ATS API: one integration for 30+ applicant tracking systems

“ATS API” is one of the highest-intent developer search terms in HR tech ($29 CPC), and it’s asked by two completely different audiences: builders who want to read jobs out of every ATS (job boards, sourcing tools, AI recruiters) and builders who want to write applications into every ATS (apply-on-behalf-of-candidate workflows).

This post is about the first kind. If you want to read jobs from Workday, Greenhouse, Lever, Ashby, BambooHR, SmartRecruiters, iCIMS, and 20+ more without writing 27 separate integrations, here’s how it works in 2026.

The 30-ATS integration problem

Each ATS has its own auth model, its own JSON shape, its own field naming, and its own freshness guarantees. Pulling jobs from all of them is genuinely 30 separate integrations:

• Workday — JSON feed per tenant, Akamai bot management, 10k result cap per query.
• Greenhouse — free public REST API per board, but you need the board_token.
• Lever — public postings endpoint at api.lever.co/v0/postings/{company}; no auth, simple JSON.
• Ashby — public jobs JSON at jobs.ashbyhq.com/{company}.
• BambooHR, SmartRecruiters, iCIMS, Workable — each has its own endpoint shape, its own auth requirements (some require partner keys), and its own field IDs.

JobsPipe’s unified shape

Every job from every source returns the same fields:

{
  "id": "jp_8KQv2nT0pX",
  "title": "Senior Backend Engineer",
  "company": "Northwind Labs",
  "source": "greenhouse",
  "source_refs": [
    { "source": "greenhouse", "id": "gh_8KQv2nT0pX" },
    { "source": "indeed", "id": "in_3741290021" }
  ],
  "location": {
    "city": "Berlin", "country": "DE",
    "lat": 52.52, "lng": 13.40, "remote": true
  },
  "compensation": {
    "min": 95000, "max": 135000, "currency": "EUR"
  },
  "posted_at": "2026-05-16T08:14:00Z",
  "apply_url": "https://boards.greenhouse.io/...",
  "description_md": "..."
}

What you save

A team building this from scratch typically commits 2 engineers for ~6 months, then ongoing maintenance forever as ATSs change. Most JobsPipe customers replace 3–8 in-house scrapers with one integration in an afternoon.