# Newline Returns API

**Canonical:** https://apis.io/apis/fifth-third-bancorp/newline-returns-api/  
**Provider:** Fifth Third Bancorp — https://apis.io/providers/fifth-third-bancorp/  
**Base URL:** https://sandbox.newline53.com/api/v1  
**Documentation:** https://developers.newline53.com/reference/returns

Newline Returns API is one of 13 APIs that [Fifth Third Bancorp](https://apis.io/providers/fifth-third-bancorp/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. Tagged areas include Returns, ACH, Payments, Exceptions, and United States. The published artifact set on APIs.io includes an OpenAPI specification and an API reference.

Create, list, and retrieve Returns — the reversal of settled payments such as ACH returns — on the Newline platform. Returns move funds back across the originating rail and update the associated Transfer and Transaction records, supporting exception handling in embedded payment programs at Fifth Third Bank.

## Machine-readable artifacts (2)

- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/fifth-third-bancorp/refs/heads/main/openapi/newline-platform-api.json
- **APIReference** — https://developers.newline53.com/reference/returns

## Other Fifth Third Bancorp APIs (12)

- [Newline Auth API](https://apis.io/apis/fifth-third-bancorp/newline-auth-api/)
- [Newline Customers API](https://apis.io/apis/fifth-third-bancorp/newline-customers-api/)
- [Newline Customer Products API](https://apis.io/apis/fifth-third-bancorp/newline-customer-products-api/)
- [Newline Products API](https://apis.io/apis/fifth-third-bancorp/newline-products-api/)
- [Newline Pools API](https://apis.io/apis/fifth-third-bancorp/newline-pools-api/)
- [Newline Custodial Accounts API](https://apis.io/apis/fifth-third-bancorp/newline-custodial-accounts-api/)
- [Newline Synthetic Accounts API](https://apis.io/apis/fifth-third-bancorp/newline-synthetic-accounts-api/)
- [Newline Transfers API](https://apis.io/apis/fifth-third-bancorp/newline-transfers-api/)
- [Newline Combined Transfers API](https://apis.io/apis/fifth-third-bancorp/newline-combined-transfers-api/)
- [Newline Transactions API](https://apis.io/apis/fifth-third-bancorp/newline-transactions-api/)
- [Newline Virtual Reference Numbers API](https://apis.io/apis/fifth-third-bancorp/newline-virtual-reference-numbers-api/)
- [Newline Sandbox API](https://apis.io/apis/fifth-third-bancorp/newline-sandbox-api/)

## Tags

Returns, ACH, Payments, Exceptions, United States

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/fifth-third-bancorp/newline-returns-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/fifth-third-bancorp/.