Which ATS APIs are actually public? The 2026 job-data reference
Almost every ATS has an API - the question is whether you can read a company's public postings without being its customer. Greenhouse, Lever, Ashby and SmartRecruiters are open; Workday, iCIMS, BambooHR and most others are gated. Where all 30+ land, and what it means for aggregating job data.
Dvir Atias
Founder, JobsPipe
“Does this ATS have an API?” is the wrong question. Almost every ATS has one. The question that decides whether you can build on it is: can you read a company’s public job postings without being that company’s customer? For most ATSs the answer is no. Here is where each one actually lands in 2026, and what it means for anyone aggregating job data.
Tier 1 - genuinely public (no key, per company)
These expose an unauthenticated endpoint that returns one company’s published postings as JSON. You still need each company’s slug, and there is no directory or cross-company search, but the data is open:
- Greenhouse - the Job Board API (board token per company)
- Lever -
api.lever.co/v0/postings/<company> - Ashby - the public Job Board endpoint per organization
- SmartRecruiters - the public Posting API per company
- Breezy and Polymer - public JSON job feeds per account
Tier 2 - public data, but a key per account
The postings are readable, but only with the individual customer’s credentials - there is no aggregator-tier access:
- Workable - the Job Board API, gated per account
- Teamtailor - a clean JSON:API, one key per tenant
Tier 3 - gated, no public job feed
The API you find is HRIS or customer-scoped recruiting, not public jobs. To read postings you fall back to parsing each employer’s career site:
- Workday, iCIMS, SuccessFactors, Taleo - enterprise ATSs, career site only
- BambooHR and Personio - HRIS APIs; jobs live on a careers widget
- Jobvite - a feed most customers never enable
The pattern, and the shortcut
Public or gated, the work is the same shape at scale: discover every tenant, handle each surface’s quirks, dedupe, and normalize. That layer is what JobsPipe sells - every source above, public and gated, through one jobs API in a single schema. Full side-by-side in the best jobs APIs of 2026.
Every ATS, public or gated - one jobs API, one schema, free tier included.
Get a free API keyFrequently asked questions
Which ATS APIs are public?
Greenhouse, Lever, Ashby, SmartRecruiters, Breezy, and Polymer expose a company's published postings without a key, one company per call. Workable and Teamtailor are readable but require the individual account's credentials. Workday, iCIMS, SuccessFactors, BambooHR, Personio, Taleo, and Jobvite are gated - their API is HRIS or customer-scoped, so public jobs only live on the careers site.
Do I need to be a customer to use an ATS API?
For most enterprise ATSs, yes - the API is provisioned for the employer's own integrations. Only a handful (Greenhouse, Lever, Ashby, SmartRecruiters) expose public job endpoints without customer credentials.
How do I get job postings from every ATS at once?
No single ATS offers cross-company access. Aggregators like JobsPipe index the public postings across 30+ ATSs and normalize them into one schema, so you query every source through one endpoint instead of integrating each ATS separately.