Welcome to Senddy
Your money, nobody's business. Private payments that earn yield and work everywhere.
What is Senddy?
Senddy is a privacy-preserving payment platform built on zero-knowledge cryptography. It lets you hold, send, and spend digital dollars privately — with no one able to see your balance, your transactions, or your counterparties. Not even us.
Your money earns yield automatically (roughly 10x what a savings account pays), and you can spend it anywhere with a Senddy Card, Apple Pay, or by sending to anyone with a username.
No crypto knowledge required. Fund your account from a bank, debit card, Venmo, or Cash App. Use it like any other payment app — except everything is private.
Why does this matter?
Your bank sells your transaction data. Venmo broadcasts your payments. Your statement shows every purchase to anyone with access.
Senddy fixes this. Every transaction is verified using zero-knowledge proofs — cryptographic guarantees that your payment is valid without revealing a single detail about it.
For Users
Get started in under a minute. Deposit funds, earn yield, send money to friends, pay bills, and spend at 80M+ merchants — all privately.
- Getting Started — Create your account and make your first payment
- Earning Yield — How your balance grows automatically
- Sending Payments — Send to anyone by username, phone, or QR code
For Developers & Businesses
Add private payments to your app with a Stripe-like developer experience at 80% lower fees. React hooks, REST APIs, and webhooks — integrate in an afternoon.
- Developer Overview — Why Senddy for your business
- Quickstart — Get your first integration running in 5 minutes
- SDK Reference — Full TypeScript SDK documentation
How it works, briefly
- Deposit — Add money from your bank, debit card, or stablecoin wallet
- Transact — Send, receive, or withdraw using proofs that verify validity without revealing details
- Earn — Your balance earns yield from DeFi protocols automatically
Want to go deeper? Read the Architecture section.