Description.
Fiat24 is a financial services platform operated by SR Saphirstein AG, a Swiss fintech company licensed under Article 1b of the Swiss Banking Act and supervised by the Swiss Financial Market Supervisory Authority (FINMA).
The platform connects blockchain wallets with regulated financial services by using Ethereum-based tokens and smart contracts to represent user accounts and fiat balances. Clients access services through a web application that integrates blockchain identity, tokenized deposits, and payment infrastructure.
A user’s account relationship is represented by an ERC-721 NFT that serves as an on-chain identity and gateway to the platform’s financial services. Fiat balances are represented as ERC-20 tokens corresponding to currencies such as CHF, EUR, and USD.
Through this model, Fiat24 provides a bridge between blockchain wallets and traditional payment infrastructure while operating within Swiss fintech regulatory frameworks.
Key Infrastructure.
Blockchain-Based Account Identity
The platform uses Ethereum ERC-721 NFTs as account identifiers, allowing each client relationship to be represented on-chain and used to authenticate access to Fiat24 financial services and APIs.
Tokenized Fiat Deposit System
Fiat balances held within Fiat24 accounts are represented by ERC-20 tokens corresponding to fiat currencies such as CHF, EUR, and USD, enabling blockchain-based accounting and transfers tied to underlying client deposits.
Swiss IBAN Engine
Each user obtains one unique Swiss IBAN account number. Four currencies (EUR, CHF, USD, RMB) are stored in ERC20 form and all bookings are transparent in Blockchain.
Platform Authorization Model
Integrated platforms can access user accounts through an authorization system where clients approve access to balances and identity information using cryptographic signatures tied to their wallet-held NFT identity.
Web3 Banking Application
Fiat24 provides a web application through which users access account services including balance management, payment operations, and compliance actions connected to blockchain-based identity and tokenized funds.
Developer API Infrastructure
The platform offers APIs that allow integrated platforms to retrieve account profiles, balances, and transaction data associated with Fiat24 NFT accounts after user authorization.
Additional Features.
Additional Features
Users can deposit cryptocurrencies into their accounts which are converted into fiat balances and credited to tokenized fiat accounts.
Multi-Currency Account Support
The platform supports balances denominated in multiple fiat currencies including CHF, EUR, and USD through separate tokenized cash tokens.
On-Chain Account Transfers
The platform allows users to transfer tokenized fiat balances between Fiat24 accounts directly on Ethereum.
Wallet-Based Authentication
User authentication and API authorization rely on signatures from Ethereum wallet addresses holding the Fiat24 account NFT.
Non-custodial Security
Users maintain control of their funds and private keys until the exact moment of transaction execution, preserving core Web3 principles.
F24 Utility Token
Native ecosystem utility token for rewards, account upgrades, and preferred account number minting, capped at a 100M max supply.
