HCM and Payroll Marketplaces (ADP, Workday, UKG, Paylocity)

Where this market publishes its structure

• ADP Marketplace (apps.adp.com, AppDirect listing JSON) machine-readable, 200; 725 listings; edges owned by sweep-hr-stores.py (hr-payroll), consumed; detail fetched for 250 only -- a full pass would link 31 more (27 in-market)
• Workday Marketplace (marketplace.workday.com) machine-readable, 301 -> /home, listing JSON 200; 896 listings; consumed from hr-stores; a full detail pass would link 64 more (36 in-market)
• UKG Marketplace (marketplace.ukg.com) machine-readable, 301 -> /home, listing JSON 200; 334 listings; consumed from hr-stores; full detail pass +2 (1 in-market)
• Paylocity Marketplace listing URLs (www.paylocity.com/sitemap.xml) machine-readable, 435 listing names; builder not stated (direction unknown); 96 linked after hand review
• Paylocity Marketplace listing pages not machine-readable: marketplace.paylocity.com does not resolve; www.paylocity.com listing pages answer a Cloudflare JavaScript challenge; not bypassed

Own = declares at least one integration itself; covered = visible only because an aggregator, standards body, regulator or partner contract names it; distribution-only = listed only on cloud marketplaces it sells through, a channel reported beside, never counted as its own declared integrations; undeclared = nothing we can read, so no number; declares_compatibility = providers with a `compatible` shape vote, report only (kin, 2026-10-13): never counted as own, never in depth or position.

Taxonomy how this market maps onto apis.io

Derived 2026-10-22 from the 85 providers in this market we could resolve in the catalog. The percentage is the share of those providers carrying each one; it describes the market, not the tag or industry. Tag groups have no page of their own yet, so they are listed unlinked.

share of resolved cohort carrying it; tags >=0.20 & >=3 members (max 12, junk dropped), tag_groups >=0.20 (cooccurrence, non-cross-cutting; max 8), industries >=0.20 (max 6), areas >=0.10 (max 6; areas are keyword-matched and sparse), capabilities L1 >=0.20 (max 8); derive-market-taxonomy.py

Leaders by position (provisional)

Provisional: grouped by position, depth compared within a position only. Distribution (cloud marketplaces) and iPaaS bridges are counted beside position, never inside it. Unknown-builder listings are left out of position shares and counted here.

undeclared 85 · declares nothing we can read: no number