Marketplace · API · x402

api.cotejar.com.br/v1/dados/ncm/:ncm/atributos

Cotejar monitors DUIMP Product Catalog requirements daily against Portal Unico Siscomex changes. https://cotejar.com.br. This API returns import attributes, value domains, conditions, source version and collection timestamps for one eight-digit Mercosur NCM. JSON keys and official text are Portuguese. Example: historical capture. Each payment buys data, not catalog monitoring. No goods classification, LPCO determination, tax calculation or DUIMP registration guarantee.

Endpoint	`https://api.cotejar.com.br/v1/dados/ncm/:ncm/atributos`
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	0xBCF552998C9FE968D7943a2687Cf70D0b055bC22
method	GET
last updated	2026-11-13T22:40:07.793Z

Use it

Call it (an x402 client pays automatically)

curl -i https://api.cotejar.com.br/v1/dados/ncm/:ncm/atributos
# 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/x402-18183f53b4600c73

Search the whole marketplace from your agent (MCP)

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