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Address Validator API

br0ski777/address-validator-x402

The source repository is pretty bare, no README or documentation visible, but the concept is clear enough. This handles postal address validation through a remote API endpoint at klymax402.com. You'd use it when you need to parse messy address strings, verify they match expected postal formats, or detect which country an address belongs to before processing it further. The "x402" suffix and specific API domain suggest this is tied to a particular validation service rather than a generic library. Useful if you're building forms, processing shipping data, or cleaning up address databases and want Claude to handle the validation logic without rolling your own parser for every country's postal quirks.

tool
1
transport
SSE
last updated
May 16, 2026
View on GitHub

Tools

1 tools

Public tool metadata for what this MCP can expose to an agent.

address_validateUse this when you need to parse, validate, or normalize a postal address. Returns structured address components in JSON. Returns: 1. components (street, city, state, postalCode, country) 2. valid (bo1 params

Use this when you need to parse, validate, or normalize a postal address. Returns structured address components in JSON. Returns: 1. components (street, city, state, postalCode, country) 2. valid (bo

Parameters* required
addressstring
Full address string to parse and validate (e.g. '123 Main St, New York, NY 10001')

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Readme

Address Validator API

MCP Server x402 License: MIT

Parse and validate postal addresses -- country detection, component split, postal code verification. US/UK/FR/DE. Pay-per-call via x402 (USDC on Base L2) -- no API key, no signup, no rate-limit wall.

Part of the klymax402 marketplace -- 100 x402 micropayment APIs for AI agents, one wallet, USDC on Base.

Quickstart -- MCP

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

{
  "mcpServers": {
    "address-validator": {
      "url": "https://address-validator.api.klymax402.com/mcp"
    }
  }
}

Quickstart -- HTTP (x402)

curl -X POST "https://address-validator.api.klymax402.com/api/validate" \
  -H "Content-Type: application/json" \
  -d '{"address":"0x0000000000000000000000000000000000dEaD"}'
# -> 402 Payment Required, with an x402 payment challenge in the response body

View the full README on GitHub

Details

Repository
github.com/br0ski777/address-validator-x402
Website
github.com/Br0ski777/address-validator-x402
Transport
SSE
Registry
MCP registry, active

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