All servers · Email & messaging
numberRank
dev.numberrank/numberrank · v1.0.0
Measured by MCP Station
| Last check | Reachable |
|---|---|
| Checked at | — |
| Check success 7 / 30 days | — |
| First-try success 30 days | — |
| Median response | — |
| Lookups 30 days | — |
| Authentication | No auth |
| MCP version | 2025-06-18 |
| Rank score | — |
| Declared risk | Read-only (all tools declare readOnlyHint) |
| Capabilities declared | tools |
| Tool definitions | 2 tools · with description 100% · input schema is an object 100% · read/destructive hints 100% |
Description written by the publisher, not verified
Is a phone number VoIP or a real carrier line? Line type, score and grade, free, no auth.
Connect
streamable-http · https://numberrank.dev/mcp
claude mcp add --transport http numberrank https://numberrank.dev/mcp{
"mcpServers": {
"numberrank": {
"url": "https://numberrank.dev/mcp"
}
}
}Tools as reported by the server
check_numberTells 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.directoryReturns 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.
Website · JSON · Text for agents · Registry updated 2026-09-16