A hosted, read-only Model Context Protocol server that gives an AI voice agent phone intelligence in a single call: who is this inbound caller, and is this outbound number one to think twice about…
Numbers Online — Phone Intelligence is an MCP project maintained in the numbers-online/numbers-online-mcp repository. The maintainer describes its purpose as “A hosted, read-only Model Context Protocol server that gives an AI voice agent phone intelligence in a single call: who is this inbound caller, and…”. Read the project documentation for the complete scope.
The maintainer’s configuration uses https://numbers.online/api/v1/mcp. It declares streamable-http transport. Check the project’s account and authentication instructions when adding the endpoint to your client.
Project documentation · Repository · Discovery listing. This profile records the public documentation checked on 2026-10-08.
Check the linked publisher documentation and your connected client's tool list. Names and availability can vary with the server version and account permissions.
| Tool | What it does |
|---|---|
| phone_lookup | Full bundle — validity, formatting, line type, range carrier, country, caller name (CNAM where available), STIR/SHAKEN verstat, a labeled spam signal… |
| caller_risk | Spam signal + verstat + first-party DNC signal + receipt (no name dip) |
| line_type | Deterministic only — validity, line type (mobile / fixed line / VoIP / …), carrier, country, formatting |
| dnc_check | First-party do-not-contact signal + signed receipt |
{
"mcpServers": {
"numbers-online": {
"type": "streamable-http",
"url": "https://numbers.online/api/v1/mcp",
"headers": {
"Authorization": "YOUR_AUTHORIZATION"
}
}
}
}From the project documentation. Replace placeholders and example paths before connecting.
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