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numberRank

dev.numberrank/numberrank · v1.0.0

Is a phone number VoIP or a real carrier line? Line type, score and grade, free, no auth.

Connect Remote server

Terminal
claude mcp add --transport http numberrank https://numberrank.dev/mcp
~/.cursor/mcp.json
{
  "mcpServers": {
    "numberrank": {
      "url": "https://numberrank.dev/mcp"
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "numberrank": {
      "type": "http",
      "url": "https://numberrank.dev/mcp"
    }
  }
}
Claude Desktop
Settings > Connectors > Add custom connector
URL: https://numberrank.dev/mcp

Tools 2 found in our last check

  • 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 coun…

  • 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.

Details

Endpointhttps://numberrank.dev/mcp (Streamable HTTP)
First published16 Sep 2026
Last updated16 Sep 2026
Registry namedev.numberrank/numberrank

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