A production-ready Ethereum standard for decentralised, interoperable user profiles on EVM blockchains. Like Gravatar lets you set a global avatar once and use it everywhere, ERC-7866 lets you claim a soul-bound username and avatar on-chain — with full control, privacy options, and dApp-specific customization.
Features
- Unique Identities — Claim human-readable usernames (
alice@eth.soul) mapped to your address - Cross-dApp Avatars — Set different avatars per application (gaming, professional, etc.)
- Privacy Control — Mark avatars as public or private with on-chain enforcement
- Multi-Chain Ready — Works across Ethereum, Polygon, Arbitrum, and other EVM chains
- Off-Chain Efficient — Metadata on IPFS/Arweave with minimal on-chain footprint