established · 1.1 market domain

CMS

Score 26.6 / 100 46 providers +24 via APIs 53 APIs Search apis.io →
Business capabilities this tag reaches
Information Technology Management 1

Providers using this tag (46)

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

Exemplar 3 Complete, well-documented, and agent-ready
Strong 6 Solid coverage with minor gaps
Developing 14 Usable, with meaningful gaps to close
Thin 12 Limited public surface area
Emerging 10 Early or largely undocumented
Minimal 1 Almost no public developer surface

APIs with this tag (53)

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 6 Complete, well-documented, and agent-ready
Strong 8 Solid coverage with minor gaps
Developing 12 Usable, with meaningful gaps to close
Internal Guide CMS JSON-APIAuthenticated access to the Drupal JSON:API behind the internal guide, covering published and unpublished c...48.8Huma CMS APIThe CMS API from Huma — 10 operation(s) for cms.45.4Contentful Content Management APIContentful's Content Management API (CMA) helps you manage content in your spaces. To learn more about how ...44.1Contentful GraphQL Content APIThe GraphQL Content API provides a GraphQL API interface to the content from Contentful. Each Contentful sp...44.1Contentful Images APIThe Contentful Images API allows the retrieval and manipulation of image files referenced from assets.44.1Contentful Preview APIIn addition to the Content Delivery API (CDA) for published content, is the Preview API for previewing both...44.1Contentful SCIM APISystem for Cross-domain Identity Management, or SCIM, is an API specification created to facilitate the man...44.1Contentful User Management APIContentful's User Management API helps organizations programmatically manage their organizations, organizat...44.1Contentful WebhooksContentful webhooks are HTTP callbacks that notify subscriber endpoints when content events (ContentType, E...44.1AmeriHealth Caritas Formulary FHIR APIHL7 FHIR R4 Formulary API published to satisfy CMS-9115-F drug formulary publication requirements for Medic...41.1Strapi WebhooksStrapi includes a built-in webhook system that notifies external services whenever content entries or media...41.0Intlayer CMS APIBackend API for the hosted Intlayer CMS at back.intlayer.org — dictionaries, projects, organizations, envir...40.4
Thin 17 Limited public surface area
SilverStripe GraphQL APISilverStripe's GraphQL API provides a content API layer for getting data in and out of the CMS. It supports...38.4SilverStripe REST APISilverStripe provides REST API capabilities via the restfulserver module, allowing CRUD operations on DataO...38.4PayloadPayload is a TypeScript-first headless CMS and application framework that automatically generates REST, Gra...38.2UCSF Industry Documents Library Content APIPublicly readable REST content API behind the Industry Documents Library website, exposing 320 editorial pa...37.1Wix REST APIThe Wix REST API provides full programmatic access to all Wix platform capabilities via standard HTTP REST ...35.7Zesty Instances APIThe Zesty.io Instances API is a REST API that allows CRUD operations on Zesty.io instances. It provides acc...35.2Craft CMS Element APIOfficial Craft CMS plugin that creates configurable JSON REST endpoints for any element type (entries, asse...33.0Craft CMS GraphQL APIAuto-generated GraphQL API providing schema-based access to Craft CMS content including entries, assets, ca...33.0Armada CMS APIThe CMS API from Armada — 3 operation(s) for cms.30.9Nacelle Storefront Content APIThe `allContent` query returns CMS content entries (pages, articles, marketing blocks, media) ingested from...30.8TinaCMS GraphQL Content APIA GraphQL API generated from your TinaCMS schema that serves Markdown and JSON content stored in Git reposi...30.7Pack Content Management APIGraphQL API to programmatically manage Shopify Hydrogen storefront content — pages, product pages, collecti...30.6Slingshot Bio Content Lake GROQ APIThe Sanity Content Lake GROQ query API for the Slingshot Bio editorial surface — pages, resources, blog pos...30.6Plasmic CMS APIHeadless content API for structured data managed inside Plasmic. Supports reading and writing rows in model...30.2Level Website Content GraphQL APIPublicly reachable GraphQL endpoint served by the Craft CMS instance behind level.co. Introspection is enab...29.8KeystoneJS GraphQL APIAuto-generated GraphQL API served at /api/graphql that provides full CRUD operations for every list in the ...26.4University of Copenhagen Web Platform Source (ku-kom)github.com/ku-kom is the university's GitHub account — a User account rather than an Organization, named "U...26.4
Emerging 9 Early or largely undocumented
Minimal 1 Almost no public developer surface

Companies reaching this through an API (24)

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

Adobe Suite Armada Blubrry API Changelog Condé Nast Droplet Biosciences HubSpot Huma Kaiser Permanente KeystoneJS Level Home Mapp Marketing Cloud Nacelle Naver Optum Oracle Plasmic restor3d Slingshot Biosciences Spotwise Uncodie (now Makinari) University of California, San Francisco University of Copenhagen University of Helsinki

Score breakdown

Frequency
54.6
log-scaled weighted occurrences
Breadth
1.2
spread across providers
Quality lift
49.2
mean composite of providers using it
Cohesion
18.5
strength of nearest seed neighbor

Related tags

Headless CMS 15 co-occurrences Content Management 29 co-occurrences Headless 8 co-occurrences Website Builder 8 co-occurrences Pages 10 co-occurrences Content Delivery 6 co-occurrences Content 23 co-occurrences PHP 5 co-occurrences

Where this tag comes from

Provider tag46
Api tag53
Openapi tag3
Openapi op tag19

Cohort brief

Auto-generated

The 46 providers in the APIs.io catalog tagged CMS, scored on the Kin Score. Every figure below is computed from the catalog — nothing here is written.

Providers
46
all scored
Mean Kin Score
40
+17.1 vs catalog 22.9
Mean Agent Readiness
24.5
+12.6 vs catalog 11.9
Spread
4.2–78
median 39.4 · σ 16.4
How the 46 split by band
Exemplar 3Strong 6Developing 14Thin 12Emerging 10Minimal 1
Facet averages, against the whole catalog
FacetThis cohortCatalogDifferenceScored
Operational Transparency 32.7 13.7 +19 46
Contract Quality 36.3 17.6 +18.7 46
Access Clarity 44.9 26.5 +18.4 46
Developer Ergonomics 40.9 23.2 +17.7 46
Discoverability 66.2 58.1 +8.1 46
Contract Governance 11 6.3 +4.7 46

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) 35% 14% +21
MCP server (first-party) 30% 12% +18
Agent Skills 0% 0% 0
OAuth scopes 24% 11% +13
Security 100% 98% +2
Arazzo workflows 11% 2% +9
Governance rules 35% 14% +21

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 Ghost 78
  2. 2 Acquia 76.8
  3. 3 dotCMS 71.9
  4. 4 Kentico 63.3
  5. 5 Independence Blue Cross 62.5
  6. 6 Webflow 60.6
  7. 7 Contensis 60.3
  8. 8 Webflow API and Documentation 56
  9. 9 Drupal 55.8
  10. 10 Google Sites 52.8
Top by Agent Readiness
  1. 1 Webflow 61.4
  2. 2 Acquia 60.6
  3. 3 Contentful 59.9
  4. 4 Wix 48.9
  5. 5 dotCMS 44
  6. 6 Drupal 42.8
  7. 7 Webflow API and Documentation 38.4
  8. 8 Kentico 37
  9. 9 Independence Blue Cross 36.5
  10. 10 Devoted Health 36.5
All 46 members of this roster resolve to a scored provider in the catalog.Generated from the catalog build of 5 October 2026, across 29093 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

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

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