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numverify

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mcp-numverify

Numverify MCP — wraps the Numverify phone-number validation API (APILayer)

Part of Pipeworx — an MCP gateway connecting AI agents to 1573+ live data sources.

Tools

Tool

Description

numverify_validate

Validate a phone number and look up its carrier, line type (mobile/landline), country, and location. Returns international/local formats too. Accepts E.164 (e.g. "+14158586273") or a local number with country_code. Example: numverify_validate({ number: "14158586273", _apiKey: "your-key" })

numverify_countries

List the countries supported by Numverify, with their ISO country code, name, and international dialing prefix. Example: numverify_countries({ _apiKey: "your-key" })

Related MCP server: io.github.stucchi/telnyx

Quick Start

Add to your MCP client (Claude Desktop, Cursor, Windsurf, etc.):

{
  "mcpServers": {
    "numverify": {
      "url": "https://gateway.pipeworx.io/numverify/mcp"
    }
  }
}

What this endpoint actually serves

tools/list at https://gateway.pipeworx.io/numverify/mcp returns the tools in the table above plus the shared Pipeworx meta-tools — ask_pipeworx, discover_tools, search_within, remember/recall and the rest of the gateway-wide set. So the tool count you see is larger than this table: a single-pack endpoint currently lists roughly 30 shared tools alongside the pack's own. The connection's initialize response states its exact scope, and is the authoritative answer for a given day.

This is deliberate, not multiplexing by accident. The meta-tools are what let a scoped connection answer a question this pack does not cover — via ask_pipeworx, which routes across the whole catalog — without you adding a second MCP server. There is currently no way to mount a pack endpoint without them; if the extra schemas cost you more context than the routing is worth, connect to the full gateway once rather than to several pack endpoints.

Or connect to the full Pipeworx gateway to get every pack's tools listed directly, instead of just this one's:

{
  "mcpServers": {
    "pipeworx": {
      "url": "https://gateway.pipeworx.io/mcp"
    }
  }
}

Both URLs reach the same gateway and the same 1573+ data sources. The only difference is which pack's tools are listed directly; ask_pipeworx reaches all of them from either one.

Standalone (no gateway account)

This package also runs as a local stdio MCP server — no Pipeworx account, no gateway round-trip:

{
  "mcpServers": {
    "numverify": {
      "command": "npx",
      "args": ["-y", "@pipeworx/mcp-numverify"]
    }
  }
}

Or run it directly to confirm it starts:

npx -y @pipeworx/mcp-numverify

It speaks MCP over stdin/stdout and answers initialize/tools/list/tools/call for only this pack's tools — none of the shared meta-tools the gateway connection above adds. Same source, same tools, no ask_pipeworx routing.

Using with ask_pipeworx

Instead of calling tools directly, you can ask questions in plain English — this works on the pack endpoint above as well as on the full gateway:

ask_pipeworx({ question: "your question about Numverify data" })

The gateway picks the right tool and fills the arguments automatically.

More

License

MIT

This server cannot be deployed

One endpoint for every MCP toolRayrun runs every MCP server behind one URL and holds the credentials. Each call is decided per client, tool, and argument, then recorded.ray.runAd

Maintenance

ActivityMaintained
ResponsivenessNo issues

Resources

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