SurePayroll API
SurePayroll runs a developer portal at developer.surepayroll.com on Azure API Management, but it is partner-oriented: production keys require SurePayroll or Paychex approval. First-party documented endpoints are thin, and payroll data is more commonly pulled through Finch's unified API.
Frequently asked questions
SurePayroll scores A on the API Report Card. SurePayroll runs a developer portal at developer.surepayroll.com on Azure API Management, but it is partner-oriented: production keys require SurePayroll or Paychex approval. First-party documented endpoints are thin, and payroll data is more commonly pulled through Finch's unified API.
SurePayroll has a workable official integration path. Most engineering teams can build against it directly. Open API: self-serve, documented, with SDKs
SurePayroll is an online payroll and small-business HR service founded in 2000 and headquartered in Glenview, Illinois.
Vertical: Enterprise / HR / ERP. Sub-vertical: SMB and household online payroll. Running unlimited scheduled and off-cycle payroll runs for 1–20 employees. Automatic federal, state, and local payroll tax calculation, deposit, and filing (Forms 941, 940, W-2, W-3, 1099-NEC, state UI).
Moderate. SurePayroll served roughly 30,000 small businesses at the time of the Paychex acquisition and has grown materially since (industry estimates and Paychex disclosures put it well into the tens of thousands of active clients).
Employee and household-worker PII (SSN, DOB, home address). Bank account and routing numbers for direct deposit. Wages, salaries, hourly rates, bonuses, commissions, household-employer cash wages.
Founded 2000 (~26 years old as of 2026); the original SaaS payroll provider, predating Gusto (2011) by more than a decade.
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.