Your very own payroll specialist to modernize how you manage your growing team.

Your very own payroll specialist to modernize how you manage your growing team.


learn more


learn more


learn more

Quality Employee Services that are easy & affordable.
We are experts at serving businesses with 1-100 employees.

GET 2 MONTHs Free!


    (636) 720-0195

    API’s Services Include:

    Payroll & HR Services

    • Complete Tax Filing
    • Direct Deposit / Debit Cards
    • New Hire Reporting
    • Time-off Accruals
    • Certified Payroll
    • Job Costing
    • Internet Access & Processing
    • Employee Web Portal
    • Paperless Payrolls
    • Reports on CD
    • Tips Reporting
    • QuickBooks Interface
    • Time & Attendance
    • Employee Policy Handbooks
    • HR Support
    • Background Checks
    • Workman’s Compensation
    Executive Bonus

    & Key Employee

    • Key Employee
    • Non-Qualified Deferred Compensation
    • Buy-Sell Agreements
    • Long-Term Disability

    API Financial Solutions

    4600 Executive Centre Pkwy,
    St Peters, MO 63376

    (636) 720-0195

    Monday – Friday
    8:00 AM to 5:00 PM

    Send us your questions via email or give us a call at the office.


    About Us

    API Financial Solutions Inc. was founded in 1997 on the idea that all businesses need a payroll service they can trust and afford. Started and headquartered in St. Louis, Missouri, API Financial Solutions, Inc. has grown to become one of the most respected payroll services in the country.

    As a premiere service company, API provides payroll, human resource, and employee benefit services to clients of all sizes throughout the country. We offer a full array of services, from your basic payroll needs to a full service package, including direct deposit, complete tax filing, HR & Benefit Management, and Group Insurance.

    What sets API above our competition is the high level of customer service we provide to each of our clients. We want to ensure three things when you are an API client:

    • When you work with API you are treated as an important client rather than a number. Providing outstanding service to every client is imperative.
    • We strive to provide the latest software interfaces for our clients and their employees which make the process of payroll smooth and efficient.
    • Customer Service is extremely important to API. A ‘live” person actually answers the phone when you call. Our staff is on hand and available to personally answer any question you may have and walk you through each stage of the payroll and benefit processes.