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Ethereum Attestation Service (EAS)
100%
average score over 2 application evaluations
Open-source infrastructure for creating digital attestations on any subject, supporting trust-building online and onchain, with applications ranging from reputation to governance systems across multiple mainnets.

EAS is an infrastructure public good for making attestations onchain or offchain about anything. It’s open-source, permissionless, and token-free.

Attestations are simply digital signatures on structured data used to build more trust online and onchain. EAS is an open standard where any entity can make attestations about anything. You simply register a schema (or use an existing one) about any topic and make attestations referencing that schema. Additional utilities extend the functionality while making the protocol highly composable and easy to build upon.

This primitive and ledger of attestations will help us decentralize more than just money and assets. We'll be able to coordinate and build reputation systems, voting systems, governance systems, decentralized social media, provenance of goods, knowledge and social graphs, content authenticity platforms, and much much more.

Available Mainnets:

Ethereum, Optimism, Base, Arbitrum, Polygon, Linea, Celo, Scroll

Attestation Examples:

  • Optimism natively integrated EAS into the OP Stack linked by two predeploy addresses. It was used for retropgf3 and other governance use cases.
  • Coinbase uses EAS for their Coinbase Verifications product
  • Gitcoin Passport uses EAS to attest to passport scores and stamps onchain

Ethereum Attestation Service (EAS) History

People donating to Ethereum Attestation Service (EAS), also donated to

Developing web3 tech for nonprofits, with multilingual, zero-fee, crypto donation platforms, referral rewards, NFT collections, and plans for Quadratic Funding and DAO integration.
Praise is a digital platform enhancing community engagement through gratitude, providing insights, reputation scoring, and fostering a cooperative culture with tangible rewards.
Pairwise is an open-source, snapshot-style voting dApp designed to make Web3 community governance engaging and straightforward, reducing voter apathy and improving decision-making efficiency.
Non-profit developer community focused on web3 collaborative learning, hosting regular meetups, talks, and networking events in Asia, with a treasury bootstrapped by hackathon winnings and operating under a donation model.
EAS is an open-source, permissionless service for creating onchain/offchain attestations, aiding in trust verification with smart contracts, development tools, and community use cases like Gitcoin Passport.
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