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Fifth Third Bancorp Custodial Accounts API

Fifth Third Bank holds Custodial Accounts and represents funds managed for Customers. Through these endpoints, you can manage balances and track account statuses.**Endpoints:**- GET [List Custodial Accounts: GET /custodial_accounts](https://developers.newline53.com/reference/get_custodial-accounts) - GET [Get a single Custodial Account: GET /custodial_accounts/{uid}](https://developers.newline53.com/reference/get_custodial-accounts-uid)A Custodial Account is the account held by Fifth Third Bank. Custodial Accounts in a Program can only be created for the Service Offerings that have been configured for that Program.A Customer must successfully complete onboarding and pass all KYC/AML checks before their Custodial Accounts can be opened. This endpoint can be used to retrieve the accounts (active and archived) and their balances for your Customers. All funds must be emptied from a Custodial Account before it can be archived.

Fifth Third Bancorp Custodial Accounts API is one of 13 APIs that Fifth Third Bancorp publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

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

This API exposes 4 operations across 4 paths. It is described by OpenAPI 3.2.0, at version 1.0.0.

Requests are made against a single base URL, https://sandbox.newline53.com/api/v1.

4 operations 4 paths 0 schemas 4 GET

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.2.0
API Version
1.0.0
Base URL
https://sandbox.newline53.com/api/v1
Authentication
API Key
Resource Areas
1

Authentication & Security 1

Fifth Third Bancorp Custodial Accounts API declares 1 security scheme for authenticating requests. An API key is passed in the header as Authorization (ApiKeyAuth). By default, every request must be authenticated.

  • ApiKeyAuth — Access token signed with shared HMAC

Paths & Operations 4

Across 4 paths, the API surfaces 4 operations — 4 GET. Each is listed below with its method, path, parameters, and response codes.

Custodial Accounts 4

Fifth Third Bank holds Custodial Accounts and represents funds managed for Customers. Through these endpoints, you can manage balances and track account statuses. Endpoints: - GET…

GET
/custodial_accounts
List Custodial Accounts
7 params → 200
GET
/custodial_accounts/{uid}
Get a single Custodial Account
2 params → 200
GET
/custodial_account_closing_balances
List Custodial Account Closing Balances
8 params → 200400500
GET
/custodial_account_closing_balances/{uid}
Get a single Custodial Account Closing Balance
2 params → 200

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

fifth-third-bancorp-custodial-accounts-api-openapi.yml Raw ↑

Other APIs Fifth Third Bancorp publishes across the network.

Fifth Third Bancorp Auth API
Fifth Third Bancorp Combined Transfers API
Fifth Third Bancorp Customer Products API
Fifth Third Bancorp Customers API
Fifth Third Bancorp Pools API
Fifth Third Bancorp Products API
Fifth Third Bancorp Returns API
Fifth Third Bancorp Sandbox API
Fifth Third Bancorp Synthetic Accounts API
Fifth Third Bancorp Transactions API
Fifth Third Bancorp Transfers API
Fifth Third Bancorp Virtual Reference Numbers API
Where this information came from

This is an independent, third-party profile of Fifth Third Bancorp Custodial Accounts 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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