Marketplace · API · x402

koreakit.celee.workers.dev/v1/validate/brn

Validate the checksum of a South Korea business registration number (사업자등록번호, 10 digits) and classify the entity type (individual, corporation HQ/branch, non-profit). Offline checksum only.

Endpoint	`https://koreakit.celee.workers.dev/v1/validate/brn`
Trust	Not checked yet
Pricing	Pay per call with x402, no account. Call it to get an exact quote before paying.
network	eip155:8453
scheme	exact
pay to	0x1ca5f9Ab0Ca720cc27b076cf9ac8b445654868a5
method	GET
last updated	2026-11-12T10:05:37.1Z

Use it

Call it (an x402 client pays automatically)

curl -i https://koreakit.celee.workers.dev/v1/validate/brn
# 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-f8525d97f14da4b0

Search the whole marketplace from your agent (MCP)

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