US Federal API Programs (api.data.gov, Login.gov, GSA MAS, FedRAMP)

Where this market publishes its structure

• api.data.gov agency users (github.com/GSA/api.data.gov content/users.csv @ae4c262690) + agency list on api.data.gov machine-readable, 31 websites (21 agencies listed); 24 linked; Commerce and FAC not in catalog; FOIA.gov, LIVEWIRE failed name check
• Login.gov partners from github.com/GSA-TTS/identity-site (partner logo grid, impact stories, agency help pages) machine-readable, 17 names; 13 linked via Wikidata P856; VA (va.gov -> national-cemetery-administration name check), RRB, OPM not linked; U.S. Army held
• FedRAMP Marketplace data (18F/fedramp-data data.json @b6c758d5c7) machine-readable, 425 packages / 342 CSPs; authorized SaaS not in gov-cloud: 1 linked (Treasury); 10 held (9 subsidiaries / public-sector arms, Google shared host)
• GSA eLibrary MAS SINs 54151S, 518210C, 511210, 54151HACS + contractorInfo pages machine-readable, 3,904 contractors; 314 name candidates fetched; 14 linked in market, 32 out-of-market, 29 subsidiaries / resellers / shared hosts held
• api.data.gov/docs/ (API list) not machine-readable: 404 (2026-10-21)
• partners.login.gov (live partner list) not machine-readable: Cloudflare managed challenge; not bypassed
• marketplace.fedramp.gov UI not machine-readable: SvelteKit client shell; read through the 18F data file

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 251 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 251 · declares nothing we can read: no number