accepting requests.

This is especially useful for:

* End-to-end testing
* Mimicking user approvals for DraftPayments or OAuth flows
* Validating UX before going live

Please check here how to use our Android APK:

{% content-ref url="/pages/cTVOKghIW3JAaoiKgWSA" %}
[Android Emulator](/getting-started/tools/android-emulator.md)
{% endcontent-ref %}


---

# 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://doc.bunq.com/psd2/are-you-a-third-party-provider-tpp-start-here.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.