established · 0.1 market domain

Headless CMS

Score 24.6 / 100 34 providers +4 via APIs 16 APIs Search apis.io →

Providers using this tag (34)

Ranked by API Evangelist rating — Exemplar and Strong are expanded by default.

Exemplar 3 Complete, well-documented, and agent-ready
Strong 4 Solid coverage with minor gaps
Developing 9 Usable, with meaningful gaps to close
Thin 9 Limited public surface area
Emerging 8 Early or largely undocumented
Minimal 1 Almost no public developer surface

APIs with this tag (15)

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 2 Solid coverage with minor gaps
Developing 3 Usable, with meaningful gaps to close
Thin 4 Limited public surface area
Emerging 4 Early or largely undocumented

Companies reaching this through an API (4)

These companies publish an API, specification or operation carrying “Headless CMS” 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.

Contentstack Progress Software Sitecore University of Helsinki

Score breakdown

Frequency
46.2
log-scaled weighted occurrences
Breadth
0.9
spread across providers
Quality lift
45.1
mean composite of providers using it
Cohesion
25.6
strength of nearest seed neighbor

Related tags

Content Management 33 co-occurrences Content Delivery 11 co-occurrences CMS 14 co-occurrences GraphQL 21 co-occurrences Personalization 5 co-occurrences Pages 6 co-occurrences Assets 7 co-occurrences REST API 5 co-occurrences

Where this tag comes from

Provider tag34
Api tag16

Cohort brief

Auto-generated

The 34 providers in the APIs.io catalog tagged Headless CMS, scored on the Kin Score. Every figure below is computed from the catalog — nothing here is written.

Providers
34
all scored
Mean Kin Score
39.8
+15.9 vs catalog 23.9
Mean Agent Readiness
25.8
+13.8 vs catalog 12
Spread
5–70.4
median 37.2 · σ 16.6
How the 34 split by band
Exemplar 3Strong 4Developing 9Thin 9Emerging 8Minimal 1
Facet averages, against the whole catalog
FacetThis cohortCatalogDifferenceScored
Contract Quality 48.7 19.8 +28.9 34
Operational Transparency 30.6 14 +16.6 34
Access Clarity 39.9 26.5 +13.4 34
Developer Ergonomics 36.7 23.4 +13.3 34
Discoverability 67.8 61.2 +6.6 34
Contract Governance 9.9 6.4 +3.5 34

A facet is averaged over the members that carry it, not over the whole cohort — the “Scored” column is that count. Averaging an absent facet as zero would score our own coverage gaps as the providers’ posture.

What this cohort publishes
ArtifactThis cohortCatalogDifference
MCP server (any) 21% 10% +11
MCP server (first-party) 29% 13% +16
Agent Skills 0% 0% 0
OAuth scopes 12% 11% +1
Security 100% 97% +3
Arazzo workflows 6% 2% +4
Governance rules 32% 14% +18

mcp_pct counts any mcp/ artifact including ones API Evangelist derived from the provider OpenAPI; mcp_first_party_pct counts only servers the provider publishes. Prefer the latter.

Top by Kin Score
  1. 1 dotCMS 70.4
  2. 2 Prismic 68.9
  3. 3 Bloomreach 67.2
  4. 4 Contensis 65.6
  5. 5 Acoustic 65.5
  6. 6 Yoast 62.5
  7. 7 Hashnode 57.8
  8. 8 Uniform 51.6
  9. 9 Storyblok 50.8
  10. 10 Sanity 50.6
Top by Agent Readiness
  1. 1 Bloomreach 63.7
  2. 2 Prismic 53.6
  3. 3 Acoustic 53
  4. 4 Builder.io 45.4
  5. 5 dotCMS 42.3
  6. 6 Yoast 39.1
  7. 7 Contensis 35.4
  8. 8 Storyblok 34.9
  9. 9 Sanity 33.1
  10. 10 Makeswift 30.5
All 34 members of this roster resolve to a scored provider in the catalog.Generated from the catalog build of 15 September 2026, across 27661 providers, using the same computation served by the APIs.io cohort API. Briefs are published for rosters of 5 or more scored providers; below that a distribution is not meaningful.

Work with this as data

Every tag here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

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

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

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