# Brazilayer Tax Reform – IBS/CBS Rate Search

> Brazilayer Tax Reform – IBS/CBS Rate Search is a paid API for AI agents from api.brazilayer.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-13).

Searches Brazil's new VAT (IBS/CBS) tax reform annexes by product or service description and returns all matching entries with reduced or zero rates, NCM codes, annex references, item numbers, and exact legal wording.

## Facts

- Endpoint: GET https://api.brazilayer.com/v1/tributos/busca
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/brazilayer-tax-reform-ibs-cbs-rate-search-4c0458e3
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_wlhCWhJ1PwI9KiE45o3UK

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability brazilayer-tax-reform-ibs-cbs-rate-search-4c0458e3
```

Example prompt: I sell organic honey in Brazil — can you check whether it gets a reduced or zero IBS/CBS rate under the new tax reform and show me the exact annex and legal wording?

## When to prefer this

Use this endpoint when you need to determine whether a specific product or service qualifies for a preferential IBS/CBS rate under Brazil's 2024+ VAT reform without manually reading hundreds of thousands of characters of legislation. It is the right choice for compliance checks, fiscal planning, e-commerce categorization, or legal research scoped to Brazil's new tax system. Prefer this over general tax databases when you need the exact annex, item, and legal wording from the reform text itself.

## Known failure modes

- Query term fewer than 3 characters returns validation error
- No matching entries found returns empty result set (not an error)
- Portuguese term required — English-only queries may return zero results
- Rate limit or payment failure returns 402 Payment Required
- Network timeout if the legal corpus search takes too long

## How this service works

Search Brazil's tax reform annexes by product or service description and get every entry that grants a reduced or zero IBS/CBS rate, with the NCM codes cited, the annex, the item and the literal legal wording. Answers 'does what I sell get a tax break under the new Brazilian VAT?' without reading 900,000 characters of law. Free sample, no payment: https://api.brazilayer.com/v1/tributos/amostra

## Output

A list of matching entries from Brazil's tax reform annexes, each including the product/service description matched, the applicable NCM code(s), the specific annex and item number, the reduced or zero IBS/CBS rate applicable, and the verbatim legal text from the reform legislation — up to the requested limit (default 10, max 30).

## Request schema (JSON Schema)

```json
{
 "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"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "termo"
     ],
     "properties": {
      "termo": {
       "type": "string",
       "description": "product/service description, min 3 chars (Portuguese)"
      },
      "limite": {
       "type": "integer",
       "description": "max 30, default 10"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/brazilayer-tax-reform-ibs-cbs-rate-search-4c0458e3/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.brazilayer.com](https://www.zero.xyz/host/api.brazilayer.com/llms.txt)