niche · -0.1 marketcapability domainresourceaction

.well Known

Score 18.1 / 100 0 providers +31 via APIs 31 APIs Search apis.io →
Variants seen in the corpus: .Well Known.well Known.well-knownWell KnownWell-KnownWell-knownwell-knownwellknown
A resource tag, not a market

No company describes its business as “.well Known”. It names something an API does — and 31 providers reach it through a specification or operation tag. The APIs below are the answer to this tag; the companies are not.

Providers using this tag (0)

No company classifies itself here — see the resource-tag note above, and the APIs below.

APIs with this tag (31)

Ranked by the provider's API Evangelist rating — the Kin Score is scored per provider, not per API, so every API of a provider shares its band. How the rating works →

Exemplar 2 Complete, well-documented, and agent-ready
Strong 4 Solid coverage with minor gaps
Developing 19 Usable, with meaningful gaps to close
Digits .well Known APIThe .well Known API from Digits — 2 operation(s) for .well known.53.5Datarails .well Known APIThe .well Known API from Datarails — 2 operation(s) for .well known.53.1Fullcast .well Known APIThe .well Known API from Fullcast — 2 operation(s) for .well known.50.5Charthop well-known APIThe well-known API from Charthop — 6 operation(s) for well-known.50.3University of Amsterdam .well Known APIThe .well Known API from University of Amsterdam — 1 operation(s) for .well known.50.1Openwork .well Known APIThe .well Known API from Openwork — 8 operation(s) for .well known.49.9Mireye .well Known APIThe .well Known API from Mireye — 1 operation(s) for .well known.49.6Weaviate .well Known APIThe .well Known API from Weaviate — 3 operation(s) for .well known.48.2Sun Life .well Known APIThe .well Known API from Sun Life — 1 operation(s) for .well known.47.3Hanko .well-known APIThe .well-known API from Hanko — 2 operation(s) for .well-known.47.2Basware .well-known APIThe .well-known API from Basware — 2 operation(s) for .well-known.46.3Ory wellknown APIWell-Known Endpoints45.4Scott Ai .well Known APIThe .well Known API from Scott Ai — 1 operation(s) for .well known.44.8Syncly .well Known APIThe .well Known API from Syncly — 3 operation(s) for .well known.44.1Opply .well-known APIThe .well-known API from Opply — 3 operation(s) for .well-known.43.9Reclaim.ai .well Known APIThe .well Known API from Reclaim.ai — 13 operation(s) for .well known.43.7Voyant.io Well Known APIGenerate llms.txt, context.txt, and agents.json for AI discoverability.43.7FusionAuth .well Known APIThe .well Known API from FusionAuth — 2 operation(s) for .well known.42.8Archera Well-Known APIOAuth 2.0 discovery endpoints (JWKS and Authorization Server Metadata)42.4
Thin 5 Limited public surface area
Emerging 1 Early or largely undocumented

Companies reaching this through an API (31)

These companies publish an API, specification or operation carrying “.well Known” but do not classify their business under it. Listed unranked and kept out of the count above, because one tagged operation is not a statement about what a company does.

54ch10 Archera Basware Charthop Clerk Datarails Descope Digits Fullcast FusionAuth GetVocal Hanko Logto Microsoft Azure Mireye Nexla Openwork Opply Ory Pieces Reclaim.ai Scott Ai Slash Sun Life Syncly THORChain Tvarka ATK API University of Amsterdam Voyant.io Weaviate Yieldmo

Score breakdown

Frequency
50.9
log-scaled weighted occurrences
Breadth
0.0
spread across providers
Quality lift
24.9
mean composite of providers using it
Cohesion
2.3
strength of nearest seed neighbor

Related tags

Resources 6 co-occurrences APIKeys 5 co-occurrences SAML 6 co-occurrences Organization 11 co-occurrences Authorization 5 co-occurrences Application 6 co-occurrences Task 5 co-occurrences Notification 6 co-occurrences

Where this tag comes from

Api tag31
Openapi tag31
Openapi op tag89

Work with this as data

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Tools for tags

7 MCP tools reach this
  • find_tagsBrowse and filter every tag in the catalog.
  • get_cohortThis tag as a scored cohort — every provider carrying it, with scores.
  • cohort_statsPRO — the distribution across this tag: mean, median, band split, adoption rates.
  • cohort_rankingsPRO — the leaderboard, on composite AND agent-readiness axes.
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
All 92 tools →

Call it yourself

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This tag
curl "https://apis.io/api/v1/tags/well-known"
All tags
curl "https://apis.io/api/v1/tags?limit=25"
As a scored cohort
curl "https://apis.io/api/v1/cohorts/tag/well-known"
The distribution (Pro)
curl "https://apis.io/api/v1/cohorts/tag/well-known/stats" \
  -H "X-API-Key: $APIS_IO_KEY"

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