The apis.io markets section was regenerated on 2026-10-20 and now covers 110 markets: 104 bedrock markets, measured by depth and structure, and 6 frontier markets, measured by movement between weekly snapshots. Taken together they hold 6,932 provider-to-market memberships. In 2,452 of them (35.4%), the provider declares nothing about its integrations that we can read, so the section records it as undeclared and gives it no number. That is the most important thing the section shows, and the page is right to show it rather than guess.
What a market page measures
Each market reads its providers by who they integrate with and how deep those integrations go. It also reads the places where the market publishes its own structure: partners’ contracts, connector catalogs, regulators’ registers and standards bodies’ member lists. Every membership falls into one of four classes:
| Declaration | Memberships | Meaning |
|---|---|---|
| Own | 2,508 | the provider names at least one integration itself |
| Covered | 1,406 | visible only because an aggregator, regulator, standard or partner contract names it |
| Distribution only | 566 | listed only on cloud marketplaces it sells through |
| Undeclared | 2,452 | nothing readable, so no number |
Leaders are grouped by position (gravity, core, standard, coverage, regulated, long-tail and so on), and depth is compared only within a position. The whole layer is labelled provisional and unweighted. It is not part of the Kin Score composite or of Agent Readiness.
Two ends of the range
Payments is the best-declared market. Of its 25 providers, 72% declare their own integrations and none are undeclared. Stripe holds the gravity position at depth 69.3, with 926 integrations, 802 of them inbound. That is what a market looks like when other companies invest in building on its leader.
Drones and airspace is at the other end. It has 139 providers and 81.3% of them are undeclared: only 3 declare their own integrations, and 21 are covered. That is not for lack of effort on our side. The market lists nine structural sources, from the FAA’s LAANC supplier list to InterUSS and GUTMA membership. In this industry, the regulator’s register says more about who works with whom than the companies do. Fourteen of the 110 markets have no undeclared members at all.
What is honest to say, and what is not live yet
Across all markets, 391 structural sources were readable and 368 were not. Some pages are client-rendered, some redirect, some time out, and the source notes say which. The coverage file behind the taxonomy keeps 74 industries in some market, leaves 5 partial and 2 uncovered.
The live index currently links 98 markets. Twelve were regenerated locally but are not yet deployed. Space-satellite, agent-skills (the largest cohort, at 556), stablecoins-tokenization, xr-graphics, quantum-computing and seven others return 404 on apis.io today. Until the next deploy, the section has fewer markets live than the build produced.
Takeaway
The markets section is useful because it refuses to make up a number for the 35% it cannot read. Three things would move that share. Providers can publish their integration lists in a machine-readable form. We can work through the 368 unreadable sources. And the twelve built markets need to be deployed. Integration workflows and their phrasing on these pages are generated by API Evangelist and are labelled that way.
Browse every market at apis.io/markets/.