Connect numberRank and your agent gets 2 tools, among them check_number, directory. It answers at https://numberrank.dev/mcp over streamable HTTP, and it listed its tools to an anonymous client, so no sign-in was needed for that. Our probes reached it 4 of 4 times since 16 September 2026; the last check, on 22 October 2026, succeeded.
Is a phone number VoIP or a real carrier line? Line type, score and grade, free, no auth.
Description as the publisher wrote it.
| Tool | What it does |
|---|---|
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; Inputs: 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. |
Every block below points at https://numberrank.dev/mcp. Pick your client and copy.
claude mcp add --transport http numberrank https://numberrank.dev/mcp
{
"mcpServers": {
"numberrank": {
"command": "npx",
"args": ["-y", "mcp-remote", "https://numberrank.dev/mcp"]
}
}
}{
"mcpServers": {
"numberrank": {
"url": "https://numberrank.dev/mcp"
}
}
}{
"servers": {
"numberrank": {
"type": "http",
"url": "https://numberrank.dev/mcp"
}
}
}{
"context_servers": {
"numberrank": {
"url": "https://numberrank.dev/mcp"
}
}
}{
"mcpServers": {
"numberrank": {
"serverUrl": "https://numberrank.dev/mcp"
}
}
}{
"mcpServers": {
"numberrank": {
"url": "https://numberrank.dev/mcp"
}
}
}name: numberRank
version: 0.0.1
schema: v1
mcpServers:
- name: numberRank
type: streamable-http
url: https://numberrank.dev/mcp{
"mcpServers": {
"numberrank": {
"httpUrl": "https://numberrank.dev/mcp"
}
}
}{
"mcpServers": {
"numberrank": {
"type": "http",
"url": "https://numberrank.dev/mcp"
}
}
}{
"mcpServers": {
"numberrank": {
"url": "https://numberrank.dev/mcp"
}
}
}goose://extension?url=https%3A%2F%2Fnumberrank.dev%2Fmcp&type=streamable_http&id=numberrank&name=numberRank
It answered our last check on 22 October 2026 in 192 ms. Over 4 checks since 16 September 2026 it answered 4. Status here comes from Neuronto's own probes, not from the publisher.
Yes. It is published by numberrank.dev and served from numberrank.dev, the vendor's own domain: https://numberrank.dev/mcp.
2, as returned by the server's own tools/list on 24 September 2026: check_number, directory.
It answered our last check on 22 October 2026 in 192 ms. Over 4 checks since 16 September 2026 it answered 4.
Put the server under mcpServers in ~/.cursor/mcp.json with the URL https://numberrank.dev/mcp. The exact JSON is above, with the same setup for Claude Code, Claude Desktop, VS Code, Windsurf, Zed, Gemini CLI and the rest.
It listed its tools to an anonymous client, so reading the tool list needs no key. Individual tools can still ask for credentials in their own inputs.
Publisher: dev.numberrank. Endpoint host: numberrank.dev. ARD identifier: urn:air:dev.numberrank:mcp:numberrank.
First indexed 16 September 2026. The tools are exactly what the server returned; nothing on this page
is inferred from its name. Ranking in Neuronto search is never for sale.