Search / dev.numberrank/numberrank
protogridR0· no sign-inIs a phone number VoIP or a real carrier line? Line type, score and grade, free, no auth.
v1.0.0 · active · website · descriptor JSON · versions
{
"mcpServers": {
"numberrank": {
"type": "http",
"url": "https://numberrank.dev/mcp"
}
}
}claude mcp add --transport http numberrank https://numberrank.dev/mcp[mcp_servers.numberrank]
url = "https://numberrank.dev/mcp"
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"numberrank": {
"type": "remote",
"url": "https://numberrank.dev/mcp",
"enabled": true
}
}
}{
"mcpServers": {
"numberrank": {
"type": "http",
"url": "https://numberrank.dev/mcp"
}
},
"deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=numberrank&config=eyJ0eXBlIjoiaHR0cCIsInVybCI6Imh0dHBzOi8vbnVtYmVycmFuay5kZXYvbWNwIn0%3D"
}{
"servers": {
"numberrank": {
"type": "http",
"url": "https://numberrank.dev/mcp"
}
}
}{
"mcpServers": {
"numberrank": {
"httpUrl": "https://numberrank.dev/mcp"
}
}
}extensions:
"numberrank":
enabled: true
name: "numberrank"
type: streamable_http
uri: "https://numberrank.dev/mcp"
timeout: 300
protocol.modernnewest supported version is 2025-11-25; 2026-07-28 not supported, older versions are deprecated until 2027-07-28protocol.statelessonly applies to 2026-07-28 serversprotocol.transportstreamable HTTPprotocol.list_ttlonly applies to 2026-07-28 serversauth.prm, auth.as_metadata, auth.cimdno remote uses OAuthauth.secret_in_urlno templated URLtools.descriptionsevery tool has a descriptiontools.description_lengthdescriptions are concisetools.schemasevery tool has an object input schematools.annotations2 of 2 tools declare readOnlyHint or destructiveHinttools.directory_hintsevery tool declares readOnlyHint, destructiveHint, idempotentHint and openWorldHinttools.token_costabout 243 tokens to load every tooltools.api_dumptools are not a one-to-one API dumpstability.changesno tool changes in 30 daysstability.rug_pullno tool changed its meaning under the same namedeps.known_vulns, deps.mcp_sdk_version, deps.resolvableno npm or PyPI packageNo tool definition changes recorded. A server's first observation is its baseline; later probes record what changes.
Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed. How it is computed.
+dns-namespace +website +reachable +uptime-100% ~updated-34d-ago -no-repository
Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed. How it is computed.
| remote | auth | reachable | uptime 30d | p50 | protocol | last ok |
|---|---|---|---|---|---|---|
https://numberrank.dev/mcp streamable-http | none | yes | 100% | 304 ms | 2025-11-25 | 2026-10-20 |
check_numberread-only | 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. |
directoryread-only | 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. |
Schemas: list_tools.
{
"name": "dev.numberrank/numberrank",
"title": "numberRank",
"$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
"remotes": [
{
"url": "https://numberrank.dev/mcp",
"type": "streamable-http"
}
],
"version": "1.0.0",
"websiteUrl": "https://numberrank.dev",
"description": "Is a phone number VoIP or a real carrier line? Line type, score and grade, free, no auth."
}