SFPY

The payments protocol for the future of money

Accept payments in cryptocurrencies without fees or permission. From sending simple payment links to fully customized integrations, SFPY helps you get paid and earn passive income in digital currencies while leaving you in full control of your funds.

Join the defiant ones using SFPY

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Upgrade your payments with the easiest way to get paid in crypto

Create requests denominated in USD and get paid in any compatible digital currency. Do it all for free without any code using the app
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Acme, Inc.

Build on the future of money
Do more with less code by integrating the open SFPY API. Easily create unique payment experiences, connect with millions of customers on the decentralized web and take advantage of the security of a shared, trustable and accessible ledger.

Web 3.0 ready.
Familiar concepts with a new backbone.

Cross currency acceptance —denominate a payment in USD and accept currencies such as ETH, DAI and USDC with an on-chain price feed.

Refunds built in on chain. Easily return part or the full amount of any payment back to your customer's wallet.

Always remain in control of your funds and withdraw them at any time. Convert your receivables into an asset class and earn fees as a liquidity provider. Withdraw as much as you want on your terms. Be your own treasurer.

Introducing Flash Apps

One simple callback. Infinite experiences. Execute entire programs as soon as a payment is made all within a single, atomic block.

Contribute to the permisionless, open app store on the Ethereum network. Whether you're selling NFTs, raising funds through an ICO or selling services online, Flash Apps allow you to focus on what matters. Give your customers a standardized payments experience.

Don't worry about complex rollbacks in case something goes wrong. Atomicity means either the entire app executes, or funds are returned back to your customer. Simply revert execution at any step knowing that your customer will not be charged erroneously.

Instant access to collateral free liquidity

Borrow instantly, easily and for free.

Whether you need to swap collateral or you've found a profitable arbitrage opportunity, don't let access to capital slow you down. Craft your perfect strategy and dip into any available liquidity pool.
Read more about flash loans
Execute your idea on any compatible DeFi protocol for profit provided that the liquidity is returned back with a small taker fee within one atomic transaction block.

All the resources you need to accept tokenized payments

Learn more about the protocol and accept payments through the open source app or integrate payments into your websites with our API

API

Explore our API reference

App

Create and accept payments

Docs

Read through the protocol specifications

Skip to learning how to integrate decentralized payments, write smart contracts to execute flash loans, or build immutable apps with Flash Apps.

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