BRL Tax Exemption API
The Tax Exemption API from BRL — 1 operation(s) for tax exemption.
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OpenAPI Specification
openapi: 3.2.0
info:
title: Crown API & Webhooks Tax Exemption API
version: 1.0.0
description: 'Open API 3 docs for Crown API
Webhook events that Crown will POST to your configured endpoint URL. All webhooks expect a 200 OK response. Payloads use kebab-case for all keys to match the Crown API conventions.'
servers:
- url: https://app.crown-brlv.com
description: Production server
tags:
- name: Tax Exemption
paths:
/api/v0/tax-exemption/progress:
get:
responses:
'200':
description: Tax exemption progress retrieved successfully
content:
application/json:
schema:
type: object
properties:
tax-exemption-progress:
type: object
properties:
claims-amount:
type: string
format: decimal
other-disposals-amount:
type: string
format: decimal
total-used:
type: string
format: decimal
limit:
type: string
format: decimal
remaining:
type: string
format: decimal
additionalProperties: false
required:
- claims-amount
- other-disposals-amount
- total-used
- limit
- remaining
additionalProperties: false
required:
- tax-exemption-progress
'400':
description: Bad request - Invalid input parameters
content:
application/json:
schema:
type: object
properties:
error:
type: object
properties:
type:
type: string
message:
type: string
code:
type: string
additionalProperties: false
required:
- type
- message
- code
description: Bad request error details
additionalProperties: false
required:
- error
'403':
description: Forbidden - Access denied
content:
application/json:
schema:
type: object
properties:
error:
type: object
properties:
type:
type: string
message:
type: string
code:
type: string
additionalProperties: false
required:
- type
- message
- code
description: Forbidden access error details
additionalProperties: false
required:
- error
'404':
description: Not found - Resource does not exist
content:
application/json:
schema:
type: object
properties:
error:
type: object
properties:
type:
type: string
message:
type: string
code:
type: string
additionalProperties: false
required:
- type
- message
- code
description: Resource not found error details
additionalProperties: false
required:
- error
'422':
description: Unprocessable entity - Validation failed
content:
application/json:
schema:
type: object
properties:
error:
type: object
properties:
type:
type: string
message:
type: string
code:
type: string
additionalProperties: false
required:
- type
- message
- code
description: Validation error details
additionalProperties: false
required:
- error
summary: Get monthly tax exemption progress
description: 'Returns the current month''s tax exemption progress for Brazilian accounts. Shows the breakdown of disposals that count toward the R$35,000 monthly limit: resgates (claims) and outras alienações (burns and BRLV target-wallet transfers).'
tags:
- Tax Exemption
components:
securitySchemes:
JwtAuth:
type: http
scheme: bearer
bearerFormat: JWT
description: JWT-based authentication.
ApiKey:
type: apiKey
in: header
name: X-API-Key
description: Your account API Key
signature:
type: apiKey
in: header
name: X-Crown-Signature
description: HMAC-SHA256 signature of the request body using your webhook secret. Verify this signature to ensure the webhook is from Crown.
x-webhook-security:
note: All webhook requests include an X-Crown-Signature header containing an HMAC-SHA256 signature of the request body. Use your webhook secret (provided when registering the webhook) to verify the signature and ensure the request is authentic.
algorithm: HMAC-SHA256
header: X-Crown-Signature
verification-steps:
- 1. Extract the X-Crown-Signature header from the request
- 2. Compute HMAC-SHA256 of the raw request body using your webhook secret
- 3. Compare the computed signature with the header value
- 4. Only process the webhook if signatures match
example-code:
node-js: "const crypto = require('crypto');\nconst signature = crypto.createHmac('sha256', webhookSecret)\n .update(JSON.stringify(requestBody))\n .digest('hex');\nconst isValid = signature === req.headers['x-crown-signature'];"
python: "import hmac\nimport hashlib\nimport json\n\nsignature = hmac.new(\n webhook_secret.encode('utf-8'),\n json.dumps(request_body).encode('utf-8'),\n hashlib.sha256\n).hexdigest()\nis_valid = signature == request.headers['x-crown-signature']"