ToolVet
77trust / 100

Tributos Ncm

by Brazilayer Tax Reform in Markets & finance

x402 APIPassing, checked 4 h ago

Which IBS/CBS regime applies to a product, by NCM code, under Brazil's tax reform (LC 214/2025): zero rate, 60% reduction or standard, with the LEGAL BASIS returned (annex, item and the literal wording of the law) plus what taxes are in force this year of the 2026-2033 transition. Brazil is replacing 5 taxes; every seller and every buying agent must reclassify. Free sample, no payment: https://api.brazilayer.com/v1/tributos/amostra

GET
https://api.brazilayer.com/v1/tributos/ncm/:codigo
Price
$0.005
per call in USDC
Uptime
100%
last 30 days
Response time
321 ms
689 ms slowest 5%
Last check
Passed
4 h ago, next any minute now

Run a free test callHow to call it

Reliability

All checks passedSome failedAll failedNot checked

Status and outage history · Atom feed

How to call it

GET https://api.brazilayer.com/v1/tributos/ncm/:codigo

Each call costs $0.005 in USDC on Base, paid with the request over x402.

Run a free test callOne unpaid request, the way an agent sends it. You see the payment challenge it gets back. Nothing is charged.

Example request

From the listing.

GET https://api.brazilayer.com/v1/tributos/ncm/:codigo?ano=2026

Example response

The provider's example. We can't check it without paying.

{
  "fundamentos": [
    {
      "anexo": "Anexo I",
      "descricao_legal": "Arroz das subposições 1006.20…",
      "item": "1"
    }
  ],
  "ncm": "10064000",
  "regime_ibs_cbs": "aliquota_zero",
  "transicao": {
    "ano": "2026",
    "fase": "teste"
  }
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.005.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://api.brazilayer.com/v1/tributos/ncm/:codigo?ano=2026'

# x402 v2 sends the challenge base64-encoded in the PAYMENT-REQUIRED header (v1 sends it in the body).
# To read the header:
curl -sS -g -o /dev/null -D - 'https://api.brazilayer.com/v1/tributos/ncm/:codigo?ano=2026' \
  | grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decode
JavaScript: pay and call
// npm i @x402/fetch @x402/evm viem
import { wrapFetchWithPayment, x402Client } from "@x402/fetch";
import { registerExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

// Pays at most $0.005 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.005" });
registerExactEvmScheme(client, { signer: privateKeyToAccount(process.env.EVM_PRIVATE_KEY) });
const pay = wrapFetchWithPayment(fetch, client);

// Not sure it's safe to pay? ToolVet checks it first for $0.005. Pay for that from a separate
// client: this one is capped at $0.005 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fapi.brazilayer.com%2Fv1%2Ftributos%2Fncm%2F%3Acodigo
const res = await pay("https://api.brazilayer.com/v1/tributos/ncm/:codigo?ano=2026");
console.log(res.status, await res.text());
Python: pay and call
# pip install "x402[requests,evm]"
import os
from eth_account import Account
from x402 import x402ClientSync
from x402.http.clients import x402_requests
from x402.mechanisms.evm import EthAccountSigner
from x402.mechanisms.evm.exact.register import register_exact_evm_client

# Pays at most $0.005 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.005"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.get("https://api.brazilayer.com/v1/tributos/ncm/:codigo?ano=2026")
    print(res.status_code, res.text)

Security scan

No findings

We scan names, descriptions and tool definitions for hidden instructions and other prompt-injection patterns.

Recent checks

WhenResultHTTPTimePrice
4 h agoPassed402101 ms$0.005
8 h agoPassed402107 ms$0.005
12 h agoPassed402969 ms$0.005
16 h agoPassed402131 ms$0.005
20 h agoPassed40232 ms$0.005
Show 10 older checks
24 h agoPassed402321 ms$0.005
28 h agoPassed402578 ms$0.005
32 h agoPassed40231 ms$0.005
36 h agoPassed4021.9 s$0.005
39 h agoPassed402101 ms$0.005
43 h agoPassed402344 ms$0.005
47 h agoPassed402544 ms$0.005
2 days agoPassed402535 ms$0.005
2 days agoPassed402557 ms$0.005
2 days agoPassed402560 ms$0.005