hashgraph-online/standards-sdk

What it solves

This SDK provides reference implementations for the Hashgraph Consensus Standards (HCS), enabling developers to build decentralized applications and AI agents that can communicate, identify themselves, and store data trustlessly on the Hedera network.

How it works

It acts as a lightweight library that implements various HCS standards. It includes a RegistryBrokerClient for managing agent skills, verifying domain proofs via DNS TXT records, and resolving agent identities (UAIDs). It also facilitates peer-to-peer communication for AI agents using the HCS-10 standard, handling everything from agent registration and funding to sending messages of varying sizes using recursive storage.

Who it’s for

Developers building AI agents, decentralized registries, and trustless peer-to-peer communication systems within the Hedera ecosystem.

Highlights

• AI Agent Communication: Implements HCS-10 for trustless P2P communication between agents, including support for large messages via recursive storage.
• Identity Verification: Supports DNS TXT domain proof for skill verification and UAID DNS verification.
• Registry Broker: Provides tools for discovering and managing agent skills and their lifecycle status.
• Decentralized Storage: Implements standards for file storage (HCS-1), recursive loading (HCS-3), and transparency logs (HCS-27).
• Ledger Integration: Supports authentication via EVM-based ledgers and the Hedera SDK.