APIs.guru OpenAPI Directory (API definition directory)

Where this market publishes its structure

• APIs.guru list (api.apis.guru/v2/list.json) machine-readable, 2,529 API keys, 676 x-providerName domains; 220 directory providers linked to 216 repos (118 with publisher-hosted x-origin; 156 also carry their own openapi/); 82 held, 5 out of market, 7 name-check candidates, 362 not in catalog
• APIs.guru providers (api.apis.guru/v2/providers.json) machine-readable, 677 names; cross-check: api.ebay.com is in providers.json but in no list.json entry (eBay's APIs list under ebay.com / apiz.ebay.com)
• APIs.guru robots.txt machine-readable, Disallow empty: all crawling allowed
• Per-version spec bodies (api.apis.guru/v2/specs/...) not machine-readable: not read: list.json carries the signals; spec bodies would be a harvest, which this sweep does not do

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 2026-10-23 from the 216 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 216 · declares nothing we can read: no number