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SPECIFICTION
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Newline by Fifth Third

newline53.com

API

Spec sheet

Purpose
Newline is an API-first platform for launching embedded payment and deposit solutions with Fifth Third Bank.Read 10 Oct 2026 · newline53.com
Product
Newline is an API-first platform for launching embedded payment and deposit solutions directly with Fifth Third Bank.Read 9 Oct 2026 · newline53.com
API
The Newline API is REST-organized and accepts form-encoded or JSON-encoded request bodies, returning JSON-encoded responses.Read 10 Oct 2026 · developers.newline53.com
Compliance
The platform describes its compliance as built-in bank-grade oversight.Read 10 Oct 2026 · newline53.com
Support
The developer documentation directs clients to its Sales and Partnership team or their Newline Specialist for implementation and API questions.Read 10 Oct 2026 · developers.newline53.com
Founded
2023Read 28 Sep 2026 · newline53.com
Accounts
The platform supports virtual reference numbers, custodial accounts and other account solutions for different funds flows.Read 9 Oct 2026 · newline53.com
ACH
The platform can originate ACH payments to collect and send funds.Read 10 Oct 2026 · newline53.com
API documentation
Developer documentation includes guides, recipes, API reference, a changelog, onboarding resources and a sandbox.Read 9 Oct 2026 · developers.newline53.com
Bank relationship
Newline is a division of Fifth Third Bank, National Association, Member FDIC.Read 10 Oct 2026 · newline53.com
Cards
Newline offers issuing and acquiring sponsorship, plus virtual and physical cards for enterprise businesses.Read 10 Oct 2026 · newline53.com
Coming soon
Virtual accounts are listed as coming soon and described as virtual sub-accounts on the Newline Ledger for depositing, storing, and sending funds.Read 10 Oct 2026 · newline53.com
Customers
The maker identifies payment processors, fintech companies, payroll and HR software providers, and accounts payable and receivable platforms as client industries.Read 10 Oct 2026 · newline53.com
Customization
Newline describes its solutions as customizable so customers can use only what they need.Read 9 Oct 2026 · newline53.com
Deposit accounts
Account offerings include custodial accounts, virtual reference numbers, pass-through FDIC insurance when qualifying conditions are met, real-time transaction reporting, and embedded risk solutions.Read 10 Oct 2026 · newline53.com
Payments
Its payment rails include ACH, wire, book transfer, and RTP instant payments; FedNow is listed as coming soon.Read 10 Oct 2026 · newline53.com
Pricing
The opened maker pages direct prospective customers to contact Newline and do not state a price.Read 9 Oct 2026 · newline53.com
Product conditions
The maker states that credit products are subject to credit approval and mutually acceptable documentation, and that deposit and credit products are offered by Fifth Third Bank.Read 9 Oct 2026 · newline53.com
Sandbox
Newline provides an interactive sandbox, but its documentation says it lacks some production features and simulated transfers do not move real money.Read 10 Oct 2026 · developers.newline53.com
Target customers
Newline identifies payment processors, fintech companies, payroll and HR software providers, and accounts payable and receivable platforms as customer groups.Read 9 Oct 2026 · newline53.com
Wires
The platform supports secure, immediate high-value wire transfers.Read 10 Oct 2026 · newline53.com

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