MCP server

Numbers Online — phone intelligence Official

online.numbers/numbers-online

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

Read-only phone intelligence for AI voice agents — line type, risk, DNC, signed receipts.

Website Source

At a glance

Type

MCP server

Publisher

numbers.online (verified by the MCP Registry)

Status

Working at last check

Tools

4

Token cost

About 945 tokens per request

Sets up in

Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok

Last checked

26 Oct 2026, 08:29 UTC

Connect it to your agent

Add to CursorAdd to VS CodeVS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http numbers-online https://numbers.online/api/v1/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.numbers-online]
url = "https://numbers.online/api/v1/mcp"

Gemini CLI

{"mcpServers":{"numbers-online":{"httpUrl":"https://numbers.online/api/v1/mcp"}}}

Cursor

{"mcpServers":{"numbers-online":{"url":"https://numbers.online/api/v1/mcp"}}}

VS Code

{"servers":{"numbers-online":{"type":"http","url":"https://numbers.online/api/v1/mcp"}}}

Antigravity

agy mcp add numbers-online https://numbers.online/api/v1/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"numbers-online","server_url":"https://numbers.online/api/v1/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"numbers-online","server_url":"https://numbers.online/api/v1/mcp"}

Tools

• caller_risk ~257 tokens
  Return a labeled, low-confidence risk read for an inbound caller: a spam signal (0–100, higher = riskier), verstat passthrough, and a first-party do-not-contact (DNC) signal — without a name dip. A supplementary input to the agent's own policy, never a verdict on whether to accept or reject the call
• dnc_check ~241 tokens
  Return a first-party do-not-contact signal (suppress / no_match / unknown) for a number, sourced ONLY from suppression preferences registered and verified by the number's own owner inside Numbers Online — never a copy of any government or licensed do-not-call registry. "suppress" = the owner asked n
• line_type ~131 tokens
  Return only the deterministic fields for a number — validity, line type (mobile / fixed line / VoIP / …), range carrier, country, and formatting. No paid dip; a free, fast classification a voice agent can call before deciding to enrich.
• phone_lookup ~316 tokens
  Return a supplementary, low-confidence intelligence bundle for a phone number: validity, formatting, line type, range carrier, country, caller name (CNAM, where available), STIR/SHAKEN verstat (supply the call's verstat to fold it into the spam signal), a labeled spam signal, and a first-party do-no

Browse

• Government and public data

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