iden3
Iden3 is a self-sovereign privacy protocol in Web3.
What is iden3?
iden3 is a next-generation private access control protocol based on self-sovereign identity, built on the Ethereum blockchain. It uses zk-SNARKs, a battle-tested method for securing privacy, to allow any computational condition to be verified through zero-knowledge proofs. With its native naming service, iden3 enables users in Web3 to transact and carry out on-chain activities more anonymously. The protocol includes an ID sponsor module that lets developers cover blockchain interaction costs for users. Although iden3 started on Ethereum, it is scaling to Layer 2 through zkRollup technology for accessibility.
Web3 dapps and developer tools related to iden3
Discover blockchain applications that are frequently used with iden3.
Ethos
Keyring
Cred Protocol
Attest Protocol
Developer resources from Alchemy
Best Ethereum wallets for developers: complete EVM guide (2025)
Complete 2025 developer guide to Ethereum wallets. Compare EOAs, smart wallets and more for your onchain app.
What is the Ethereum Fusaka upgrade? Dev guide to 12 EIPs
A practical breakdown of the Fusaka upgrade, explaining the 12 core EIPs and how they change data availability, cryptography, gas costs, and validator operations across the Ethereum stack.
CyberConnect achieves massive scale using Alchemy's AA infra
CyberConnect is a web3 social network utilizing blockchain technology to empower users with ownership of their identity, content, and social data.
iden3 alternatives
Explore web3 competitors and apps like iden3.
Stripe Identity
Verite
Web3.bio
SignApp store listings are independently reviewed and written by Alchemy using a combination of inbound submissions, editorial research, public project sources, and third-party directories, including ecosystem data from The Grid under the Open Database License, DefiLlama, DappRadar, Reown, and chain ecosystem pages.
