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Integrate every ATS system with one API
Ship new integrations in days, not months. Read and write data to all major applicant tracking systems with our Unified API.
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Why leading Talent Acquisition Software players choose Kombo
One standardized model
Read and write data across any ATS using the same set of endpoints. Whether it's Workday, SAP SuccessFactors, or Lever, 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 ATS. Reading jobs, candidates, and applications and writing back new applications, stage changes, and attachments works the same whether you're connected to Greenhouse, Ashby, Oracle RC, or SmartRecruiters - same endpoints, same fields, same format.
Same granularity as a direct integration
Our unified API is built to cover all 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
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How CV-Library increased candidate applications by 300% with Kombo
Continue Reading
Kombo’s team is proactive, responsive, and easy to work with. As an example, we raised a question this morning and received a response within 10 minutes.
Jane Akoshile
Product Manager, CV-Library
Data model library
Users (ATS)
The User object represents a recruiter, hiring manager, or other team member in the ATS who can interact with jobs, candidates, and applications. Each user includes a first name, last name, email, and status.
Jobs (ATS)
The Job object represents an open position in the ATS that candidates can apply to. Each job includes a name, description, employment type, status, visibility, location, department, salary information, and associated screening questions, stages, and hiring team members.
Candidates (ATS)
The Candidate object represents an individual in the ATS who has applied or been sourced for one or more jobs. Use the Candidates endpoints to read candidate profiles and create new candidates. Each candidate includes contact information, source, location, social media links, associated applications, and tags.
Applications (ATS)
The Application object represents a candidate's submission for a specific job, linking a candidate to a position in the hiring pipeline. Use the Applications endpoints to read applications, create new applications for jobs, move applications between stages, and reject applications. Each application includes the current stage, outcome, screening question answers, and associated interviews and offers.
Application Stages (ATS)
The Application Stage object represents a step in the hiring pipeline that applications progress through. Each stage includes a name and index indicating its position in the workflow.
Screening questions (ATS)
Screening Questions define the job-specific questions that candidates answer when applying. Read screening questions from jobs and submit candidate answers when creating applications. Supported question types include text, number, boolean, single-select, multi-select, date, and file, with support for conditional questions based on previous answers.
Tags (ATS)
The Tag object represents a label that can be assigned to candidates for categorization and filtering. Use the Tags endpoints to read available tags, add tags to candidates, and remove tags from candidates.
Interviews (ATS)
Use the Interviews endpoints to create and update scheduled interviews for applications. Each interview includes a title, start time, end time, location, interviewer user IDs, and organizer information.
Offers (ATS)
The Offer object represents a job offer extended to a candidate for an application. Each offer includes a status (draft, approved, sent, accepted, declined, or abandoned), employment start date, and associated application with candidate and job details.
Rejection reasons (ATS)
The Rejection Reason object defines the available reasons for declining a candidate's application. Read rejection reasons to populate selection options when rejecting applications through the reject application endpoint.
Attachments (ATS)
Use the Attachments endpoints to upload and retrieve files associated with applications or candidates, such as resumes, cover letters, and other documents. Supported attachment types include CV, cover letter, and other file categories.
Result links (ATS)
Use the Result Links endpoints to add external links to applications or candidates, such as assessment results or background check reports. Each result link includes a label, URL, and optional detail attributes like scores or completion times.
Notes (ATS)
Use the Notes endpoint to add text annotations to applications. Notes support plain text content and enable recruiters to record additional context or communications about a candidate's application.
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.
ATS
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.
