Skip to content
O

Overpay.com

Buy anything with Zcash

Created on 4th December 2025

O

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

Our source code stands as an example of how to accept shielded Zcash as a business. We also automatically settle Zcash i...Read More

Network School

Privacy-Preserving AI & Computation

Our source code stands as an example of agentic AI spending cryptocurrency, and how to accept shielded Zcash as a busine...Read More
Axelar Network

Axelar Network

Cross-Chain Privacy Solutions

Our source code stands as an example of agentic AI spending cryptocurrency, and how to accept shielded Zcash as a busine...Read More
Aztec

Aztec

Privacy Infrastructure & Developer Tools

Our source code stands as an example of how to accept shielded Zcash as a business. We also automatically settle Zcash i...Read More

Electric Coin Company

Private Payments & Transactions

Our source code stands as an example of how to accept shielded Zcash as a business. We also automatically settle Zcash i...Read More
Osmosis

Osmosis

Zcash Data & Analytics

Data: Our backend watches Zcash UFVK view keys and syncs them into Postgres, we are separating this code to put it in a ...Read More
Gemini

Gemini

Privacy Infrastructure & Developer Tools

Our source code stands as an example of how to accept shielded Zcash as a business. We also automatically settle Zcash i...Read More

Zcash Community Grants

Privacy-Preserving AI & Computation

Our source code stands as an example of how to accept shielded Zcash as a business, using AI personal shoppers powered b...Read More
nillion

nillion

Privacy Infrastructure & Developer Tools

Our source code stands as an example of how to accept shielded Zcash as a business, using AI personal shoppers powered b...Read More

Raybot

Privacy-Preserving AI & Computation

Our source code stands as an example of how to accept shielded Zcash as a business, using AI personal shoppers powered b...Read More
NEAR Protocol

NEAR Protocol

General Bounty

Our source code stands as an example of how to accept shielded Zcash as a business, using AI personal shoppers powered b...Read More

Project Tachyon

Private Payments & Transactions

Our source code stands as an example of how to accept shielded Zcash as a business, using AI personal shoppers powered b...Read More

Star Fun

Cheer Project

Cheering for a project means supporting a project you like with as little as 0.0025 ETH. Right now, you can Cheer using ETH on Arbitrum, Optimism and Base.

Discussion

Builders also viewed

See more projects on Devfolio