MCP server

numberRank Official

dev.numberrank/numberrank

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

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

Website

At a glance

Type

MCP server

Publisher

numberrank.dev (verified by the MCP Registry)

Status

Working at last check

Tools

2

Token cost

About 226 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 numberrank https://numberrank.dev/mcp

Claude Desktop

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

Codex (config.toml)

[mcp_servers.numberrank]
url = "https://numberrank.dev/mcp"

Gemini CLI

{"mcpServers":{"numberrank":{"httpUrl":"https://numberrank.dev/mcp"}}}

Cursor

{"mcpServers":{"numberrank":{"url":"https://numberrank.dev/mcp"}}}

VS Code

{"servers":{"numberrank":{"type":"http","url":"https://numberrank.dev/mcp"}}}

Antigravity

agy mcp add numberrank https://numberrank.dev/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":"numberrank","server_url":"https://numberrank.dev/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"numberrank","server_url":"https://numberrank.dev/mcp"}

Tools

• check_number ~138 tokens
  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.
• directory ~88 tokens
  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.

Browse

• SMS and text messages
• Phone calls

Related MCP servers

• ProWebLook
  19 tools for phone, WhatsApp, email, caller ID, IP geo, blacklist, scraping & SERP
• Numbers Online — phone intelligence
  Read-only phone intelligence for AI voice agents — line type, risk, DNC, signed receipts.
• Abstract Phone
  Abstract Phone MCP — wraps Abstract API Phone Validation…
• Ipqualityscore
  IPQualityScore MCP — wraps the IPQualityScore fraud-prevention API
• Veriphone
  Veriphone MCP — wraps the Veriphone phone-validation API (veriphone.io)
• Telnyx Lookup
  Telnyx Number Lookup MCP — wraps the Telnyx Number Lookup API
• MimirAPI
  Pay-per-call agent tools over x402 (USDC on Base) — no signup or API key.
• Abstract API MCP by usefulapi
  Validate emails, phones, IBAN, VAT; look up IPs and companies; rates, holidays, time via Abstract.

Badge for your README

[![AptLynx](https://aptlynx.net/badge/dev.numberrank/numberrank.svg)](https://aptlynx.net/servers/dev.numberrank/numberrank)

Listing text is written by the maker; AptLynx lists tools and does not vouch for them. Find another tool · Browse by topic · For agents