Headless CMS
Providers using this tag (35)
Ranked by API Evangelist rating — Exemplar and Strong are expanded by default.
Exemplar 3 Complete, well-documented, and agent-ready
Developing 9 Usable, with meaningful gaps to close
Thin 10 Limited public surface area
Emerging 10 Early or largely undocumented
Minimal 1 Almost no public developer surface
APIs with this tag (14)
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
Developing 2 Usable, with meaningful gaps to close
Thin 3 Limited public surface area
Contentstack GraphQL Content Delivery APIThe Contentstack GraphQL Content Delivery API enables developers to query content from their Contentstack s...Sitecore XM Cloud Authoring and Management GraphQL APIThe Sitecore XM Cloud Authoring and Management GraphQL API provides a single GraphQL endpoint and schema fo...Sitecore XM Cloud GraphQL Delivery APIThe Sitecore XM Cloud GraphQL Delivery API provides access to approved and published content from Sitecore ...
Emerging 7 Early or largely undocumented
Contensis Delivery APIThe Contensis Delivery API focuses on delivering content created in content types and entries to websites a...Contensis Management APIThe Contensis Management API allows developers to import and manage content within content types and entrie...Caisy APIReal-time GraphQL content API for querying and mutating content stored in Caisy projects. Supports filterin...Hygraph GraphQL Content APINative GraphQL API that auto-generates queries, mutations, and real-time subscriptions from the project con...BaseHub APIGraphQL API for programmatically querying and mutating content in BaseHub repositories. Authenticated via x...WPGraphQL APIExtendable GraphQL API for WordPress that exposes posts, pages, custom post types, users, menus, taxonomies...Wagtail API v2The Wagtail REST API v2 exposes site content — pages, images, documents, and redirects — as JSON. Endpoints...
Score breakdown
Frequency
45.8
log-scaled weighted occurrences
Breadth
1.0
spread across providers
Quality lift
46.1
mean composite of providers using it
Cohesion
26.1
strength of nearest seed neighbor
Related tags
Content Management 31 co-occurrences
Content Delivery 10 co-occurrences
CMS 12 co-occurrences
GraphQL 20 co-occurrences
Pages 6 co-occurrences
Personalization 5 co-occurrences
Assets 7 co-occurrences
REST API 5 co-occurrences
Where this tag comes from
Provider tag33
Api tag14
Cohort brief
Auto-generatedThe 35 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
35
all scored
Mean Kin Score
38
+17.3 vs catalog 20.7
Mean Agent Readiness
23.1
+13.4 vs catalog 9.7
Spread
5–73.7
median 34.5 · σ 15.9
How the 35 split by band
Exemplar 3Strong 2Developing 9Thin 10Emerging 10Minimal 1
Facet averages, against the whole catalog
| Facet | This cohort | Catalog | Difference | Scored |
|---|---|---|---|---|
| Contract Quality | 50.1 | 17.5 | +32.6 | 35 |
| Operational Transparency | 26.9 | 11.3 | +15.6 | 35 |
| Access Clarity | 36 | 22.3 | +13.7 | 35 |
| Developer Ergonomics | 31.4 | 17.9 | +13.5 | 35 |
| Discoverability | 69.7 | 60.4 | +9.3 | 35 |
| Contract Governance | 12.3 | 6.4 | +5.9 | 35 |
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
| Artifact | This cohort | Catalog | Difference |
|---|---|---|---|
| MCP server (any) | 20% | 16% | +4 |
| MCP server (first-party) | 14% | 7% | +7 |
| Agent Skills | 0% | 0% | 0 |
| OAuth scopes | 9% | 9% | 0 |
| Security | 100% | 88% | +12 |
| Arazzo workflows | 6% | 2% | +4 |
| Governance rules | 37% | 13% | +24 |
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 Bloomreach 73.7
- 2 Prismic 70.3
- 3 Acoustic 67.3
- 4 Yoast 64.7
- 5 Hashnode 57
- 6 Storyblok 53.7
- 7 Sanity 52.8
- 8 Uniform 51
- 9 Builder.io 48.1
- 10 Makeswift 47.5
Top by Agent Readiness
- 1 Bloomreach 58.5
- 2 Acoustic 53
- 3 Prismic 48.4
- 4 Yoast 41.3
- 5 Builder.io 35.4
- 6 Storyblok 34.9
- 7 Hashnode 28.8
- 8 Sanity 27.9
- 9 Makeswift 27.3
- 10 Uniform 26.1
All 35 members of this roster resolve to a scored provider in
the catalog.Generated from the catalog build of
25 August 2026, across 26891
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.
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Tools for tags
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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.
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"Discovery needs no key. Ratings and market analysis are Pro.