ADP Run API
ADP RUN exposes REST APIs via the ADP Developer Portal, but production access is paid and gated, not self-serve. Each customer must buy the API Central add-on, and every instance needs its own mTLS certificate and credentialing. Marketplace listing adds Sales, Security, and Legal review.
Frequently asked questions
ADP Run scores A+ on the API Report Card. ADP RUN exposes REST APIs via the ADP Developer Portal, but production access is paid and gated, not self-serve. Each customer must buy the API Central add-on, and every instance needs its own mTLS certificate and credentialing. Marketplace listing adds Sales, Security, and Legal review.
ADP Run has a workable official integration path. Most engineering teams can build against it directly. Open API: self-serve, documented, with SDKs
RUN Powered by ADP (commonly 'ADP RUN') is Automatic Data Processing's flagship cloud payroll, tax, and HR product purpose-built for U.S. small businesses with roughly 1 to 49 employees.
Vertical: Enterprise HR / ERP (specifically SMB payroll / HR). Running scheduled and off-cycle payroll with federal, state, and local tax calculation, filing, and W-2/1099 generation (IRS e-filing). 'RUN & DONE' autopilot payroll for clients with stable pay schedules.
9/10 within U.S. small-business payroll. ADP RUN serves 900,000+ small-business clients (ADP itself pays roughly 1 in 6 U.S. workers across all SKUs) and is the most-recognized brand in SMB payroll alongside Intuit QuickBooks Payroll, Gusto, and Paychex.
Yes - RUN Powered by ADP is the canonical system of record for payroll, tax, and workforce data at 900,000+ U.S. small-business employers.
~15+ years as 'RUN Powered by ADP' (ADP itself founded 1949).
ADP API Central is a separately-purchased paid add-on - each RUN customer must purchase it to enable credentials, creating per-customer provisioning friction for SaaS partners. Becoming an ADP Marketplace partner requires Sales, Security, and Legal review plus revenue share - meaningful gatekeeping for indie ISVs. Full sourced list under Sources below.
Common alternatives include QuickBooks Payroll, Gusto, Paychex Flex (and Paychex SurePayroll), OnPay, Square Payroll, Patriot Payroll. Graded alternatives appear under "More from the report card" below.
Grades measure one thing: can a customer's engineering team get their own data out programmatically? We check six things (whether a real API exists, how access is gated, data coverage, auth quality, docs and developer experience, and stability) and roll them into a letter grade. Grades get re-verified, and they only move on evidence.