--- title: "JazzHR ATS API Directory" description: "JazzHR ATS API integration guide covering endpoints, use cases, highlights, and FAQs. Learn how to automate recruiting workflows and sync hiring data efficiently." source_url: "https://www.getknit.dev/blog/jazzhr-ats-api-directory" page_type: "blog" --- _This is an educational blog post from Knit's blog: “JazzHR ATS API Directory”._ # JazzHR ATS API Directory [JazzHR ATS](https://www.getknit.dev/integration/jazzhr-ats) is a purpose-built applicant tracking system designed to simplify and automate hiring for small and mid-sized organizations. It centralizes job posting, applicant management, interview workflows, and compliance tracking into a single system, reducing manual effort and improving hiring velocity. Beyond its core ATS capabilities, JazzHR provides a well-structured API that allows teams to integrate recruitment data with external HR systems, analytics platforms, background verification tools, and internal workflows. The JazzHR ATS API enables controlled access to [hiring data](https://www.getknit.dev/blog/fetch-job-application-data-from-jazzhr-ats-api), allowing organizations to extend JazzHR’s capabilities without disrupting existing processes. For teams aiming to operationalize hiring data across systems, the API becomes a critical enabler rather than a nice-to-have. ## Key Highlights of JazzHR ATS API 1. **Centralized access to hiring data** Retrieve applicants, jobs, users, activities, and hiring outcomes from a single API surface. 2. **Automates high-volume recruiting workflows** Programmatically create applicants, map them to jobs, upload files, add notes, and track hiring actions. 3. **Reliable real-time visibility** Activities, tasks, hires, and updates can be fetched continuously to keep external systems in sync. 4. **Flexible integration model** Designed for custom integrations with HRIS, onboarding tools, analytics systems, and job boards. 5. **Secure access control** API key–based authentication ensures controlled and auditable access to recruitment data. 6. **Scales with hiring growth** Pagination, filtering, and structured endpoints support growing applicant and job volumes. 7. **Webhook and event-driven readiness** Supports near–real-time updates through activity tracking and webhook-style workflows. ### Activities * **GET** `https://api.resumatorapi.com/v1/activities` * **GET** `https://api.resumatorapi.com/v1/activities/{activityID}` ### Applicants * **POST** `https://api.resumatorapi.com/v1/applicants` * **GET** `https://api.resumatorapi.com/v1/applicants/{applicantID}` ### Applicants2Jobs * **POST** `https://api.resumatorapi.com/v1/applicants2jobs` * **GET** `https://api.resumatorapi.com/v1/applicants2jobs/{applicants2jobsID}` ### Categories * **GET** `https://api.resumatorapi.com/v1/categories` * **GET** `https://api.resumatorapi.com/v1/categories/{categoriesID}` ### Categories2Applicants * **GET** `https://api.resumatorapi.com/v1/categories2applicants` * **GET** `https://api.resumatorapi.com/v1/categories2applicants/{categories2applicantsID}` ### Contacts * **GET** `https://api.resumatorapi.com/v1/contacts` * **GET** `https://api.resumatorapi.com/v1/contacts/{contactsID}` ### Files * **POST** `https://api.resumatorapi.com/v1/files` * **GET** `https://api.resumatorapi.com/v1/files/{filesID}` ### Hires * **GET** `https://api.resumatorapi.com/v1/hires` ### Jobs * **GET** `https://api.resumatorapi.com/v1/jobs` * **GET** `https://api.resumatorapi.com/v1/jobs/{jobID}` ### Notes * **POST** `https://api.resumatorapi.com/v1/notes` ### Questionnaire Answers * **POST** `https://api.resumatorapi.com/v1/questionnaire_answers` * **GET** `https://api.resumatorapi.com/v1/questionnaire_answers/pages/{page_id}` ### Questionnaire Questions * **GET** `https://api.resumatorapi.com/v1/questionnaire_questions/questionnaire_id/questionnaire_20240715163409_5EYUGO8YULDRJOAE` ### Tasks * **GET** `https://api.resumatorapi.com/v1/tasks` * **GET** `https://api.resumatorapi.com/v1/tasks/{taskID}` ### Users * **GET** `https://api.resumatorapi.com/v1/users` * **GET** `https://api.resumatorapi.com/v1/users/{userID}` ## FAQs **1\. What are common use cases for the JazzHR ATS API?** Automating applicant ingestion, syncing hiring data to HRIS or payroll systems, building hiring dashboards, and integrating background checks or assessments. **2\. How is authentication handled in the JazzHR API?** All endpoints require an API key, passed either as a query parameter or header depending on the endpoint. **3\. Can applicants be created and assigned to jobs via API?** Yes. Applicants can be created using the Applicants endpoint and mapped to jobs using the Applicants2Jobs endpoint. **4\. Does the API support pagination for large datasets?** Yes. Most list endpoints support pagination with configurable page sizes, typically up to 100 records per page. **5\. Can files like resumes and documents be uploaded programmatically?** Yes. The Files API allows uploading Base64-encoded files and linking them to applicants. **6\. How can hiring activity be tracked in real time?** The Activities and Tasks endpoints provide detailed logs of user actions, applicant movements, and workflow updates. **7\. Is the JazzHR API suitable for enterprise-scale integrations?** It is well-suited for SMB and mid-market scale. For higher volumes, careful rate management and pagination handling are recommended. ## Get Started with JazzHR ATS API Integration While the JazzHR ATS API is powerful, managing authentication, versioning, retries, and long-term maintenance adds operational overhead. Platforms like [Knit API](https://www.getknit.dev/integration/jazzhr-ats) abstract these complexities by providing a single, standardized integration layer. With one integration to Knit, teams can access JazzHR data without managing API-specific logic, enabling faster deployment and lower maintenance cost. The bottom line: if JazzHR is your system of record for hiring, its API is the backbone for scaling recruitment operations across tools, teams, and workflows. ## Related pages - [How Knit works](https://md.getknit.dev/how-knit-works) - [Unified API product](https://md.getknit.dev/products/unified-api)