Integrate every HR & Payroll system with one API

Ship new integrations in days, not months. Read and write data to all major HR systems with our Unified API.

Trusted by the world’s leading B2B companies

Why leading HR Tech players choose Kombo

One standardized model
Read and write data across any HRIS using the same set of endpoints. Whether it's Workday, SAP SuccessFactors, or UKG Pro, you work with the same data model.
Seamless authentication
Embed our white-labeled connection guide into your product to easily let your customers connect their systems.
Access any data
Map custom fields from any system to your own unified schema. Use remote data to access raw data when you need to access niche fields.
Full visibility
Track sync status, spot authentication issues, and debug problems from the dashboard. Get webhook notifications when things change or need attention.

One data model for every integration

Build to Kombo once and connect to any HRIS. Reading employees, employments, and absences and writing back time off requests, documents, and employee updates works the same whether you're connected to Paycor, Oracle HCM, Personio or BambooHR - same endpoints, same fields, same format.

Same granularity as a direct integration

Our unified API covers most use cases, but every system has its quirks. Use custom fields to map tool-specific data to your schema. Access raw data from the source with remote data. Call the underlying API directly with passthrough for edge cases. All in real-time if needed.

Monitor all your integrations from one place

See sync status, authentication issues, and errors across every customer connection in the dashboard. Searchable logs show you exactly what happened with each API request. Set up webhooks to get notified when errors occur or credentials need attention, so your support team can resolve issues without always having to pull in engineering.

Featured Case Study

How EGYM WELLPASS increases customer adoption with Kombo’s HRIS integrations

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Especially for enterprise companies with thousands of employees and different sub-companies, it makes sales discussions way easier.

Data model library

Employees (HRIS)
The Employee object represents a person in the HRIS. It includes personal information, employment status, job title, work location, legal entity, and manager relationships. Use it to sync workforce data or create new employees using the form endpoints.
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Employments (HRIS)
The Employment object represents the contractual details of an employee's position, including job title, pay rate, pay period, employment type, and effective date. Employees can have multiple employments to track changes over time.
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Groups (HRIS)
The Group object represents organizational units like teams, departments, or cost centers. Employees can belong to multiple groups.
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Work Locations (HRIS)
The WorkLocation object represents a physical or remote location where employees work. It includes the location name, address, and type (such as office or remote).
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Legal Entities (HRIS)
The LegalEntity object represents a registered company or subsidiary that employs workers. It's typically used for payroll, compliance, and organizational structuring.
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Absences (HRIS)
The Absence object represents a period of time off taken by an employee. Use it to read, create, or delete absences such as vacation, sick leave, or other leave types.
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Absence Types (HRIS)
The AbsenceType object defines the categories of time off available in the organization, such as vacation or sick leave. It includes information on whether half-days and exact times are supported.
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Time Off Balances (HRIS)
The TimeOffBalance object tracks an employee's remaining and used time off for a specific absence type.
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Timesheets (HRIS)
The Timesheet object represents a time and attendance record for an employee, including clock-in/out times, breaks, payable hours, and approval status.
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Documents (HRIS)
Use the Documents endpoint to upload files to an employee's record, such as employment contracts, identification documents, or certifications.
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Employee Document Categories (HRIS)
The EmployeeDocumentCategory object defines the types of documents that can be uploaded to employee records, such as contracts or certifications.
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Performance Reviews (HRIS)
The PerformanceReview object represents an evaluation of an employee's performance within a review cycle. It includes ratings, comments, and the relationship between reviewee and reviewer.
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Performance Review Cycles (HRIS)
The PerformanceReviewCycle object represents a time-bound period during which performance reviews are conducted, such as an annual or quarterly review cycle.
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Skills (HRIS)
The Skill object represents a competency or capability that can be assigned to employees and job positions. Use it to create, update, or delete skills and manage employee skill assignments.
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Job positions (HRIS)
The JobPosition object represents a role within the organizational structure. It includes required skills, department, location, and reporting relationships.
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Discover our HRIS integrations

Discover our ATS integrations

Discover our LMS integrations

Discover our Assessment integrations

Build and maintain all HRIS integrations with one data model. Employees, groups, performance, and timesheets all follow the same format - no need to transform data or map fields differently for each system.
Build and maintain ATS integrations with one data model. Jobs, candidates, applications, and attachments all follow the same format - no need to transform data or map fields differently for each system.
Build and maintain LMS integrations with one data model. Users, courses, and progressions follow the same format - no need to transform data or map fields differently for each system.
Build and maintain Assessment integrations with one data model. Packages, orders, and results follow the same format - no need to transform data or map fields differently for each system.
HRIS
Workday
ATS
ATS (Assessment)
HRIS
LMS
SAP SuccessFactors
ATS
ATS (Assessment)
HRIS
LMS
SmartRecruiters
ATS
ATS (Assessment)
Factorial
ATS
HRIS
Oracle Recruiting Cloud
ATS
ATS (Assessment)
Lever
ATS
ATS (Assessment)
iCIMS
ATS
ATS (Assessment)
Cornerstone TalentLink
ATS
Recruitee
ATS
ATS (Assessment)
RecruiterFlow
ATS
Greenhouse
ATS
ATS (Assessment)
Teamtailor
ATS
ATS (Assessment)
Teamtailor Job Boards
ATS
Ashby
ATS
ATS (Assessment)
CEGID TalentSoft FrontOffice
ATS
concludis
ATS
Talention
ATS
P&I Loga
ATS
Onlyfy
ATS
Personio
ATS
HRIS
UKG Pro
ATS
ATS (Assessment)
HRIS
UKG Ready
ATS
HRIS
ADP Workforce Now
ATS
HRIS
Taleo
ATS
rexx systems
ATS
HRIS
AFAS Software
ATS
HRIS
BambooHR
ATS
HRIS
Bullhorn
ATS
ATS (Assessment)
Workable
ATS
Jobvite
ATS
ATS (Assessment)
Fountain
ATS
Softgarden
ATS
Pinpoint
ATS
Welcome to the Jungle
ATS
d.vinci
ATS
d.vinci admin
ATS
JOIN
ATS
Sage HR
ATS
HRIS
TRAFFIT
ATS
eRecruiter
ATS
Abacus Umantis
ATS
Jobylon
ATS
ATS (Assessment)
Taleez
ATS
HR WORKS
ATS
HRIS
OTYS
ATS
Zoho Recruit
ATS
Ceipal
ATS
Eploy
ATS
JobDiva
ATS
CareerPlug
ATS
Perview
ATS
Eightfold
ATS
ATS (Assessment)
Paylocity
ATS
HRIS
Paycor
ATS
HRIS
Avature
ATS
ATS (Assessment)
Apploi
ATS
Phenom
ATS
Paradox
ATS
Heyrecruit
ATS
RECRU
ATS
JazzHR
ATS
BITE
ATS
Homerun
ATS
Mysolution
ATS
Carerix
ATS
HR Office
ATS
Talent Clue
ATS
InRecruiting by Zucchetti
ATS
Ubeeo
ATS
Connexys By Bullhorn
ATS
HR4YOU
ATS
HRIS
Cornerstone OnDemand
ATS
HRIS
LMS
Zvoove Recruit
ATS
Odoo
ATS
Spark Hire Recruit
ATS
Compleet (PersoProfiler)
ATS
Compleet
ATS
Gem
ATS
Laura
ATS
Coveto (REST API)
ATS
Coveto (legacy SOAP API)
ATS
Crelate
ATS
Manatal
ATS
Avionté
ATS
MHM HR
ATS
Asymbl
ATS
Breezy HR
ATS
Flatchr
ATS
Dayforce
ATS
HRIS
Digital Recruiters
ATS
ApplicantStack
ATS
ReachMee
ATS
TalentAdore
ATS
GuideCom
ATS
Spott
ATS
Loxo
ATS
PayFit
HRIS
Employment Hero
HRIS
Fourth
HRIS
Kenjo
HRIS

Designed for enterprise data protection needs

Customer trust and data security are critical to us. Kombo provides comprehensive security controls and compliance frameworks specifically built for the regulatory requirements and data sensitivity of HR and TA tech integrations.
Reliability at scale
We power integrations for hundreds of companies, from seed-stage startups to Fortune 500 enterprises - all while maintaining 99.9% uptime. Our infrastructure is built to handle your growth without compromising performance.
Onboarding support
We work closely with your team via shared Slack or Teams channels. Your customers get detailed connection guides and transparent documentation on tool-specific limitations - so nothing catches them off guard.
Configurable data scoping
Collect only what you need. Define exactly which fields, information, or data points flow through each integration. Mark fields as required, optional, or disabled based on compliance  requirements and use case needs.

Compliant with security and privacy standards

Built-in security controls and industry-standard certifications protect your customers' data. Kombo complies with SOC 2 Type 2, HIPAA, GDPR, and is also ISO 27001 certified.