Overpay.com
Buy anything with Zcash
Created on 4th December 2025
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Overpay.com
Buy anything with Zcash
The problem Overpay.com solves
It's too hard to buy things with Zcash.
Buy anything with ZEC using Overpay. It's your personal shopper, a crypto-friendly one!
Tell it everything you want to buy. Give it some Zcash. Overpay will buy it for you, from any merchant in the USA. If the items are on Amazon, your order is fulfilled immediately.
I'm Blake and I'm fanatical about using crypto for payments.
Years ago I launched Silk Road 2.0. That was a mistake, I got arrested by the FBI and paid my price. Ten years later, I'm shocked that crypto still doesn't have its de-facto marketplace.
In a future where everyone is paid in crypto, and everything can be purchased with crypto - we no longer need banks. Nor do we need centralized exchanges. That's Satoshi's dream: peer-to-peer payments.
I will continue building Overpay until we can all close our bank accounts. Fundraising: [email protected]
I've been wanting to build a (legal) marketplace for a long time. Thank you to the Zypherpunk sponsors and organizers for helping me prioritize finally writing code for this MVP!
Check out Overpay during this holiday shopping season, I'd love your feedback.
Source code: Github
Challenges I ran into
Developer productivity for Zcash needs a lot of work. We need to make it easy for any Web2 devs to jump in and launch a Zcash-accepting business in less than ten minutes. That's better than what Stripe or anyone else can do!
Overpay's vision is to start as a personal shopper, a "reverse" buyer's market, onboarding vendors as our agents purchase items for our users. Then, we will flip the switch into being the crypto-native eBay.
We are improving Zcash developer experience along the way and will continue to open-source our work - because we believe that if your business accepts Zcash, you'll be on Overpay.com.
Tracks Applied (12)
General Bounty
Network School
Privacy-Preserving AI & Computation
Axelar Network
Cross-Chain Privacy Solutions
Aztec
Privacy Infrastructure & Developer Tools
Electric Coin Company
Private Payments & Transactions
Osmosis
Zcash Data & Analytics
Gemini
Privacy Infrastructure & Developer Tools
Zcash Community Grants
Privacy-Preserving AI & Computation
nillion
Privacy Infrastructure & Developer Tools
Raybot
Privacy-Preserving AI & Computation
NEAR Protocol
General Bounty
Project Tachyon
Private Payments & Transactions
Star Fun
Technologies used
Cheer Project
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