Numbers Online — phone intelligence
Read-only phone intelligence for AI voice agents — line type, risk, DNC, signed receipts.
Connect it
Settings → Connectors → Add custom connector
URL: https://numbers.online/api/v1/mcpSettings → Apps & Connectors → Advanced → Developer mode
Create connector with URL: https://numbers.online/api/v1/mcp{
"mcpServers": {
"numbers-online": {
"url": "https://numbers.online/api/v1/mcp"
}
}
}claude mcp add --transport http numbers-online https://numbers.online/api/v1/mcp{
"servers": {
"numbers-online": {
"type": "http",
"url": "https://numbers.online/api/v1/mcp"
}
}
}4 tools, verified live
phone_lookupread-onlyReturn a supplementary, low-confidence intelligence bundle for a phone number: validity, formatting, line type, range carrier, country, caller name (CNAM, where available), STIR/SHAKEN verstat (supply the call's verstat to fold it into the spam signal), a labeled spam signal, and a first-party do-not-contact (DNC) signal — a suppression preference registered by the number's own owner, never a copy
line_typeread-onlyReturn only the deterministic fields for a number — validity, line type (mobile / fixed line / VoIP / …), range carrier, country, and formatting. No paid dip; a free, fast classification a voice agent can call before deciding to enrich.
caller_riskread-onlyReturn a labeled, low-confidence risk read for an inbound caller: a spam signal (0–100, higher = riskier), verstat passthrough, and a first-party do-not-contact (DNC) signal — without a name dip. A supplementary input to the agent's own policy, never a verdict on whether to accept or reject the call. Supply the call's STIR/SHAKEN verstat to fold it into the signal — a failed validation raises the
dnc_checkread-onlyReturn a first-party do-not-contact signal (suppress / no_match / unknown) for a number, sourced ONLY from suppression preferences registered and verified by the number's own owner inside Numbers Online — never a copy of any government or licensed do-not-call registry. "suppress" = the owner asked not to be contacted on this channel; "no_match" = no suppression preference on record (absence of sup
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