AbsenceSoft
Stands out: The AbsenceSoft Compliance Engine tracks 200+ federal and state leave and accommodation laws and stacks concurrent leaves, and the Payroll Calculations module applies state paid leave offsets per pay period. The API is publicly documented in OpenAPI 3.1 at absencesoft.stoplight.io, with Employee, Case, Employer and Communications APIs and webhooks.
Watch out: There is no public price, and custom outbound file feeds and API build work cost extra. Payroll Calculations produces estimates and export files, not payments, so payroll still runs in your own system.
Not the right fit for
- Companies outside the US, since the engine covers US federal and state law
- Small businesses that only need PTO tracking
J. J. Keller Leave Manager
Stands out: The vendor pairs the tracker with expert help and says a response comes within one business day. A reference hub compares state and federal requirements inside the product.
Watch out: The free start is not a published paid rate. HRIS integration is claimed without a list of system names. Coverage described is United States leave, including USERRA and state paid and unpaid leave.
Not the right fit for
- Employers outside the United States
- Programs that need a named Workday or ADP connector on the product page
