Developer Solutions
Automate Check Issuance with Our API
Integrate check printing, mailing, and payment automation into your application in minutes, not months. FiChecks' API gives developers the tools to handle pay vendors by check online, automate accounts payable check printing, and streamline complex payment workflows—all without building from scratch.
Whether you're building a payroll platform, accounting software, marketplace, or fintech app, our REST API supports multiple payment methods—checks, eCheck, ACH, wire transfers, QR codes, and crypto. Full documentation, SDKs for popular languages, and enterprise-grade security come standard.
Speed, security, and flexibility are built in. Start integrating today—questions? reach out to our team.
Why Use FiChecks API
Build payment automation into your application without reinventing the wheel. FiChecks' API gives you the tools to print checks online, send eChecks, process ACH transfers, and accept crypto—all in one integration.
Fast Integration
REST API with clear documentation, SDKs for popular languages, and sandbox environment. Ready to go in minutes, not months.
Multiple Payment Methods
Checks, eCheck, ACH, wire transfers, QR code, and crypto—all in one API. Give your users every payment option they need.
Secure & Compliant
Encryption, authentication, audit trails, and compliance with financial regulations. Your users' data stays protected.
Flexible & Scalable
From single payments to enterprise automation. The API grows with your business, whether you process 10 checks or 10,000 a day.
Use Cases for Developers
FiChecks' API unlocks powerful automation opportunities for developers building SaaS platforms, accounting software, marketplaces, and fintech applications. Instead of reinventing check printing and payment workflows from scratch, you can integrate FiChecks' battle-tested infrastructure directly into your product.
Payroll Automation: SaaS payroll applications can now offer native check printing and mailing without building complex printing infrastructure. Your customers print and mail payroll checks with detailed stubs—gross pay, deductions, net pay, YTD totals—all integrated seamlessly into your payroll flow. This becomes a competitive differentiator and a retention driver for your platform.
Accounting Software Integration: Accounting and bookkeeping platforms can integrate check issuance and vendor payment management directly into their dashboard. Your users manage accounts payable, print checks, send eChecks, or process ACH transfers—all without leaving your application. This reduces friction and increases customer lifetime value by making your platform the single source of truth for financial operations.
Marketplace Payments: Marketplace platforms can automate seller payouts via check, ACH, wire transfer, or even crypto with a single API call. Whether you're paying freelancers, vendors, or contractors, FiChecks handles the payment method diversity so you don't have to. Your sellers get paid their preferred way; you focus on growing your platform.
FiChecks handles the payment method diversity so you don't have to.
Financial Automation & Multi-Method Payments: Fintech applications can offer a complete payment toolkit to their users—checks, eCheck, ACH, wire transfers, QR codes, and crypto (Bitcoin, USDT, USDC)—all through a unified API. Your users get flexibility; you get a faster path to market without managing multiple payment processors. This is especially powerful for invoice management, expense automation, or cross-border payment solutions.
Every integration is backed by FiChecks' secure infrastructure, detailed audit trails, compliance with financial regulations, and comprehensive API documentation. You're not just adding a feature—you're adding a trusted payment backbone to your product. Whether you're building for small businesses, enterprises, or developers, FiChecks' API makes complex payment workflows simple.
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