/ethlisbon

Primary LanguageJavaScript

Slice

Slice is a P2P payment system built on top of Account Abstraction.

The code for this project was created during the ETH Glocal Lisbon 2023 Hackathon.

This project won the Safe prize for best use case of the safe Core SDK.

What is Slice ?

With Slice users can transfer money through Ethereum chain using only a credit card and their social account login (no browser extension). Think Venmo or Cashapp, but decentralised and borderless.

The tech stack is built with Safe Core SDK

  • Authentication : Web3auth
  • Smart Account Wallet : Safe
  • Fiat -> Crypto Onramp : Stripe
  • Gasless transactions : Gelato

Demo

Click here for the live demo

Here is the ETHGlobal showcase page with a demo video

Account Abstraction

Web3Auth

Web2 like authentication and account creation with Safe AuthKit. source

Safe creation (gasless)

Create Smart Contract Wallet with safe ProtocolKit. source

Leverage RelayKit to use Gelato for sponsoring transactions. source

Crypto on-ramp with FIAT

Leverage Safe OnrampKit for crypto onramp using Stripe source

Smart Contracts adresses

  • Polygon tweet
    • Slice.sol => 0xc94650e4857da3d0ea612e079a8b3f7979e5f62a Polygonscan
    • Pay.sol => 0x3Da82bA30848AE6b36FCe965f48c2103efb7c38b Polygonscan
  • Gnosis
    • Slice.sol => 0xc94650e4857Da3d0ea612e079a8B3F7979e5F62A Gnosisscan
    • Pay.sol => 0x3Da82bA30848AE6b36FCe965f48c2103efb7c38b Gnosisscan
  • Optimism
    • Slice.sol => 0xc94650e4857Da3d0ea612e079a8B3F7979e5F62A Gnosisscan
    • Pay.sol => 0x3Da82bA30848AE6b36FCe965f48c2103efb7c38b Gnosisscan
  • Scroll
  • Linea
    • Slice.sol => 0xc94650e4857Da3d0ea612e079a8B3F7979e5F62A Linea Explorer
    • Slice.sol => 0x3Da82bA30848AE6b36FCe965f48c2103efb7c38b Linea Explorer
  • Goerli