Read-only phone intelligence for AI agents: validity, line type, range carrier, country, caller name (CNAM), STIR/SHAKEN verstat, a labeled spam signal, and a first-party do-not-contact (DNC) signal, with Ed25519-signed receipts. Every field is a supplementary, low-confidence signal; the calling agent keeps every routing and dialing decision.
Numbers Online — phone intelligence
Healthcheck: online
Skills: Caller risk signal, caller-id, carrier, cnam, consent, dnc, Do-not-contact supplementary signal, e164, line-type, phone, Phone number intelligence, risk, spam, stir-shaken, suppression, tcpa, telephony
Protocols: A2A