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.

TriNet is profiled on the APIs.io network. Tagged areas include HR, Human Resources, PEO, Professional Employer Organization, and Payroll.

TriNet’s developer surface includes developer portal, documentation, engineering blog, YouTube channel, and 24 more developer resources.

🌐 Visit website 📡 Source on GitHub

14.9/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5

0 APIs

HRHuman ResourcesPEOProfessional Employer OrganizationPayrollBenefitsHRISHCMWorkforce ManagementTime OffComplianceMid-MarketSmall BusinessCo-EmploymentFortune 1000

Kin Score

Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5

Composite quality — 14.9/100 · minimal

Contract Quality 0.0 / 25

Developer Ergonomics 3.9 / 20

Commercial Clarity 4.2 / 20

Operational Transparency 0.0 / 13

Governance 0.0 / 12

Discoverability 6.8 / 10

Agent readiness — 0/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 15

MCP Server 0 / 12

Machine-Readable Auth 0 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/trinet: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Get Started 1

Portal, sign-up, and the first successful call

Portal

Portal

Documentation 5

Reference material describing how the API behaves

Documentation

Documentation

Documentation

Documentation

Documentation

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Learn 1

Tutorials, courses, talks, and written guidance

YouTube

YouTube

Operate 1

Status, limits, changes, and where to get help

Contact

Contact

Commercial 2

Pricing, plans, and the legal terms of use

PrivacyPolicy

PrivacyPolicy

TermsOfService

TermsOfService

Company 10

The organization behind the API

Website

About

Partners

Blog

Newsroom

Careers

InvestorRelations

InvestorRelations

Twitter

Twitter

LinkedIn

Facebook

Facebook

Scroll for all 10

Other 7

Properties that don't map to a standard resource type

Product

Product

Product

Product

Product

Product

Marketplace

Scroll for all 7

Source (apis.yml)

aid: trinet
name: TriNet
description: '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.'
type: Index
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
position: Provider
access: 3rd-Party
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/trinet.png
tags:
- HR
- Human Resources
- PEO
- Professional Employer Organization
- Payroll
- Benefits
- HRIS
- HCM
- Workforce Management
- Time Off
- Compliance
- Mid-Market
- Small Business
- Co-Employment
- Fortune 1000
url: https://raw.githubusercontent.com/api-evangelist/trinet/refs/heads/main/apis.yml
created: '2026-05-25'
modified: '2026-05-25'
specificationVersion: '0.20'
apis: []
common:
- type: DomainSecurity
  url: security/trinet-domain-security.yml
- type: Website
  url: https://www.trinet.com
- type: About
  url: https://www.trinet.com/about-us
- type: Portal
  url: https://developers.trinet.com/
- type: Documentation
  url: https://trinet.portal.swaggerhub.com/
- type: Documentation
  name: TriNet PEO HR Customer Platform APIs (SwaggerHub)
  url: https://trinet.portal.swaggerhub.com/peo
- type: Documentation
  name: TriNet PEO HCM SaaS HR Customer Platform APIs (SwaggerHub)
  url: https://trinet.portal.swaggerhub.com/hris
- type: Documentation
  name: TriNet DCP HR Customer Platform APIs (SwaggerHub)
  url: https://trinet.portal.swaggerhub.com/dcp
- type: Documentation
  name: TriNet API Portal
  url: https://apidocs.trinet.com/
- type: Product
  name: TriNet PEO
  url: https://www.trinet.com/peo
- type: Product
  name: HR Plus
  url: https://www.trinet.com/solutions/hr-plus
- type: Product
  name: Payroll
  url: https://www.trinet.com/hr-services/payroll
- type: Product
  name: Benefits
  url: https://www.trinet.com/hr-services/benefits
- type: Product
  name: Time Off
  url: https://www.trinet.com/hr-services/technology-platform/time-off
- type: Product
  name: Time and Scheduling
  url: https://www.trinet.com/solutions/hr-plus/hr-platform/time-and-scheduling
- type: Integrations
  name: Integration Center
  url: https://www.trinet.com/hr-services/technology-platform/integration-center
- type: Integrations
  name: Integration Center API
  url: https://www.trinet.com/hr-services/technology-platform/integration-center/api
- type: Marketplace
  name: TriNet Marketplace
  url: https://www.trinet.com/hr-services/technology-platform/marketplace
- type: Partners
  name: Marketplace Partners
  url: https://www.trinet.com/partners/marketplace-partners
- type: Blog
  url: https://www.trinet.com/insights
- type: Newsroom
  url: https://www.trinet.com/about-us/newsroom
- type: Careers
  url: https://www.trinet.com/about-us/careers
- type: InvestorRelations
  url: https://investor.trinet.com/
- type: Contact
  url: https://www.trinet.com/contact-us
- type: Twitter
  url: https://twitter.com/TriNet
- type: LinkedIn
  url: https://www.linkedin.com/company/trinet
- type: YouTube
  url: https://www.youtube.com/user/TriNetGroup
- type: Facebook
  url: https://www.facebook.com/TriNet
- type: PrivacyPolicy
  url: https://www.trinet.com/privacy-policy
- type: TermsOfService
  url: https://www.trinet.com/terms-of-use
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

TriNet

Kin Score

Security Posture 1

Trinet Domain Security

Resources

Get Started 1

Documentation 5

Access & Security 1

Learn 1

Operate 1

Commercial 2

Company 10

Other 7

Source (apis.yml)