# 13.2 PTERI Wallet App

## PTERI Wallet App

The PTERI Wallet is the core client application used for identity verification, authentication, and transaction authorization within the PTERI platform.

Unlike traditional wallets, the PTERI Wallet functions as a **universal trust device** used for:

* Identity verification
* Secure authentication
* Transaction approvals
* Cryptographic authorization

All private keys are generated and stored **locally on the user’s device**.

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## Key Capabilities

### Cryptographic Authentication

Users authenticate by signing challenges with their wallet keys.

This replaces traditional authentication systems such as:

* Passwords
* SMS codes
* Authenticator apps

Authentication becomes **cryptographic proof of authority**.

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### Self-Custody Identity

The wallet ensures:

* Keys remain on the user device
* Biometrics protect key access
* No centralized storage of credentials

The platform infrastructure can **verify signatures but cannot impersonate users**.

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### Payments & Authorization

The wallet can authorize:

* Litecoin transactions
* Payment approvals
* Identity-bound intent signing

This allows a single wallet to secure:

* login
* payments
* AI agent authority
* API access

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## Download PTERI Wallet

### iOS

Download from the Apple App Store

{% embed url="<https://apps.apple.com/in/app/pteri-wallet/id6751649780>" %}

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### Android

Download from Google Play

{% embed url="<https://play.google.com/store/apps/details?id=org.kakr.pteri&hl=en_IN&pli=1>" %}

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### Direct Resources

Official Website

{% embed url="<https://www.pteri.org>" %}

Developer Documentation

{% embed url="<https://docs.kakrlabs.com>" %}

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## Developer Integration

Applications integrate with PTERI by verifying wallet signatures.

Typical flow:

User → signs challenge in wallet\
App → sends signature to PTERI API\
API → verifies signature\
Access granted

This removes the need for passwords or shared secrets.

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## Security Principles

PTERI Wallet follows strict security principles:

* Private keys never leave the device
* Hardware-backed storage when available
* Deterministic verificationt
* Litecoin blockchain settlement

The wallet acts as the **user's root of authority** for identity, authentication, and payments.