> ## Documentation Index
> Fetch the complete documentation index at: https://docs.openfinance-hackathon.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Registering Your Client

> Before using the Postman, register your client to start interacting with the Open Finance APIs.

Before you can do anything with the Postman, the first step is to **register your client**.

1. Open the **`/tpp-registration`** request.
2. Attach your **client certificate** and **private key**.
3. Send the request to complete registration.

<img src="https://mintcdn.com/adcb/iy11p_BQeF3AEua1/images/postman/Spotlight_10.png?fit=max&auto=format&n=iy11p_BQeF3AEua1&q=85&s=830ed38ae553ddc70104211f82350dbb" alt="Registration request" className="rounded-lg" width="3842" height="1960" data-path="images/postman/Spotlight_10.png" />

Once successful, Postman will display a **204 No Content** response — confirming that your client is registered.

### Expected Response

If you have followed all the previous steps in setting up  Postman correctly, you will receive a:

**204 No Content** response.

This confirms that your client has been successfully registered and is ready to start interacting with the APIs.