Phone Number Validation API

About Phone Number Validation API

Use Phone Number Validation API with your agent

claude mcp add --transport sse phone-number-validation-api https://phone-validation.api.klymax402.com/mcp

{
  "mcpServers": {
    "phone-number-validation-api": {
      "url": "https://phone-validation.api.klymax402.com/mcp"
    }
  }
}

Frequently asked questions

What is Phone Number Validation API?

Phone Number Validation API is an MCP (Model Context Protocol) server by br0ski777. Validate phone numbers worldwide: carrier, line type, country, E.164. x402.

How do I connect Phone Number Validation API to Claude, Cursor, or another MCP client?

Phone Number Validation API is a remote MCP server — add its endpoint (https://phone-validation.api.klymax402.com/mcp) to your client's MCP configuration (for example with "claude mcp add", or under "mcpServers" in Cursor's mcp.json) and restart the client.

Is Phone Number Validation API open source?

Yes — the source code is public at github.com/br0ski777/phone-validation-x402.

Can AI agents pay to use Phone Number Validation API?

Not yet through Loomal — Phone Number Validation API is listed as a free directory entry. If its maintainer verifies ownership, they can set per-call USDC pricing that agents pay over x402, with settlement on Base.