# What is Bound-Auth

Bound Auth is a passkey-based authentication system that creates self-custodial wallets across BTC, EVM, and Solana - with no seed phrases and no browser extensions required.

## Why it matters

Traditional crypto onboarding requires users to manage seed phrases, install browser extensions, and handle private keys manually. This creates significant friction and security risk.

Bound Auth eliminates this entirely. You sign up like any normal app - but you always maintain full self-custody of your assets. Your keys never leave your device.

## Key properties

* **No seed phrases** - nothing to write down or lose
* **No browser extensions** - works natively in your browser or app
* **Self-custodial** - you always control your own keys
* **Multi-chain** - one login creates wallets across BTC, EVM, and Solana
* **Works across all Bound products** - all features require Bound Auth

{% hint style="success" %}
Bound Auth eliminates the biggest friction point in crypto onboarding - without compromising on self-custody.
{% endhint %}


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