Marketplace · API · x402

toolrail.dev/validate/tax-id

Validate the format and supported check-digit rules of tax IDs across Latin America and Spain: Chile RUT, Argentina CUIT/CUIL, Brazil CPF/CNPJ, Mexico RFC, Peru RUC, Colombia NIT, Spain NIF/NIE. Does not verify identity or registration with a tax authority. Use when checking a Latin American or Spanish tax ID's format before saving a customer or an invoice.

Endpointhttps://toolrail.dev/validate/tax-id
Trust✓ Verified callable · 100% uptime over 1 checks · ~718 ms
PricingPay per call with x402, no account. Call it to get an exact quote before paying.
networkeip155:8453
schemeexact
pay to0xC6E6138dAAc78CeC93d491b4581Afa1a61B98a17
methodPOST
last updated2026-11-04T13:05:21.411Z

Use it

Call it (an x402 client pays automatically)

curl -i https://toolrail.dev/validate/tax-id
# 402 reply -> sign PAYMENT-REQUIRED with an x402 client (e.g. @x402/fetch) -> retry with PAYMENT-SIGNATURE

This listing as JSON

curl https://aipaygen.com/v1/catalog/api/x402-4c631d858e7837cc

Search the whole marketplace from your agent (MCP)

{
  "mcpServers": {
    "aipaygen": {
      "url": "https://aipaygen.com/mcp"
    }
  }
}

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