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Finicity Account Validation Assistance API

Micro entries and account verification

Finicity Account Validation Assistance API is one of 41 APIs that Finicity publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

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

This API exposes 3 operations across 3 paths, and defines 22 schemas. It is described by OpenAPI 3.2.0, at version 1.43.0.

Requests are made against a single base URL, https://api.finicity.com.

3 operations 3 paths 22 schemas 1 GET2 POST

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.2.0
API Version
1.43.0
Base URL
https://api.finicity.com
Authentication
API Key, API Key
Resource Areas
1

Authentication & Security 2

Finicity Account Validation Assistance API declares 2 security schemes for authenticating requests. An API key is passed in the header as Finicity-App-Key (FinicityAppKey). An API key is passed in the header as Finicity-App-Token (FinicityAppToken). By default, every request must be authenticated.

  • FinicityAppKey — The "Finicity-App-Key" from the developer dashboard
  • FinicityAppToken — A token returned by the /authentication API

Paths & Operations 3

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

Account Validation Assistance 3

Micro entries and account verification

POST
/microentry/v1/customers/{customerId}
Initiate Micro Entries
InitiateMicroAmountDeposits 1 param body → 200400401404409429
POST
/microentry/v1/customers/{customerId}/accounts/{accountId}/amounts
Verify Micro Entries
VerifyMicroAmountDeposits 2 params body → 200400401404
GET
/microentry/v1/customers/{customerId}/accounts/{accountId}
Get Micro Entries Details
GetMicroDepositsDetails 2 params → 200400401404

Schemas 22

The contract defines 22 schemas that model the data the API accepts and returns. The most detailed are ErrorMessage (10 properties), MicroDepositDetails (7 properties), InitiatedMicroDeposit (5 properties), Receiver (5 properties). Each schema is shown below with its type and property counts.

MicroDepositVerificationError
object
2 properties
InitiatedMicroDeposit
object
5 properties
DecimalNumber
number
Decimal number
ErrorMessage
object
10 properties 1 required
AccountId
string
An account ID
RoutingNumber
string
Routing number of receiving bank
MicroDepositVerification
object
A list of amounts
1 property 1 required
Receiver
object
5 properties 4 required
MicroDepositStatus
string
The following values may be returned in the field of a status: "Pending" : Micro entries not yet deposited to customer's account "Completed": Micro entries dep…
InstitutionLoginId
string
An institution login ID (from the account record)
MicroDepositCount
integer
Count of micro entries
VerifiedMicroDeposit
object
2 properties
MicroDepositInitiation
object
3 properties 1 required
AutoVerifiedAccount
integer
This field stores an ID for the linked bank account to verify the microdeposits. It will have a value populated only when the microdeposits are auto verified s…
AssetId
string
An asset ID. Generated by Data Connect or by using the Store Customer Pay Statement API.
MicroDepositStatusDescription
string
Micro entries status description
RailType
string
The Rail (ACH / RTP) used for initiating bank deposit(s).
MicroDepositDetails
object
7 properties
MicroDepositCallbackUrl
string
A callback URL where to receive micro deposit notifications
NoZoneDateTime
string
A date-time without time zone
AccountNumberLast4
string
The last 4 digits of the account number, derived by Mastercard from the account number provided by the financial institution. This is only returned for ACH-ena…
CustomerId
string
A customer ID. See Add Customer API for how to create a customer ID.

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

finicity-account-validation-assistance-api-openapi.yml Raw ↑

Other APIs Finicity publishes across the network.

Finicity Connect
Finicity Verification of Assets (VoA) API
Finicity Verification of Income & Employment (VoIE) API
Finicity Transaction Analysis (Cash Flow) API
Finicity Payments (Account Validation) API
Finicity Open Banking Data Access (FDX)
Finicity Accounts API
Finicity Accounts (Simple) API
Finicity App Registration API
Finicity Authentication API
Finicity Balance Analytics API
Finicity Bank Statements API
Where this information came from

This is an independent, third-party profile of Finicity Account Validation Assistance 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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