Zenefits API
A documented REST API exists on the legacy Zenefits and newer TriNet developer portals, but access is partner-gated: you email for a sandbox and production approval can take weeks to months. Most endpoints are read-only and rate limits are not published.
Frequently asked questions
Zenefits scores A+ on the API Report Card. A documented REST API exists on the legacy Zenefits and newer TriNet developer portals, but access is partner-gated: you email for a sandbox and production approval can take weeks to months. Most endpoints are read-only and rate limits are not published.
Zenefits has a workable official integration path. Most engineering teams can build against it directly. Open API: self-serve, documented, with SDKs
Zenefits - officially rebranded TriNet HR Platform (and frequently referenced as 'TriNet Zenefits') after TriNet's February 2022 acquisition of Zenefits from Francisco Partners - is a cloud HRIS, benefits administration, payroll, time tracking, and compliance platform originally built for U.S. small and mid-sized businesses.
Vertical: Enterprise HR / ERP (specifically SMB HRIS, benefits administration, and lightweight payroll). Employee onboarding with offer letters, I-9/E-Verify, W-4, direct deposit, and self-service enrollment.
6/10 today, down from a peak of 8/10 in 2016. Zenefits historically served ~11,000 SMB customers covering ~250,000 employees at its 2015-2016 peak and remained a top-5 'most recognized brand' in SMB HRIS for nearly a decade.
Yes - Zenefits / TriNet HR Platform is the canonical system of record for HR, benefits, payroll, time, and PTO data at thousands of SMB employers.
~13 years (founded 2013, acquired by TriNet February 2022, rebranded TriNet HR Platform / TriNet Zenefits 2022-2023).
Partner approval is manual and slow - 'weeks to months' to receive production API credentials, blocking time-to-integration. OAuth admin-only authorization means non-admin users cannot grant access; integration UX must route through HR admin every time. Full sourced list under Sources below.
Common alternatives include Gusto, Rippling, BambooHR, Justworks, Paychex Flex, Paylocity. 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.