Markets · bedrock market · provisional

IIIF and Cultural Heritage (GLAM image interoperability, Linked Art)

Register + standard market (iiif consortium, iiif implementation listings, linked art). The Kin Score Market layer reads each provider in its market: who it integrates with, how deep those integrations go, and where the market publishes its own structure. Methodology.

53providers measured

1 (1.9%)declare their own

34 (64.2%)covered by others only

1 (1.9%)distribution only (sell through, not integrations)

17 (32.1%)undeclared

2declare compatibility (report only, not weighted)

0in-market workflows shown

Provisional. Provisional and unweighted: the Market layer is not part of the composite or agent readiness. Leader lists are read within a position, never as one ranking. A provider that declares nothing we can read is shown as undeclared, with no number: we never infer integrations.

Where this market publishes its structure

IIIF Consortium members (iiif.io/community/consortium/members/) machine-readable, 73 members (champion 3, full 44, associate 26), website per member; 27 linked; 7 held; 6 out-of-market
awesome-iiif readme.md + implementations.md (github.com/IIIF/awesome-iiif, GitHub contents API) machine-readable, 162 entries; 74 on shared hosts; 3 linked (Yale Center for British Art, CONTENTdm -> OCLC, UIUC Library); most DAM / CMS vendors are not in the catalog; participation only (no conformance test, certified_products refused)
Linked Art community institutions (linked.art/community/) machine-readable, 25 institutions, names only; 8 linked (Wikidata P856 / domain); 5 with no catalog identity
Europeana data providers / aggregators (pro.europeana.eu) not machine-readable: 403 + Cloudflare 'Just a moment...' bot challenge; not bypassed; Europeana APIs need a wskey
Art UK partner collections (artuk.org) not machine-readable: 202 empty body then 403 from the AWS load balancer (WAF bot challenge); not bypassed
IIIF certified / conformant products not machine-readable: no register published; IIIF validators are self-run

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 2026-10-21 from the 53 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.

Tags	Education 55%, Higher Education 55%, University 55%, Identity Federation 53%, Library 53%, Research Data 43%, OAI-PMH 34%, Open Data 32%, Research Repository 32%, Museums 28%, Research 26%, United States 26%
Tag groups	Education 68%, Open Data 34%, Cultural Heritage 34%, United States 30%, Collectibles 23%
Industries	Education & EdTech 64%

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.

builds-on 1 · publishes apps on other platforms' stores

Provider	Depth	Integrations	In / out	Unknown builder	Distribution	iPaaS bridge	Mix
Cuseum	19.7 thin	2	0 / 2	0	0	1	ipaas-bridge 50%, builds-on-platform 50%

regulated 1 · named in a regulator's register or partners' contracts

Provider	Depth	Integrations	In / out	Unknown builder	Distribution	iPaaS bridge	Mix
Masterworks	19.2 thin	1	0 / 1	0	0	0	contract 100%

standard 33 · listed by a voluntary standard's own directory

Provider	Depth	Integrations	In / out	Distribution	Mix
Pennsylvania State University	58.1	3	0 / 3	0	standard 100%
Harvard University	51.7	3	0 / 3	0	standard 100%
OCLC	51.7	8	0 / 8	1	contract 12%, standard 75%, distribution 12%
Princeton University	51.7	3	0 / 3	0	standard 100%
Smithsonian Institution	51.7	3	0 / 3	0	standard 100%
Yale University	51.7	4	0 / 4	0	standard 100%
Cornell University	34.5 thin	2	0 / 2	0	standard 100%
ETH Zurich – Swiss Federal Institute of Technology	34.5 thin	2	0 / 2	0	standard 100%
Ghent University	34.5 thin	2	0 / 2	0	standard 100%
National Gallery of Art	34.5 thin	2	0 / 2	0	standard 100%
Ohio State University	34.5 thin	2	0 / 2	0	standard 100%
Rijksmuseum	34.5 thin	2	0 / 2	0	standard 100%
Stanford University	34.5 thin	2	0 / 2	0	standard 100%
Texas A&M University	34.5 thin	2	0 / 2	0	standard 100%
University of British Columbia	34.5 thin	2	0 / 2	0	standard 100%
University of California, Los Angeles	34.5 thin	2	0 / 2	0	standard 100%
University of Amsterdam	34.5 thin	2	0 / 2	0	standard 100%
University of Basel	34.5 thin	2	0 / 2	0	standard 100%
University of Bern	34.5 thin	2	0 / 2	0	standard 100%
University of Cambridge	34.5 thin	2	0 / 2	0	standard 100%
University of Chicago	34.5 thin	2	0 / 2	0	standard 100%
University of Göttingen	34.5 thin	2	0 / 2	0	standard 100%
University of Illinois Urbana-Champaign	34.5 thin	2	0 / 2	0	standard 100%
University of Leeds	34.5 thin	2	0 / 2	0	standard 100%
University of Michigan-Ann Arbor	34.5 thin	2	0 / 2	0	standard 100%
University of Minnesota	34.5 thin	2	0 / 2	0	standard 100%
University of Oxford	34.5 thin	2	0 / 2	0	standard 100%
University of Toronto	34.5 thin	2	0 / 2	0	standard 100%
University of Vienna	34.5 thin	2	0 / 2	0	standard 100%
Vanderbilt University	34.5 thin	2	0 / 2	0	standard 100%
Leiden University	17.2 thin	1	0 / 1	0	standard 100%
Level Frames	17.2 thin	1	0 / 1	0	standard 100%
London School of Economics and Political Science	17.2 thin	1	0 / 1	0	standard 100%

distribution 1 · only sells through cloud marketplaces

Provider	Depth	Integrations	In / out	Unknown builder	Distribution	iPaaS bridge	Mix
Meow Wolf	19.2 thin	2	0 / 2	0	2	0	distribution 100%

undeclared 17 · declares nothing we can read: no number

Provider	Depth	Integrations	In / out	Unknown builder	Distribution	iPaaS bridge
Artsy	undeclared	-	-	-	-	-
Art Institute of Chicago	undeclared	-	-	-	-	-
Avant Arte	undeclared	-	-	-	-	-
Chronicling America	undeclared	-	-	-	-	-
Convelio	undeclared	-	-	-	-	-
CuratorSearch	undeclared	-	-	-	-	-
Digital Public Library of America	undeclared	-	-	-	-	-
École des Ponts ParisTech	undeclared	-	-	-	-	-
Europeana	undeclared	-	-	-	-	-
Everything But The House	undeclared	-	-	-	-	-
Invaluable	undeclared	-	-	-	-	-
Library of Congress	undeclared	-	-	-	-	-
OpenTripMap	undeclared	-	-	-	-	-
Openverse	undeclared	-	-	-	-	-
Science Museum Group	undeclared	-	-	-	-	-
Wib&Wob (symbients)	undeclared	-	-	-	-	-
WRONG BEAUTY 000 / THE SWARM	undeclared	-	-	-	-	-

Generated 2026-10-21 from API Evangelist's own files; nothing on this page is a model's judgement. Provisional and unweighted; not part of the Kin Score composite or agent readiness. Read the Market layer methodology. Disagree with an edge? Every edge cites its evidence and can be corrected through the normal correction path.