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Socket Joins New OpenJS Program to Fund Node.js Security Work
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phone-validator-mcp
Advanced tools
Validate and format international phone numbers locally. No network and no key.
Validate and format international phone numbers on the local machine with the libphonenumber library. No network, no key.
This file is self contained. It reads public data only and never writes to the machine. All output is bounded and honest about what could not be fetched.
validate Validate a phone number.npm install
npm run build
node dist/index.js
Formatting follows the international E.164 standard. The number is processed entirely locally.
These tools need a license key:
zone_timecountry_contextBuy a key at https://mcp-marketplace.io/server/io-github-mrfentmen-phone-validator-mcp and set it in your MCP client config:
"env": { "MCP_LICENSE_KEY": "mcp_live_..." }
The key is checked against MCP Marketplace, cached for 24 hours, and keeps working offline once one check has succeeded. Every other tool on this server stays free.
FAQs
Validate and format international phone numbers locally. No network and no key.
We found that phone-validator-mcp demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 1 open source maintainer collaborating on the project.

Company News
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