addrbookFor publishers
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History

Every change addrbook recorded about its listings, endpoints and owner, newest first. Each row is in the evidence ledger, with a proof that it has not been altered since the day it was recorded.

  1. 2026-10-26: answered 1 of 1 checks.https://protocol-guide.com/api/mcp#344316
  2. 2026-10-26: answered 1 of 1 checks.https://protocol-guide.com/#324480
  3. First recorded as answering.https://protocol-guide.com/#292531
  4. First recorded as answering with an auth challenge.https://protocol-guide.com/api/mcp#292314
  5. Listed by the MCP Registry. (already true when recording began)the MCP Registry#53291

How to check a row yourself · How agents are assessed