TriNet
TriNet is a Dublin, California-based professional employer organization (PEO) for small and mid-market businesses, founded in 1988 by Martin Babinec and led today by President and CEO Mike Simonds. TriNet delivers full-service HR through a co-employment model — payroll processing, Fortune-500-grade health, retirement and ancillary benefits, workers' compensation, employment-practices liability coverage, compliance and risk management, and strategic HR advisory — to thousands of SMBs across the United States. The company offers two main packages: TriNet PEO (full co-employment) and HR Plus (technology platform plus support). TriNet is publicly traded on the NYSE as TNET with trailing-twelve-month revenue of roughly $5.0B as of FY2025. TriNet exposes its HR Customer Platform through three SwaggerHub-documented API groups — DCP, HRIS, and PEO — covering Employees, Companies, Payroll, Money, and Time-Off domains, with API credentials issued to approved customers and Integration Center partners rather than offered as a fully open developer program; OpenAPI/Swagger, Postman/Insomnia collections, a sandbox, OAuth playground, and webhook management are available to authorized developers. Public 1:1 API access typically requires partner-program qualification and technical review, which is why most TriNet customers consume the platform via the curated Integration Center marketplace (accounting, HRIS, identity, ATS, payroll, benefits and learning partners) or via unified-API aggregators such as Finch, Merge, Apideck and Truto.
Index entry only — little beyond a description and a link, and nothing machine-readable enough for an agent to act on without a human reading the site first.
API Evangelist profiles TriNet the way a machine reads it — 1 machine-readable artifact, pulled from the provider's own public surface and indexed so a developer, an analyst, or an AI agent can evaluate it against every other provider on the network.
Every provider in the network is reduced to the same set of machine-readable artifacts — OpenAPI contracts, event specifications, GraphQL schemas, runnable collections, pricing and rate-limit signals, security posture, OAuth scopes, and the agent surfaces (MCP servers and skills) that let software drive the API on its own. We profile them because the interface is the part of a company you can actually inspect: it is a truer signal of what a provider does than any marketing page. From those artifacts we compute the Kin Score — TriNet scores 14.9/100 (minimal), with a separate agent-readiness read of 0/100 (human only). The full breakdown is below, followed by every artifact we hold — each card links through to its machine-readable definition on apis.io.
Kin Score
This is the API Evangelist rating — a single, repeatable read computed from the artifacts on this page. Green fill is points earned; the red track is points possible, so every bar shows earned-versus-possible at a glance.
Kin Score
How this is scored →scored 2026-07-27 · rubric v0.5
How we profile TriNet
Each block below is one kind of artifact we hold for TriNet. For each we say what it is and why it earns a place in the profile, then list every one we've indexed — capped at two rows, scroll within the panel for the rest.
Security Posture 1
Authentication, domain security, vulnerability disclosure, and trust-center signals — the evidence that a provider takes security seriously enough to document it. We profile it because you can't govern what you can't see.
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Resources
Every other property we hold for TriNet — documentation, portals, status pages, policies, and corporate surface — grouped by the job it does, following the integrator's arc from getting started to running in production.
Get Started 1
Portal, sign-up, and the first successful call
Documentation 5
Reference material describing how the API behaves
Access & Security 1
Authentication, authorization, and security posture
Learn 1
Tutorials, courses, talks, and written guidance
Operate 1
Status, limits, changes, and where to get help
Commercial 2
Pricing, plans, and the legal terms of use
Company 10
The organization behind the API
Scroll within the panel for all 10 ·
Other 7
Properties that don't map to a standard resource type
Scroll within the panel for all 7 ·
← All providers · Data indexed from github.com/api-evangelist/trinet · machine-readable index on apis.io