numberRank
Is a phone number VoIP or a real carrier line? Line type, score and grade, free, no auth.
| Endpoint | https://numberrank.dev/mcp (streamable-http) |
|---|---|
| Registry version | 1.0.0 |
| Now | 2 tools · grade A (99) · pin ts_7bf736923dbcb905697921e19e7247df · protocol 2025-06-18 |
| First / last listed | 2026-10-26 06:17 UTC / 2026-10-26 06:17 UTC |
| Grade over time | 2026-10-26: A (99), 2 tools |
Is this your server? Own a server? ToolFit hosted watch re-checks it every 24 h ($0.25 per 30 days) or 6 h ($0.60) and sends you an HMAC-signed webhook when its tools or grade change: POST https://api.youraitools.co/toolfit/v1/watch. To opt out, see About & opt-out.
Tools: check_number directory
check_number | Tells you whether a phone number is VoIP or a real carrier line, with a 0 to 100 score and letter grade, using Twilio Lookup line type intelligence. Use it before relying on a number for SMS or OTP verification. US numbers can be 10 digits; any other country needs + and the country code. params: number* |
directory | Returns the numberRank directory: AI agent phone providers and personal agents graded by whether their published and provisioned numbers read as real carrier lines or VoIP. Numbers are masked. params: none |
Entries describe changes in tool definitions. They are not statements about a server, its quality or its author. The grade measures how the tool definitions fit model providers (token cost, schema compatibility, confusable names) as scored by the ToolFit engine at the time of the listing. JSON: append .json. Opt-out: how or hello@youraitools.co.