AbsenceSoft API and Developer Resources

REST API, webhooks, and file-based integrations for enterprise HR systems.

AbsenceSoft API Overview

AbsenceSoft provides an API that enables organizations to integrate their leave and accommodations management platform with any HRIS, payroll, or timekeeping system. The AbsenceSoft API developer portal includes complete API documentation, interactive testing, webhook configuration, and file integration references, giving development teams everything they need to build, test, and manage integrations independently. AbsenceSoft is an API-first platform, meaning the REST APIs available to customers are the same ones that power the AbsenceSoft application itself.

Common Integration Scenarios 

HRIS Synchronization

Keep employee information synchronized between your HRIS and AbsenceSoft automatically.

  • Auto-create employee records for new hires
  • Sync status changes, transfers, and assignments
  • Update contact information and addresses
  • Maintain organizational hierarchy 

Leave and Accommodations

Create leave cases automatically and retrieve data for reporting and analytics.

  • Auto-create cases from time-off requests 
  • Track approvals, denials, and status changes
  • Retrieve case histories for compliance
  • Monitor work restrictions and accommodations

REST API

AbsenceSoft’s REST API provides programmatic access to all core platform functionality, including employee data, leave cases, accommodations, communications, and workflows. API calls can be made in real time or on a scheduled basis depending on your architecture. 

Webhooks

Webhooks enable event-driven integration with AbsenceSoft. When a case is created, updated, or closed, your systems receive an instant HTTP notification without polling. AbsenceSoft webhooks include automatic retry, comprehensive logging, and HTTPS-only secure delivery.

File-Based Integration

For high-volume or scheduled data sync, AbsenceSoft supports structured inbound and outbound file feeds. Inbound files streamline employee data management. Outbound files extend absence data to downstream systems on a defined schedule.

Bidirectional Data Sync  

AbsenceSoft supports bidirectional integration patterns using a combination of REST APIs and webhooks. Development teams control the orchestration, choosing when and how data flows between AbsenceSoft and connected systems. 

Employee API

Manage employee records, contacts, and organizational structures across the full employee lifecycle, from onboarding through termination. Supports demographic updates, contact management, and organizational hierarchy maintenance.

Case API

Retrieve and manage leave and accommodations cases, work restrictions, communications, and workflows. Supports eligibility calculation, date modifications, accommodation requests, and time tracking.

Employer API

Manage employer configurations, holiday schedules, and organizational settings. Supports multi-tenant environments and organization-level policy configuration.

Communications API

Send and manage case-related communications programmatically. Supports notification triggers, template management, and delivery status tracking for all leave and accommodations communications.

The AbsenceSoft API is built on enterprise-grade security and reliability standards. 

Authentication and Access 

  • OAuth2 authentication supporting both password and client credentials flows
  • HTTPS-only communication across all endpoints
  • Industry-standard encryption for data in transit and at rest

Infrastructure and Compliance

  • SOC 2 certified infrastructure
  • High-volume integration support
  • Enterprise-grade reliability and uptime

Developer Experience

  • RESTful design with predictable URLs
  • Standard HTTP methods (GET, POST, PUT, DELETE)
  • JSON request and response format
  • Comprehensive error messages and response codes
  • Interactive "Try It" testing environment in the developer portal
  • Yes, AbsenceSoft has an API that clients can use to customize their integrations. AbsenceSoft offers a REST API that is publicly documented in OpenAPI 3.1 format, including guides and reference documentation for customers to orchestrate their integrations with. It supports REST API calls and webhook-driven integrations, allowing your developers to build custom connections to any system in your tech stack. The API includes an interactive “Try It” testing environment, field-level documentation, and use case guides. Unlike many competitors, AbsenceSoft does not limit you to a fixed set of partner systems; your team builds exactly what your business needs.  We provide the docs, tools, and test environments your developers need to customize your integration architecture. Orchestrate bidirectional integration with HRIS, payroll, and timekeeping systems to set up complete control over your platform.

  • Yes. The AbsenceSoft API documentation developer portal provides everything a development team needs to build and manage integrations independently, including interactive API testing, field-level documentation, webhook configuration references, and inbound and outbound file integration guides. The portal is available at absencesoft.stoplight.io.

  • Yes. AbsenceSoft provides the APIs and webhooks development teams need to orchestrate bidirectional data flows with HRIS, payroll, and timekeeping systems. Your team controls when and how data syncs between AbsenceSoft and connected systems.

  • AbsenceSoft’s open API is system-agnostic and can be used to integrate with any HRIS, HCM, payroll, or timekeeping platform. This includes popular HRIS systems like UKG, Workday, ADP, and more.

  • Yes, AbsenceSoft offers a few options for customers depending on their integration use case. For customers who are orchestrating their API integrations end-to-end, we offer Coordination and Support Hours. Many organizations use files for large-volume, scheduled data sync and APIs for real-time, transactional, or event-driven integrations. For this hybrid approach, customers are responsible for building to our API specifications, and AbsenceSoft will assist customers with building out their file feeds to our specifications which ultimately on the customer will execute onAbsenceSoft can work with customers for an additional cost to build custom outbound file feedsFor customers who are using file based integrations for employee data, historical data, and outbound feedsAbsenceSoft’s professional services team handles the implementation. When it comes to custom API development, this is generally the clients’ responsibilityAbsenceSoft has development partners that can be engaged as a separate paid professional services engagement.