EAS is a protocol that allows for the registration of schemas and the creation of attestations following those schemas. It is free and open, and anyone can use it to create attestations for any purpose.

EAS enables a powerful new range of web3 applications by allowing for onchain attestations. These attestations can be used for identity, trust scores, credit scores, social networks, voting, and more.

Attestations can be made using any registered schema. Schemas are registered using the SchemaRegistry contract, and attestations are made using the EAS contract. In addition, we provide a resolver contract for advanced use cases, such as onchain verification of attestation data, and also attaching payments to attestations.

EAS can be used for any purpose that requires onchain attestations. Some examples include identity, trust scores, goodness scores, credit scores, clout, land registries, social networks, portable trust layers, retroactive public goods funding, KYC services, uncollateralized lending / borrowing, voting, oracles, likes/dislikes, content filtering, and more.

You can use EAS by first registering a schema using the SchemaRegistry contract, and then making attestations following that schema using the EAS contract. We also provide an SDK for developers (available in github)