As of my knowledge cutoff in 2021, Web3 e-commerce software was still in its early stages of development, so there weren't many established options available. However, here are some potential Web3 e-commerce software options that you can consider:
Origin Protocol
Origin Protocol is an open-source platform for creating decentralized marketplaces. It allows buyers and sellers to transact without intermediaries, reducing transaction fees and increasing transparency.
OpenSea
OpenSea is a decentralized marketplace for buying, selling, and discovering NFTs (Non-Fungible Tokens). It offers a wide range of NFTs, from gaming items to digital art.
Gnosis Safe
Gnosis Safe is a secure wallet for managing cryptocurrencies and NFTs. It allows you to store, transfer, and trade your assets with peace of mind.
3Box
3Box is a decentralized identity and data storage solution that enables Web3 applications to store user data in a secure and decentralized manner. This can be useful for e-commerce applications that need to store customer data.
Tatum
Tatum is a blockchain infrastructure provider that offers a suite of tools for building Web3 applications. It includes features such as payment processing, identity verification, and asset management.
Matic Network
Matic Network is a Layer 2 scaling solution for Ethereum that enables faster and cheaper transactions. This can be useful for e-commerce applications that require fast and affordable payments.
Swarm
Swarm is a decentralized storage solution that allows Web3 applications to store and distribute data in a peer-to-peer manner. This can be useful for e-commerce applications that need to store product data and images.
Arweave
Arweave is a decentralized storage solution that uses a unique consensus mechanism to ensure data is stored permanently on the blockchain. This can be useful for e-commerce applications that need to store product data and customer reviews.
IPFS
IPFS (InterPlanetary File System) is a peer-to-peer file sharing protocol that enables Web3 applications to store and share data in a decentralized manner. This can be useful for e-commerce applications that need to store product data and images.
Holochain
Holochain is a distributed computing platform that enables Web3 applications to run on a network of interconnected nodes. This can be useful for e-commerce applications that require high scalability and performance.
Chainlink
Chainlink is a decentralized oracle network that enables Web3 applications to access off-chain data sources in a secure and reliable manner. This can be useful for e-commerce applications that require real-time data, such as market prices.
Uniswap
Uniswap is a decentralized exchange that allows users to trade cryptocurrencies and tokens in a peer-to-peer manner. This can be useful for e-commerce applications that want to accept cryptocurrency payments or offer tokenized loyalty programs.