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 3 Complete, well-documented, and agent-ready

LinkedIn Talent Solutions APIThe LinkedIn Talent Solutions API provides access to recruiting and talent management capabilities. It enab...77.8 Greenhouse Recruiting WebhooksRecruiting Webhooks deliver event notifications for Greenhouse Recruiting activities such as candidate upda...77.3 Dynamics 365 Human Resources APIAPI for managing human resources operations including employee data, payroll integration, applicant trackin...67.7

Strong 4 Solid coverage with minor gaps

Eightfold Talent AcquisitionRecruiting product that surfaces candidates by skills, potential, and fit rather than resumes alone, with a...66.1 Zoho RecruitThe Zoho Recruit API provides REST endpoints with JSON format and OAuth2.0 authentication for integrating r...63.7 Affinda Search and Match APIResume search, job description search, and matching across parsed-document indexes. Score candidates agains...57.5 Recruitee Company (ATS) APIREST API for admin-side ATS operations including candidates, offers (job openings), placements, departments...56.0

Developing 7 Usable, with meaningful gaps to close

Factorial ATS APIApplicant Tracking surface — Candidates, Applications, Application Phases, Job Postings, Feedback, Evaluati...53.3 StackOne Unified ATS API (Legacy)Legacy (no longer in active development; existing functionality remains supported). StackOne Unified ATS AP...47.8 Welcome Kit GraphQL APIUndocumented first-party GraphQL API for the Welcome Kit / Welcome ATS platform, live at api.welcomekit.co/...47.7 Welcome to the Jungle Solutions APIREST API over Welcome to the Jungle Solutions recruiting and employer-branding data. Bearer-token (OAuth ac...47.7 Workday Studio Recruiting APIWeb service operations for job postings, candidate management, application tracking, and offer management.46.6 Oracle Fusion Cloud Applications Recruiting APIJob requisitions and candidate management42.7 Workday Recruiting SOAP Web Services APISOAP-based web service providing comprehensive access to Workday Recruiting business services data for inte...41.5

Thin 12 Limited public surface area

Anywhere Agent Recruiting APIAn endpoint for third-party CRM integration partners to deliver recruiting activities into Anywhere's iPros...39.0 Bullhorn REST APIREST API over the Bullhorn Staffing Object Model — CRUD, query, Lucene search, mass update, resume parsing,...36.9 Clean Harbors Careers Job Query APIUnauthenticated JSON API over Clean Harbors' open positions, served from the company's own careers host and...35.7 Oxford recruitment (CoreHR tenancy)Vacancies were once part of Oxford's own open-data programme; they are now a CoreHR application reached thr...34.8 Sage HR Recruitment APIThe Recruitment API from Sage HR — 5 operation(s) for recruitment.34.3 WayUp MCP ServerA remote Model Context Protocol (streamable HTTP) server operated by WayUp, a Yello company, at https://www...33.8 Wellfound Applications MCPRemote MCP server exposing a recruiter's inbound job applications to an agent, and letting it accept or rej...33.5 Wellfound Reach MCPRemote MCP server for Wellfound Reach, the AI sourcing product. Seven scopes across four resources - projec...33.5 Rippling Recruiting APISync candidates, applications, and offers between external ATS platforms and Rippling's recruiting and onbo...32.8 Comeet Recruiting APIThe Recruiting API is a partner-scoped REST API for building on top of Spark Hire Recruit (Comeet). It supp...30.3 Kenjo Recruiting APIPositions, candidates, and applications.26.6 Zoho Recruit REST API v2REST API for managing candidates, contacts, clients, job openings, interviews, attachments, notes, and cust...26.3

Emerging 14 Early or largely undocumented

UKG Pro HCM APIREST API for the UKG Pro HCM suite covering people, benefits, payroll, talent, recruiting, onboarding, and ...25.1 UKG Pro Recruiting APIRecruiting and applicant tracking25.1 Cornerstone Recruiting APIManage the full recruiting lifecycle including job requisitions, candidate profiles, applications, and offe...24.8 Graphic Packaging Career Site Job Query APIRead-only HTTP JSON API serving Graphic Packaging International's open job requisitions from careers.graphi...24.0 Air Force Reserve CommandAir Force Reserve Command (AFRC) provides information on reserve programs, career opportunities, unit locat...19.5 GreenhouseGreenhouse is an applicant tracking and recruiting platform with Harvest, Job Board, and Onboarding APIs fo...15.1 PersonioPersonio is a European all-in-one HR software for SMBs with a REST API for employees, attendance, absences,...15.1 WorkableWorkable is a recruiting platform with a REST API for jobs, candidates, activities, comments, and offers, p...15.1 Army National Guard Recruiting APIThe Army National Guard Recruiting API provides access to job listings, Military Occupational Specialties (...14.9 JobAdder REST APIRESTful API for managing recruitment workflows including jobs, candidates, placements, submissions, intervi...14.8 Gem Full-Funnel AnalyticsRecruiting analytics product covering top-of-funnel sourcing through hire, with team, pipeline, source, and...14.2 Gem REST API (v0)Gem's public REST API (v0) for customer and partner integrations against the Gem recruiting platform. Refer...14.2 Darwinbox APIREST API for Darwinbox HRMS covering employee management, attendance, recruitment, organizational managemen...12.4 Jobvite REST APIREST APIs for exchanging candidate, requisition, and application data between Jobvite and external systems ...11.6

Minimal 2 Almost no public developer surface

StatsBomb IQHosted analytics platform layered on top of StatsBomb Data for recruitment, tactical analysis, and performa...8.1 Jobvetta REST APIREST access to live, vetted India job openings. `GET /jobs` searches by keyword (`q`), Indian city or state...7.2

Companies reaching this through an API (17)

These companies publish an API, specification or operation carrying “Recruiting” 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.

Air Force Reserve Anywhere Real Estate Army National Guard Clean Harbors Eightfold AI Factorial Graphic Packaging HR & People Microsoft Dynamics 365 Oracle Fusion Cloud Applications Rippling StackOne StatsBomb (Hudl) UKG Pro University of Oxford Workday Studio Zoho

Score breakdown

Frequency

63.8

log-scaled weighted occurrences

Breadth

3.6

spread across providers

Quality lift

21.7

mean composite of providers using it

Cohesion

0.0

strength of nearest seed neighbor

Where this tag sits

278 providers carry this tag directly, and 299 counting the 3 narrower tags below — 21 more to reach.

Human Resources broader Hiring broader Applicant Tracking 66 providers Talent Acquisition 62 providers Interviewing 5 providers

Where this tag comes from

Provider tag278

Api tag42

Openapi tag4

Openapi op tag15

Markets provisional

Kin Score markets whose measured providers carry this tag. Share is the fraction of the market's measured providers that carry it — it describes the market, not this tag.

Market	Share of the market's providers
HCM and Payroll Marketplaces (ADP, Workday, UKG, Paylocity)	25%
HR and Payroll	24%

Cohort brief

Auto-generated

The 252 providers in the APIs.io catalog tagged Recruiting, scored on the Kin Score. Every figure below is computed from the catalog — nothing here is written.

Providers

252

of 278 in the catalog

Mean Kin Score

22.7

-1.4 vs catalog 24.1

Mean Agent Readiness

12.2

-1.9 vs catalog 14.1

Spread

0–77.8

median 16.1 · σ 18.5

How the 252 split by band

Exemplar 9Strong 12Developing 26Thin 32Emerging 94Minimal 79

Facet averages, against the whole catalog

Facet	This cohort	Catalog	Difference	Scored
Access Clarity	35.6	30	+5.6	252
Discoverability	58.2	59.1	-0.9	252
Contract Governance	7.8	9.7	-1.9	252
Operational Transparency	11.1	13.2	-2.1	252
Contract Quality	15.6	18.6	-3	252
Developer Ergonomics	19.7	24.5	-4.8	252

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)	19%	18%	+1
MCP server (first-party)	19%	16%	+3
Agent Skills	0%	0%	0
OAuth scopes	12%	13%	-1
Security	98%	99%	-1
Arazzo workflows	2%	1%	+1
Governance rules	28%	36%	-8

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 LinkedIn 77.8
2 Greenhouse 77.3
3 Drippay 76.5
4 GetMattered 74.7
5 Employment Hero 70.7
6 Remote 70.4
7 RocketReach 69.5
8 recruitmcp-com 68.3
9 Google Cloud Talent Solution 67.5
10 Ploid 64.7

Work with this as data

Every tag here is available over the APIs.io API and to AI agents over MCP.

MCP server

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https://apis.io/mcp

Tools for tags

7 MCP tools reach this

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.

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Recruiting

Providers using this tag (278)

APIs with this tag (42)