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.

OtherLiveeip155:8453Exactvia cdp
BrazilTaxVatIbs-cbsCompliance
Calls · 30d
1↓ 7.1%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 30 snapshots so far.
$5.14
Verified settled volume
397 settlements proven x402 by their on-chain EIP-3009 marker.
$0.0050
Listed price
As published in the catalog. Always read the live 402 before paying.
1
Calls · 30d
Upstream's own call count for this endpoint, not ours.
1
Unique payers · 30d
Last called 2026-09-07 10:56Z
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x3Cc1D8ee1dfdFd326c19B0884B8dF4b24B623f0c

The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.

Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Provider

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.

0.005USDC≈ $0.005 USD
on Base · exact scheme

Pay 0.005 USDC on Base to 0x3Cc1…23f0c. The signed payment is good for 5 minutes.

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
Report

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.

Open skill.md
Show 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.