ATS
Variants seen in the corpus:
ATSApplicant Tracking System
Providers using this tag (41)
Ranked by API Evangelist rating — Exemplar and Strong are expanded by default.
Strong 4 Solid coverage with minor gaps
Developing 8 Usable, with meaningful gaps to close
Thin 11 Limited public surface area
Emerging 17 Early or largely undocumented
Minimal 1 Almost no public developer surface
APIs with this tag (27)
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 →
Strong 1 Solid coverage with minor gaps
Developing 7 Usable, with meaningful gaps to close
HeyMilo ATS APIThe ATS API from HeyMilo — 4 operation(s) for ats.Factorial ATS APIApplicant Tracking surface — Candidates, Applications, Application Phases, Job Postings, Feedback, Evaluati...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 4 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...
Emerging 15 Early or largely undocumented
Zoho Recruit REST API v2REST API for managing candidates, contacts, clients, job openings, interviews, attachments, notes, and cust...Recruitee Company (ATS) APIREST API for admin-side ATS operations including candidates, offers (job openings), placements, departments...Gem ATSNext-generation, AI-native applicant tracking system that unifies pipeline management, application review, ...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...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...
Score breakdown
Frequency
49.2
log-scaled weighted occurrences
Breadth
1.1
spread across providers
Quality lift
38.9
mean composite of providers using it
Cohesion
14.2
strength of nearest seed neighbor
Related tags
Candidates 17 co-occurrences
Interviews 9 co-occurrences
Talent Acquisition 13 co-occurrences
Applicant Tracking 10 co-occurrences
Recruiting 26 co-occurrences
Hiring 18 co-occurrences
Time Off 9 co-occurrences
HRIS 10 co-occurrences
Where this tag comes from
Provider tag36
Api tag27
Openapi tag1
Openapi op tag4
Cohort brief
Auto-generatedThe 41 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
41
all scored
Mean Kin Score
31.8
+11.1 vs catalog 20.7
Mean Agent Readiness
16
+6.3 vs catalog 9.7
Spread
10.8–66.2
median 32.9 · σ 15.3
How the 41 split by band
Exemplar 0Strong 4Developing 8Thin 11Emerging 17Minimal 1
Facet averages, against the whole catalog
| Facet | This cohort | Catalog | Difference | Scored |
|---|---|---|---|---|
| Access Clarity | 39.2 | 22.3 | +16.9 | 41 |
| Contract Quality | 33.4 | 17.5 | +15.9 | 41 |
| Operational Transparency | 21.8 | 11.3 | +10.5 | 41 |
| Developer Ergonomics | 25.9 | 17.9 | +8 | 41 |
| Discoverability | 65.9 | 60.4 | +5.5 | 41 |
| Contract Governance | 7.8 | 6.4 | +1.4 | 41 |
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% | 16% | -4 |
| MCP server (first-party) | 5% | 7% | -2 |
| Agent Skills | 0% | 0% | 0 |
| OAuth scopes | 12% | 9% | +3 |
| Security | 98% | 88% | +10 |
| Arazzo workflows | 5% | 2% | +3 |
| Governance rules | 37% | 13% | +24 |
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 Ashby 66.2
- 2 Unified.to 60.4
- 3 Deel 55
- 4 Lever 54.4
- 5 HeyMilo 54
- 6 Factorial 52.8
- 7 Greenhouse 50.7
- 8 Get On Board 47.9
- 9 StackOne 46.7
- 10 Indeed 42.7
All 41 members of this roster resolve to a scored provider in
the catalog.Generated from the catalog build of
25 August 2026, across 26891
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
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Tools for tags
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find_tagsBrowse and filter every tag in the catalog.get_cohortThis tag as a scored cohort — every provider carrying it, with scores.cohort_statsPRO — the distribution across this tag: mean, median, band split, adoption rates.cohort_rankingsPRO — the leaderboard, on composite AND agent-readiness axes.apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.resolveTurn a domain, URL or GitHub org into the provider it belongs to.find_cohortsEvery scored population of providers in the catalog.
Call it yourself
curl for this page
This tag
curl "https://apis.io/api/v1/tags/ats"
All tags
curl "https://apis.io/api/v1/tags?limit=25"
As a scored cohort
curl "https://apis.io/api/v1/cohorts/tag/ats"
The distribution (Pro)
curl "https://apis.io/api/v1/cohorts/tag/ats/stats" \
-H "X-API-Key: $APIS_IO_KEY"Discovery needs no key. Ratings and market analysis are Pro.