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Increase ACH Transfers API

FedACH credit and debit transfers, inbound and outbound.

Increase ACH Transfers API is one of 16 APIs that Increase publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

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

This API exposes 7 operations across 6 paths, and defines 1 schema. It is described by OpenAPI 3.1.0, at version 0.0.1.

Requests are made against 2 base URLs: https://api.increase.com, https://sandbox.increase.com.

7 operations 6 paths 1 schemas 2 GET5 POST

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.1.0
API Version
0.0.1
Base URL
https://api.increase.com
Authentication
HTTP Bearer
Contact
Resource Areas
1

Authentication & Security 1

Increase ACH Transfers API declares 1 security scheme for authenticating requests. It accepts HTTP bearer tokens (bearerAuth). By default, every request must be authenticated.

  • bearerAuth — Increase API key passed as Authorization: Bearer YOURAPIKEY. Keys are environment-scoped (production vs sandbox). OAuth is also supported for platform / Increa…

Paths & Operations 7

Across 6 paths, the API surfaces 7 operations — 2 GET, 5 POST. Each is listed below with its method, path, parameters, and response codes.

ACH Transfers 7

FedACH credit and debit transfers, inbound and outbound.

GET
/ach_transfers
List ACH Transfers
listACHTransfers 2 params → 200
POST
/ach_transfers
Create an ACH Transfer
createACHTransfer body → 200
GET
/ach_transfers/{ach_transfer_id}
Retrieve an ACH Transfer
retrieveACHTransfer 1 param → 200
POST
/ach_transfers/{ach_transfer_id}/approve
Approve an ACH Transfer
approveACHTransfer 1 param → 200
POST
/ach_transfers/{ach_transfer_id}/cancel
Cancel a pending ACH Transfer
cancelACHTransfer 1 param → 200
POST
/inbound_ach_transfers/{inbound_ach_transfer_id}/decline
Decline an Inbound ACH Transfer
declineInboundACHTransfer 1 param → 200
POST
/ach_prenotifications
Create an ACH Prenotification
createACHPrenotification body → 200

Schemas 1

The contract defines 1 schema that model the data the API accepts and returns. The most detailed is ACHTransfer (8 properties). Each schema is shown below with its type and property counts.

ACHTransfer
object
8 properties

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

increase-com-ach-transfers-api-openapi.yml Raw ↑

Other APIs Increase publishes across the network.

Increase Account Numbers API
Increase Accounts API
Increase Bookkeeping API
Increase Card Payments API
Increase Card Profiles API
Increase Cards API
Increase Check Transfers API
Increase Entities API
Increase Events API
Increase External Accounts API
Increase Lockboxes API
Increase Real-Time Payments API