ATS
Variants seen in the corpus:
ATSats
Providers using this tag (34)
Ranked by API Evangelist rating — Exemplar and Strong are expanded by default.
Exemplar 1 Complete, well-documented, and agent-ready
Developing 8 Usable, with meaningful gaps to close
Thin 9 Limited public surface area
Emerging 12 Early or largely undocumented
Minimal 1 Almost no public developer surface
APIs with this tag (29)
Ranked by the provider's API Evangelist rating — the Kin Score is scored per provider, not per API, so every API of a provider shares its band. How the rating works →
Exemplar 1 Complete, well-documented, and agent-ready
Strong 1 Solid coverage with minor gaps
Developing 8 Usable, with meaningful gaps to close
Factorial ATS APIApplicant Tracking surface — Candidates, Applications, Application Phases, Job Postings, Feedback, Evaluati...HeyMilo ATS APIThe ATS API from HeyMilo — 4 operation(s) for ats.Worklittle Business Platform APIThe Business/platform surface of the Worklittle API — 32 operations for apply and Apply-with-AI sessions, P...StackOne Unified ATS APIStackOne Unified ATS API standardizes recruitment workflows across applicant tracking system providers, pro...Indeed Disposition Sync APIA GraphQL API that enables ATS partners to send disposition data for Indeed Apply and non-Indeed Apply jobs...Indeed Employer Data APIA GraphQL API for creating and updating employer entities on Indeed and the Indeed PLUS platform.Indeed Employer Registration APIPart of the Candidate Sync APIs, this API allows ATS partners to register employers for Candidate Sync inte...Indeed Retrieve Candidates APIPart of the Candidate Sync APIs, this API enables ATS partners to get candidate and application information...
Thin 5 Limited public surface area
Bullhorn REST APIREST API over the Bullhorn Staffing Object Model — CRUD, query, Lucene search, mass update, resume parsing,...Rippling Recruiting APISync candidates, applications, and offers between external ATS platforms and Rippling's recruiting and onbo...Comeet Recruiting APIThe Recruiting API is a partner-scoped REST API for building on top of Spark Hire Recruit (Comeet). It supp...Cornerstone Recruiting APIManage the full recruiting lifecycle including job requisitions, candidate profiles, applications, and offe...Zoho Recruit REST API v2REST API for managing candidates, contacts, clients, job openings, interviews, attachments, notes, and cust...
Emerging 14 Early or largely undocumented
Recruitee Company (ATS) APIREST API for admin-side ATS operations including candidates, offers (job openings), placements, departments...Paradox Conversational ATSMobile-first, conversational applicant tracking system aimed at high-volume, frontline, and hourly hiring, ...Paradox for SAP SuccessFactorsProductised integration that automates manual hiring tasks inside SAP SuccessFactors recruiting workflows.Paradox for WorkdayProductised integration that brings Olivia conversational hiring and two-way SMS messaging directly into Wo...Gem ATSNext-generation, AI-native applicant tracking system that unifies pipeline management, application review, ...Glassdoor Job Distribution / ATS IntegrationsEnterprise channel for distributing job postings from applicant tracking systems and programmatic recruitme...AshbyAshby is an all-in-one talent platform with a REST API for candidates, applications, interviews, offers, jo...GreenhouseGreenhouse is an applicant tracking and recruiting platform with Harvest, Job Board, and Onboarding APIs fo...KomboKombo is a European unified HR API normalizing employees, employments, absences, candidates, jobs, and offe...LeverLever is a talent acquisition platform whose API covers candidates, opportunities, postings, requisitions, ...SmartRecruitersSmartRecruiters is an enterprise talent acquisition suite with a REST API for candidates, postings, applica...WorkableWorkable is a recruiting platform with a REST API for jobs, candidates, activities, comments, and offers, p...Jobvite REST APIREST APIs for exchanging candidate, requisition, and application data between Jobvite and external systems ...VidCruiter Partner Integration APIThe real, documented programmatic surface. VidCruiter provisions each institution a unique web-services API...
Companies reaching this through an API (9)
These companies publish an API, specification or operation carrying “ATS” but do not classify their business under it. Listed unranked and kept out of the count above, because one tagged operation is not a statement about what a company does.
Score breakdown
Frequency
50.0
log-scaled weighted occurrences
Breadth
0.9
spread across providers
Quality lift
38.2
mean composite of providers using it
Cohesion
15.4
strength of nearest seed neighbor
Related tags
Candidates 18 co-occurrences
Interviews 9 co-occurrences
Talent Acquisition 14 co-occurrences
Recruiting 28 co-occurrences
Applicant Tracking 11 co-occurrences
Hiring 19 co-occurrences
HRIS 11 co-occurrences
Time Off 8 co-occurrences
Where this tag comes from
Provider tag34
Api tag29
Openapi tag2
Openapi op tag22
Cohort brief
Auto-generatedThe 33 providers in the APIs.io catalog tagged ATS, scored on the Kin Score. Every figure below is computed from the catalog — nothing here is written.
Providers
33
all scored
Mean Kin Score
34.3
+10.4 vs catalog 23.9
Mean Agent Readiness
20
+8 vs catalog 12
Spread
10.8–67
median 35.1 · σ 16.7
How the 33 split by band
Exemplar 1Strong 3Developing 8Thin 9Emerging 11Minimal 1
Facet averages, against the whole catalog
| Facet | This cohort | Catalog | Difference | Scored |
|---|---|---|---|---|
| Access Clarity | 43.7 | 26.5 | +17.2 | 33 |
| Contract Quality | 34 | 19.8 | +14.2 | 33 |
| Operational Transparency | 25.5 | 14 | +11.5 | 33 |
| Developer Ergonomics | 29.7 | 23.4 | +6.3 | 33 |
| Discoverability | 66 | 61.2 | +4.8 | 33 |
| Contract Governance | 7.1 | 6.4 | +0.7 | 33 |
A facet is averaged over the members that carry it, not over the whole cohort — the “Scored” column is that count. Averaging an absent facet as zero would score our own coverage gaps as the providers’ posture.
What this cohort publishes
| Artifact | This cohort | Catalog | Difference |
|---|---|---|---|
| MCP server (any) | 12% | 10% | +2 |
| MCP server (first-party) | 24% | 13% | +11 |
| Agent Skills | 0% | 0% | 0 |
| OAuth scopes | 15% | 11% | +4 |
| Security | 100% | 97% | +3 |
| Arazzo workflows | 3% | 2% | +1 |
| Governance rules | 30% | 14% | +16 |
mcp_pct counts any mcp/ artifact including ones API Evangelist derived from the provider OpenAPI; mcp_first_party_pct counts only servers the provider publishes. Prefer the latter.
Top by Kin Score
- 1 Bindbee 67
- 2 Deel 65.7
- 3 Lever 65.6
- 4 Ashby 62.7
- 5 Greenhouse 52.9
- 6 Factorial 51.3
- 7 Worklittle 50.2
- 8 Kombo 44.3
- 9 Truto 44
- 10 Get On Board 43.8
Top by Agent Readiness
- 1 Worklittle 53.6
- 2 Deel 48.6
- 3 Bindbee 45.9
- 4 Ashby 42.4
- 5 Factorial 40.3
- 6 Greenhouse 33.5
- 7 Lever 32.9
- 8 Employ Inc 31.5
- 9 Ashby 30.9
- 10 Get On Board 28.6
All 34 members of this roster resolve to a scored provider in
the catalog.Generated from the catalog build of
15 September 2026, across 27661
providers, using the same computation served by the
APIs.io cohort API. Briefs are published for rosters of
5 or more scored providers; below that a distribution is not meaningful.
Work with this as data
Every tag here is available over the APIs.io API and to AI agents over MCP.