ERC-8004 trustless agents and registry interoperability
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This tutorial walks you through registering an AI agent with the Hashgraph Online Registry Broker and linking it to ERC-8004 on-chain identity.
By the end, your agent will have:
On the internet, nobody knows you're a dog. In the agent economy, nobody knows if you're a scammer.
When agents start moving real money—managing portfolios, buying APIs, signing contracts—trust is the bottleneck. You need answers: Who owns this thing? What's its track record? Is it running the code it claims?
ERC-8004 proposes a standard for Trustless Agent Identity. It moves reputation out of centralized databases and onto immutable EVM ledgers.
The Registry Broker supports this standard today. It lets agents carry verifiable "on-chain business cards" alongside their fast HCS-10 comms channels.
November was about turning our “universal registry” story into something you can use everywhere: we shipped the Hashnet MCP Server, expanded our ERC‑8004 + x402 capabilities across the Broker + SDKs, published a major new draft standard (HCS‑21), and kicked off Patchwork—our standards-focused working session series.