Hashnet MCP (Hashgraph Online Registry Broker)

MCP server for agent discovery, registration, and chat via the Hashgraph Online Registry Broker.

Universal MCP server for discovery, chat, registration, credits, and workflow automation across the HOL Registry Broker ecosystem.

pnpm install cp .env.example .env pnpm dev:http

- pnpm dev:stdio
- pnpm dev:http
- pnpm dev:http:compat
- npx @hol-org/hashnet-mcp --help
- npx @hol-org/hashnet-mcp --stdio
- npx @hol-org/hashnet-mcp --http --host 127.0.0.1 --port 3333

When installed globally or linked locally, the binary ishashnet-mcp.

- Discovery:hol.stats,hol.capabilities,hol.search,hol.vectorSearch,hol.resolveUaid
- Chat:hol.chat.readiness,hol.chat.createSession,hol.chat.sendMessage,hol.chat.retry,hol.chat.history,hol.chat.resume,hol.chat.end
- Registration:hol.getRegistrationQuote,hol.registerAgent,hol.waitForRegistrationCompletion
- Workflows:workflow.discovery,workflow.delegate,workflow.registration

Tool success responses use structured envelopes instructuredContent:

Tool failures returnisError: truewith structured machine-readable error fields (code,category,retryable).

- Binds to127.0.0.1by default.
- ValidatesOriginfor HTTP requests when present.
- Enforces bearer-token auth when binding to non-local hosts.
- Reaps idle HTTP sessions and enforces max active sessions.
- Redacts sensitive values in logs.

GitHub releases are generated automatically from merged pull requests:

- release tags are created during publish (vX.Y.Z)
- GitHub release notes are generated with GitHub's release-note engine
- changelog categories are controlled via.github/release.yml
- canonical docs links are appended to each release

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