Phone Number Validation API

Overview

Phone Number Validation API is a Model Context Protocol (MCP) server: Validate phone numbers worldwide: carrier, line type, country, E.164. x402. In practice that means any MCP-compatible AI assistant can call Phone Number Validation API's tools directly — the model decides when to use them in a conversation or agent run.

It's a hosted (remote) server — point your client at https://phone-validation.api.klymax402.com/mcp and you're connected, with nothing to install locally. The current release is v1.1.0, published under the MIT license, with source at Br0ski777/phone-validation-x402 on GitHub.

Phone Number Validation API is listed under Development on mcp.site and works with any MCP client — Claude Desktop, Claude Code, Cursor, VS Code, Windsurf, Zed and the rest of the ecosystem — using the install snippets below. If you maintain Phone Number Validation API for Br0ski777, claim this listing to verify ownership, earn the Verified badge, and keep the details current.

Installation

Settings → Connectors → Add custom connector
Name: Phone Number Validation API
URL:  https://phone-validation.api.klymax402.com/mcp