Cielo

Cielo Refunds API

The Cielo Refunds API processes single and batch refund requests against captured transactions. Authentication is OAuth 2.0 Client Credentials issued against a Keycloak realm (MulesoftPRD / MulesoftHML) with 5-minute tokens and mandatory mTLS in production. Endpoints under /cielo-refunds-exp-external/refunds/v1 support POST /refunds, query by refundID and merchantID, paginated listings, and PDF/ZIP letter generation for documentation.

Cielo Refunds API is one of 13 APIs that Cielo publishes on the APIs.io network.

Tagged areas include Refunds, Cancellations, OAuth2, and mTLS. The published artifact set on APIs.io includes API documentation.

GitHub

Documentation

📖
Documentation
https://developercielo.github.io/manual/api-refunds

Other Resources

🔗
Sandbox
https://apihml-internet.cielo.com.br/refunds-api/v1

API entry from apis.yml

apis.yml Raw ↑ 
aid: cielo:cielo-refunds-api
name: Cielo Refunds API
tags:
- Refunds
- Cancellations
- OAuth2
- mTLS
image: https://kinlane-productions2.s3.amazonaws.com/apis-json/apis-json-logo.jpg
baseURL: https://api-internet.cielo.com.br
humanURL: https://developercielo.github.io/manual/api-refunds
description: The Cielo Refunds API processes single and batch refund requests against captured transactions.
  Authentication is OAuth 2.0 Client Credentials issued against a Keycloak realm (MulesoftPRD / MulesoftHML)
  with 5-minute tokens and mandatory mTLS in production. Endpoints under /cielo-refunds-exp-external/refunds/v1
  support POST /refunds, query by refundID and merchantID, paginated listings, and PDF/ZIP letter generation
  for documentation.
properties:
- url: https://developercielo.github.io/manual/api-refunds
  type: Documentation
- url: https://apihml-internet.cielo.com.br/refunds-api/v1
  type: Sandbox