> For the complete documentation index, see [llms.txt](https://docs.truecaller.com/truecaller-sdk/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.truecaller.com/truecaller-sdk/android/oauth-sdk-3.0.0/integration-steps/generating-client-id.md).

# Generating Client ID

To ensure the authenticity of interactions between your app and Truecaller, you need to generate a client ID from the Truecaller developer portal by following the steps below:

* Go to <https://sdk-console-noneu.truecaller.com/login> and register your account.
* Once registered, log in to your account and click on the "create project” button.
* Enter the project name and select the business category from the dropdown menu. This will create a new project.
* On the project screen, click the “add credential” button and select the platform as Android from the dropdown menu.
* On the credential section, enter the package name and the SHA1.

<figure><img src="/files/SpafzPekqfp21eLAxwbc" alt=""><figcaption></figcaption></figure>

* Your package name corresponds to the applicationId in your app level `build.gradle` file.

You can get to know the SHA1 for your different app builds by following these steps :

* Open your project in android studio
* Open terminal
* Type command `./gradlew signingReport`

Once done you should be able to see the SHA1 fingerprint of your different build configurations \[ debug /release ] in the terminal window within the android studio.

Once you input your app details and create the app, you will be able to see a unique "ClientID" for your app which you need to include in your project to authorise all verification requests.