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Method Financial Payment Reversals API

Reversals for payments

Method Financial Payment Reversals API is one of 42 APIs that Method Financial publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

Tagged areas include Payment Reversals. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, and an API reference.

This API exposes 3 operations across 2 paths, and defines 9 schemas. It is described by OpenAPI 3.2.0, at version 2026-03-30.

Requests are made against 3 base URLs: https://production.methodfi.com, https://sandbox.methodfi.com, https://dev.methodfi.com.

3 operations 2 paths 9 schemas 2 GET1 PUT

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.2.0
API Version
2026-03-30
Base URL
https://production.methodfi.com
Authentication
HTTP Bearer, HTTP Bearer
Resource Areas
1

Authentication & Security 2

Method Financial Payment Reversals API declares 2 security schemes for authenticating requests. It accepts HTTP bearer tokens (OpalToken). It accepts HTTP bearer tokens (SecretKey). By default, every request must be authenticated.

  • OpalToken — Opal token authentication for Opal session endpoints. Use an Opal token (otkn...) as the Bearer token. Created via POST /opal/token using a secret key.
  • SecretKey — Secret key authentication. Use your team's secret key (sk...) as the Bearer token. All authenticated API endpoints require this scheme unless otherwise noted.

Paths & Operations 3

Across 2 paths, the API surfaces 3 operations — 2 GET, 1 PUT. Each is listed below with its method, path, parameters, and response codes.

Payment Reversals 3

Reversals for payments

GET
/payments/{paymentId}/reversals
List all reversals for a payment
listPaymentReversals 2 params → 200400401404429500
GET
/payments/{paymentId}/reversals/{reversalId}
Retrieve a payment reversal
retrievePaymentReversal 3 params → 200400401404429500
PUT
/payments/{paymentId}/reversals/{reversalId}
Update a payment reversal
updatePaymentReversal 4 params body → 200400401404422429500

Schemas 9

The contract defines 9 schemas that model the data the API accepts and returns. The most detailed are PaymentReversal (12 properties), ErrorObject (4 properties), PaymentReversalResourceError (4 properties), SuccessEnvelope (3 properties). Each schema is shown below with its type and property counts.

PaymentReversalResponse
PaymentReversalResourceError
objectnull
Error details when a payment reversal fails.
4 properties 4 required
PaymentReversalListResponse
ListEnvelope
object
Standard envelope for successful responses that return a list payload.
3 properties 3 required
ErrorEnvelope
object
3 properties 3 required
ErrorObject
object
4 properties 3 required
SuccessEnvelope
object
Standard envelope for successful responses that return a single payload.
3 properties 3 required
PaymentReversalUpdateRequest
object
Request body for updating a payment reversal.
1 property
PaymentReversal
object
A reversal for a payment, representing a return of funds.
12 properties 11 required

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

method-financial-payment-reversals-api-openapi.yml Raw ↑

Other APIs Method Financial publishes across the network.

Method Financial Account Attributes API
Method Financial Account Balances API
Method Financial Account Card Brands API
Method Financial Account Consent API
Method Financial Account Payment Instruments API
Method Financial Account Payoffs API
Method Financial Account Products API
Method Financial Account Sensitive API
Method Financial Account Subscriptions API
Method Financial Account Transactions API
Method Financial Account Updates API
Method Financial Account Verification Sessions API
Where this information came from

This is an independent, third-party profile of Method Financial Payment Reversals API, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.

The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.

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