Amazon Seller Ecosystem (Selling Partner Appstore, Amazon Ads partners)

Where this market publishes its structure

• Selling Partner Appstore (sellercentral.amazon.com/selling-partner-appstore; page's own /apps/apis/search + /apps/apis/products JSON) machine-readable, 3,544 apps in search, 3,543 details (1 404); 140 listings linked by domain to in-market builders, 32 held by the market-fit gate, 42 held (shared hosts / Amazon's own)
• Amazon Ads Partner Directory (advertising.amazon.com/partners/directory; page's own /partner-directory-api/graphql GetPartners) machine-readable, 3,810 partners (1,143 self-service = tools); 73 linked by domain; 18 held out-of-market; 5 held (subsidiaries, shared host)
• Amazon Service Provider Network (sellercentral.amazon.com/gspn) not machine-readable: partly readable: server-rendered first page per service only (pagination is client-side; page= ignored), 58 names from 6 services, no websites; 12 services returned Amazon's 'Server Busy' bot challenge -- not passed. 0 register-name hits
• Amazon Appstore resource hub / SP-API developer registration not machine-readable: articles, not a register / private to Seller Central

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 191 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 191 · declares nothing we can read: no number