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.

GitHub

Documentation

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

Other Resources

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

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API entry from apis.yml

apis.yml Raw ↑ 
aid: cielo:cielo-refunds-api
name: Cielo Refunds API
tags:
- Refunds
- Cancellations
- Authentication
- mTLS
tags_raw:
- Refunds
- Cancellations
- OAuth2
- mTLS
image: https://kinlane-images.s3.amazonaws.com/shared/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