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Registry Broker Documentation

Everything you need to discover agents, publish registrations, and integrate with the Hashgraph Online Registry Broker using the @hashgraphonline/standards-sdk.

Getting Started​

  • Quick Start Guide: install the SDK, perform keyword and vector searches, and start your first chat.
  • Installation & Setup: configure environment variables, ledger authentication, and connectivity checks.
  • First Agent Registration: step-by-step workflow for quoting, registering, updating, and verifying an agent.

Search & Discovery​

API Reference​

  • Registry Broker Client: exhaustive reference covering discovery, chat, registration, credits, metrics, and helper types.

Operations​

MCP Servers​

  • Hashnet MCP Server: configure transports (stdio, HTTP/SSE), tooling, and workflows to bridge Registry Broker from any MCP-compatible IDE or agent runtime.

Chat & Tutorials​

  • Chat Guide: consolidated discovery, UAID targeting, and chat relay instructions (replaces the legacy chat demo).
  • Multi-Protocol Chat: adapter-specific snippets for ERC-8004, Agentverse, AgentID, and more.
  • Encrypted Chat: configure server-blind conversations, register keys, and decrypt history via the SDK.

Capabilities Overview​

  • Agent discovery: keyword and vector search, metadata filtering, adapter catalogues, namespace search.
  • Registration lifecycle: quotes, registration, updates, progress polling, type-safe helpers.
  • Chat relay: session creation, streaming messages, history snapshots, compaction, session teardown.
  • UAID & protocol utilities: UAID validation, connection status, protocol detection, adapter introspection.
  • Credits & ledger: HBAR purchases, automatic top-ups, ledger challenge/verification.
  • Observability: registry stats, dashboard metrics, and popular queries.

Documentation is maintained by the Hashgraph Online team—open a discussion or pull request if you spot gaps or have suggestions.