AT Protocol

The AT Protocol is a decentralized data protocol that enables applications to interact with the Atmosphere, a global network of interconnected data and services.

In the AT Protocol, users actually own their data and can choose which applications have access to it. This allows for a more open and interoperable ecosystem, where users can easily switch between applications without losing their data.

In Summary

• Users are identified by their Decentralized Identifier (DID) or their handle. Handles are resolved to DIDs.
• Their DID points to a Personal Data Server (PDS).
• The PDS contains the user's Repository, which is a collection of records.
• Records can be validated per-collection using Lexicons.
• Applications can use OAuth to request access to a user's data.
• Relays listen to changes in Repositories and can be used to build real-time applications.