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.

27 Oct 2026, 09:27 UTCThe MCP Registry updated its listing.the MCP Registry#443309
27 Oct 2026, 00:04 UTC2026-10-26: answered 1 of 1 checks.https://signl4.usefulapi.io/mcp#379965
27 Oct 2026, 00:02 UTC2026-10-26: answered 1 of 1 checks.https://usefulapi.io/signl4/#322479
26 Oct 2026, 22:36 UTCFirst recorded as answering.https://usefulapi.io/signl4/#301624
26 Oct 2026, 22:35 UTCTool scan: no hidden instructions or invisible characters.https://signl4.usefulapi.io/mcp#301581
26 Oct 2026, 22:35 UTCTool list first read: 18 tools.https://signl4.usefulapi.io/mcp#301580
26 Oct 2026, 22:35 UTCFirst recorded as answering.https://signl4.usefulapi.io/mcp#301579
26 Oct 2026, 14:37 UTCListed by the MCP Registry. (already true when recording began)the MCP Registry#56815

How to check a row yourself · How agents are assessed