Products / API & Integrations

Prelim, inside the tools you already use.

Two-way sync with your ATS and HRIS, plus a production-ready REST API that returns structured candidate reports as JSON.

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How it works

Built to plug in, not replace.

Scores, verdicts, and reports sync back into Greenhouse, Lever, Workday, and SAP so recruiters never leave their workflow. Need something custom? The REST API returns structured JSON for any system.

  • Two-way ATS/HRIS sync
  • Production-ready REST API
  • Structured JSON candidate reports
  • Webhooks for real-time events
REST
API + webhooks

Integrate with any ATS or hiring workflow.

Capabilities

How it connects.

ATS integrations

Greenhouse, Lever, Workday, SAP SuccessFactors.

REST API

Structured JSON reports for any system.

Webhooks

Real-time events as candidates progress.

Live preview

One request, a full candidate report.

Every completed assessment fires a webhook and is available as structured JSON — drop it straight into your ATS, data warehouse, or a custom dashboard.

GET /v1/candidates/cnd_8f21b3/report
{
  "candidate_id": "cnd_8f21b3",
  "requisition": "REQ-4471",
  "track": "technical",
  "composite_score": 88.9,
  "percentile": 96,
  "verdict": "strong_hire",
  "sections": [
    { "name": "system_design", "score": 91 },
    { "name": "coding", "score": 88 },
    { "name": "communication", "score": 82 }
  ],
  "proctor_flags": [],
  "webhook_event": "assessment.completed"
}
FAQ

Questions teams ask us.

Which ATSs do you support?+

Greenhouse, Lever, Workday, and SAP SuccessFactors out of the box, with more via the API.

Is the API documented?+

Yes — a production-ready REST API with structured JSON reports and webhooks.

Can we build a custom flow?+

Absolutely. The API returns structured data you can drop into any workflow.

Connect Prelim to your stack.

Tell us your ATS and we'll show you the integration and the API.

Book a demoAll products