Iugu Signature API
The Signature API from Iugu — 1 operation(s) for signature.
Work with this as data
Every API here is available over the APIs.io API and to AI agents over MCP.
MCP server
One button, every client — Claude, Cursor, VS Code and the rest.
https://apis.io/mcp
Tools for apis
7 MCP tools reach this
find_apisBrowse and filter every API in the catalog.get_api_artifactsOne API's artifacts, grouped by type.get_openapiThe primary OpenAPI for this API.find_similar_apisAPIs that look like this one.apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.resolveTurn a domain, URL or GitHub org into the provider it belongs to.find_cohortsEvery scored population of providers in the catalog.
Call it yourself
curl for this page
This API
curl "https://apis.io/api/v1/apis/iugu:iugu-signature-api"
All apis
curl "https://apis.io/api/v1/apis?limit=25"Discovery needs no key. Ratings and market analysis are Pro.
Get an API key
Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.
A second provider on the same verified email joins the account you already have.
OpenAPI Specification
openapi: 3.2.0
info:
title: faturas Signature API
version: '1.0'
servers:
- url: https://api.iugu.com/v1
security:
- sec0: []
tags:
- name: Signature
paths:
/signature/validate:
post:
summary: Validate Signature
description: 'Valida uma assinatura digital para ser utilizada. A assinatura é um pré-requisito de algumas requisições na iugu.
Atenção
Para saber como gerar uma assinatura, acesse nossa FAQ de (Autenticação).'
operationId: validate-signature
parameters:
- name: Signature
in: header
description: signature=`<assinatura gerada pela sua chave privada>`
schema:
type: string
default: signature=<assinatura gerada pela sua chave privada>
- name: Request-Time
in: header
description: O padrão deve ser ISO 8601
schema:
type: string
format: date-time
- in: header
name: X-Signature-Token-Id
schema:
type: string
description: Indica explicitamente qual token/chave deve ser utilizado na assinatura da requisição, informando o ID do token desejado. Se omitido, mantém o comportamento atual.
requestBody:
content:
application/json:
schema:
type: object
properties:
RAW_BODY:
type: string
description: 'Mensagem raw para teste ( ex: "{teste: da assinatura}")'
responses:
'200':
description: '200'
content:
application/json:
examples:
Result:
value: '{"message":"Signature check successful","request_body":"{\n \"api_token\":\"767F3F9A59B7BD29F48845A024C8F1001525C773106BAB7527A9C87236839\",\n \"message\":\"anything\"\n}","status":"ok"}'
schema:
type: object
properties:
message:
type: string
example: Signature check successful
request_body:
type: string
example: "{\n \"api_token\":\"767F3F9A59B7BD29F48845A024C8F1001525C773106BAB7527A9C87236839\",\n \"message\":\"anything\"\n}"
status:
type: string
example: ok
'400':
description: '400'
content:
application/json:
examples:
Result:
value: '{}'
schema:
type: object
properties: {}
x-readme:
code-samples:
- language: ruby
code: 'require ''uri''
require ''net/http''
require ''openssl''
url = URI("https://api.iugu.com/v1/signature/validate")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
http.verify_mode = OpenSSL::SSL::VERIFY_NONE
request = Net::HTTP::Post.new(url)
request["Content-Type"] = ''application/json''
request["Signature"] = ''signature=GYbVgjfpwJIR4TQmM+s7TTMXAqguzaHOyXtcudlWi1WERoMcr+W8m/IQWNojfeCehYhbZMR3QkJGhkRgjxIcs6OubQlAtXD88JTJyj8zg/vt9IrhKH4FpqfFsr7RjIrw2TO5Y7b/Vq/pFe8vY8iQsiqOyIGMvVCA43Kh+GuDrp75+n8VA1jOyBGmdeL9ZX//9RTbcOT1lGOhfGBteT3MjWB9LpfPjU9+/7wgSqMy/jE8IAWTjHjExyYwC9AmyqJdULUtVEAxame4XydVKHKfLfW6CWlkrWuN14nL9LSQnkBxCnmszCw5xqLBTjH5U3Xx7xzFRZHlsELwfsKUDR1Aig==''
request["Request-Time"] = ''2022-06-09T16:31:28-03:00''
request.body = "{\n \"api_token\":\"767F3F9A59B7BD29F489E3845A024C8F1001525C773106BAB7527A9C87236839\",\n \"message\":\"anything\"\n}"
response = http.request(request)
puts response.read_body'
samples-languages:
- ruby
tags:
- Signature
components:
securitySchemes:
sec0:
type: apiKey
name: api_token
in: query
x-readme-fauxas: true
x-provenance:
method: searched
source: https://dev.iugu.com/reference
harvested: '2026-10-14'
tool: harvest-readme-openapi.py
note: Assembled verbatim from the OpenAPI definition ReadMe embeds in each operation page of the provider's developer portal; paths and components merged by API title, nothing authored.
assembled_from:
- https://dev.iugu.com/reference/buscar-fatura-por-id-externos-de-subcontas.md
- https://dev.iugu.com/reference/buscar-fatura-por-ids-externos.md
- https://dev.iugu.com/reference/buscar-fatura.md
- https://dev.iugu.com/reference/buscar-um-agendamento-de-pix-automatico.md
- https://dev.iugu.com/reference/cancelar-agendamento-pix-automatico.md
- https://dev.iugu.com/reference/cancelar-pix-automatico.md
- https://dev.iugu.com/reference/cancelar.md
- https://dev.iugu.com/reference/capturar-fatura.md
- https://dev.iugu.com/reference/considerar-fatura-paga-externamente.md
- https://dev.iugu.com/reference/consultar-cancelamento-de-pix-automatico.md
- https://dev.iugu.com/reference/consultar-pix-automatico.md
- https://dev.iugu.com/reference/criar-fatura.md
- https://dev.iugu.com/reference/enviar-por-email.md
- https://dev.iugu.com/reference/gerar-segunda-via.md
- https://dev.iugu.com/reference/listar-cancelamentos-de-pix-automatico.md
- https://dev.iugu.com/reference/listar-faturas.md
- https://dev.iugu.com/reference/listar-pix-automatico.md
- https://dev.iugu.com/reference/pix-automatico-jornada-2.md
- https://dev.iugu.com/reference/reembolsar-fatura.md
- https://dev.iugu.com/reference/solicitar-retentativa-de-agendamento.md
- https://dev.iugu.com/reference/validate-signature.md
merge:
pages: 21
deduped: 20
conflicts_kept_first: 0