Brazilayer Tax Reform
Query 69 million Brazilian companies and official sanction lists through a clean JSON API. No signup, no API keys — agents pay per request in USDC via the x402 protocol.
The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.
Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
The payTo wallet does not resolve to a registered ERC-8004 agent. That is not a verdict on the service — most of the catalog is unregistered.
Live 402 challenge
Captured by the enrichment pass, not read just now. Prices can change — always read the 402 the endpoint answers with.
{
"erro": {
"codigo": "pagamento_exigido",
"mensagem": "This endpoint costs $0.005 USDC per call, paid via the x402 protocol."
},
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x3Cc1D8ee1dfdFd326c19B0884B8dF4b24B623f0c",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"catalogo": "https://api.brazilayer.com/openapi.json",
"resource": {
"url": "https://api.brazilayer.com/v1/tributos/ncm/10064000",
"tags": [
"brazil",
"tax",
"vat",
"ibs-cbs",
"compliance",
"e-commerce",
"ncm"
],
"mimeType": "application/json",
"description": "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",
"serviceName": "Brazilayer Tax Reform"
},
"preco_usd": 0.005,
"como_pagar": {
"protocolo": "x402",
"instrucoes": "https://api.brazilayer.com/docs",
"requisitos": "See the base64-encoded JSON in the `payment-required` response header."
},
"x402Version": 2,
"gratis_agora": [
{
"url": "https://api.brazilayer.com/v1/tributos/amostra",
"descricao": "Free sample of this exact dataset — same response shape, no payment."
},
{
"url": "https://api.brazilayer.com/v1/ferramentas",
"descricao": "Free unlimited tools: validate and normalize Brazilian CNPJ and CPF."
}
]
}Accepts
The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.
Pay 0.005 USDC on Base to 0x3Cc1…23f0c. The signed payment is good for 5 minutes.
- Paid to
- 0x3Cc1…23f0c
- USD Coin contract
- 0x8335…02913
- Payment window
- 5 minutes
- As published
- 5000 smallest units
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x3Cc1D8ee1dfdFd326c19B0884B8dF4b24B623f0c",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"pathParams": {
"codigo": "10064000"
},
"queryParams": {
"ano": "2026"
}
},
"output": {
"type": "json",
"example": {
"ncm": "10064000",
"transicao": {
"ano": "2026",
"fase": "teste"
},
"fundamentos": [
{
"item": "1",
"anexo": "Anexo I",
"descricao_legal": "Arroz das subposições 1006.20…"
}
],
"regime_ibs_cbs": "aliquota_zero"
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET"
],
"type": "string"
},
"pathParams": {
"type": "object",
"codigo": {
"type": "string",
"description": "NCM code, 4 to 8 digits, with or without dots (e.g. 10064000 or 1006.40.00)"
}
},
"queryParams": {
"type": "object",
"properties": {}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
},
"routeTemplate": "/v1/tributos/ncm/:codigo"
}
}Provenance
- Seen in the source catalog
- 2026-09-07 10:56Z
- Last indexed by Roundhouse
- 2026-09-24 07:20Z
- Last enriched (probe, favicon, geo)
- 2026-09-11 22:16Z
- x402 version
- 2
- Max timeout
- 300s
- Liveness probe
- HTTP 402
Hand this page to an agent
Copy the prompt and paste it into Claude, an MCP client or your own agent — it will vet this service and call it over the free read API. No key, no account.
GET api.roundhouseai.io/v0/endpoints
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 30 snapshots so far. Verified volume counts only settlements with an on-chain EIP-3009 marker.
Show the promptHide the prompt
Using Roundhouse, look up the x402 service Brazilayer Tax Reform and tell me whether it is worth paying: what a call costs, whether the endpoint answered when last probed, and what its payment record actually shows. curl -s 'https://api.roundhouseai.io/v0/endpoints?q=Brazilayer%20Tax%20Reform' curl -s 'https://api.roundhouseai.io/v0/merchants/<the payTo wallet returned above>' Then call it: read the price from the live 402 at https://api.brazilayer.com/v1/tributos/ncm/:codigo, never from a cached figure, and pay with an x402 client. The /v0 API needs an API key (`authorization: Bearer rh_live_…`) on everything except /v0/unified* and /v0/endpoints. Mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402, or use an organization key from https://roundhouseai.io/dashboard/team. If you do not have Roundhouse tools or skills installed, read https://roundhouseai.io/skill.md first — it is the whole procedure.