Frequently Asked Questions

General Questions

What is UMP?

UMP (Universal Marketplace Protocol) is a decentralized marketplace for physical goods. It uses smart contracts and trusted arbiters to make buying and selling safe and private.

What can I buy/sell on UMP?

You can sell most physical items that can be shipped. However, please check your local laws and our terms of service for restricted items.

Which blockchain does UMP use?

UMP is built on Ethereum and deployed on Base, an Ethereum L2 network. This means we use Ethereum's secure smart contract technology while benefiting from Base's lower transaction costs and faster speeds.

How does UMP ensure the security of my personal information?

UMP uses Hermes-eth to keep your shipping address private and secure when you buy items. This guide explains how it works in simple terms.

Payment Questions

Are there any fees?

UMP does not charge fees for buying or selling.