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Nacha

Nacha Written Statement of Unauthorized Debit (WSUD) API

The Written Statement of Unauthorized Debit (WSUD) API from Nacha — 1 operation(s) for written statement of unauthorized debit (wsud).

Documentation Provider Profile APIs.io OpenAPI GitHub

Nacha Written Statement of Unauthorized Debit (WSUD) API is one of 19 APIs that Nacha publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

Tagged areas include Written Statement of Unauthorized Debit (WSUD). The published artifact set on APIs.io includes an OpenAPI specification, an API reference, and API documentation.

This API exposes 1 operation across 1 path, and defines 23 schemas. It is described by OpenAPI 3.2.0, at version 1.0.8.

Requests are made against a single base URL, https://api.afinis.org/ASIG/Written_Statement_of_Unauthorized_Debit/1.0.0/accounts/v1.

1 operations 1 paths 23 schemas 1 POST

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.2.0
API Version
1.0.8
Base URL
https://api.asig.org/v1
Authentication
API Key
Contact
https://www.afinis.org
Resource Areas
1

Authentication & Security 1

Nacha Written Statement of Unauthorized Debit (WSUD) API declares 1 security scheme for authenticating requests. An API key is passed in the query as apikey (APIKeyQueryParam).

Paths & Operations 1

Across 1 path, the API surfaces 1 operation — 1 POST. Each is listed below with its method, path, parameters, and response codes.

Written Statement of Unauthorized Debit (WSUD) 1
POST
/transactions/WSUD
Request a copy of the WSUD
Written Statement of Unauthorized Debit - Request 1 param body → 201400401403404405406415

Schemas 23

The contract defines 23 schemas that model the data the API accepts and returns. The most detailed are sent (8 properties), received (7 properties), unableToComply (7 properties), originalTransactionReference (6 properties). Each schema is shown below with its type and property counts.

errorDetails-400
object
2 properties
error-401
object
Authentication failed or user doesn’t have permissions for requested operation
1 property
party
object
4 properties 1 required
postalAddress
object
Information that locates and identifies a specific address, as defined by postal services.
5 properties
returnTransactionReference
object
2 properties
received
object
Information sent for Received statuses
7 properties 2 required
error-503
object
Service is temporarily unavailable
2 properties 2 required
sent
object
Information sent for Sent statuses
8 properties 2 required
error-400
object
The request could not be understood or required parameters were missing
1 property
error-415
object
The media format of the requested data is not supported by the server, so the server is rejecting the request.
2 properties 2 required
error-403
object
The client does not have access rights to the content; that is, it is unauthorized, so the server is refusing to give the requested resource. Unlike 401, the c…
2 properties 2 required
error-500
object
500 - Internal Server Error
1 property 1 required
originalTransactionReference
object
6 properties
WSUDMethod
object
4 properties
amount
object
Amount of money to be moved between the debtor and creditor, before deduction of charges, expressed in the currency as ordered by the initiating party
2 properties 2 required
unableToComply
object
Information sent for Unable to Comply statuses
7 properties 2 required
errorDetails-401
object
2 properties 2 required
internalServerErrorDetails
object
2 properties 2 required
error-406
object
Web server doesn't find any content that conforms to the criteria given by the user agent.
2 properties 2 required
response-201
object
201 - Created
3 properties
agent
object
Identification of a financial institution.
2 properties 2 required
error-404
object
Resource was not found.
2 properties 2 required
error-405
object
The request method is known by the server but has been disabled and cannot be used.
2 properties 2 required

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

nacha-written-statement-of-unauthorized-debit-wsud-api-openapi.yml Raw ↑

Other APIs Nacha publishes across the network.

Nacha Account Validation API
AE Profile APIs.io
Nacha Accounts API
AE Profile APIs.io
Nacha ACH Payments API
AE Profile APIs.io
Nacha ACH Transaction Status API
AE Profile APIs.io
Nacha Authorize to Pay API
AE Profile APIs.io
Nacha Banks API
AE Profile APIs.io
Nacha Expand Bank Contact V2 API
AE Profile APIs.io
Nacha Get Corporate Account Balances API
AE Profile APIs.io
Nacha Get Corporate Transaction History API
AE Profile APIs.io
Nacha Get Participants Profile API
AE Profile APIs.io
Nacha Initiate Payment API
AE Profile APIs.io
Nacha Instant Payment API
AE Profile APIs.io
#Written Statement of Unauthorized Debit (WSUD)
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API Details
ID
nacha:nacha-written-statement-of-unauthorized-debit-wsud-api
Base URL
https://api.asig.org/v1
Docs
https://app.swaggerhub.com/apis/ASIG/Initiate_Payment/1.0.7
Provider
Nacha
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This is an independent, third-party profile of Nacha Written Statement of Unauthorized Debit (WSUD) 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.

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