emerging · -0.2 capability resource

JSON:API

Score 20.9 / 100 27 providers +5 via APIs 10 APIs Search apis.io →
Variants seen in the corpus: JSON APIJSON-APIJSON:API

Providers using this tag (27)

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

Exemplar 2 Complete, well-documented, and agent-ready
Commerce LayerHeadless CommerceComposable CommerceAPI-FirstE-Commerce3 APIs70.8UnitFintechBackend-as-a-ServiceBankingPayments18 APIs69.1
Strong 2 Solid coverage with minor gaps
CobotCompanyCo-WorkingWorkspace ManagementSpace Management1 API55.9NationBuilderCommunity OrganizingCRMPoliticalNon-Profit1 API55.2
Developing 16 Usable, with meaningful gaps to close
Credo AICompanyAI Governanceai-risk-managementResponsible AI4 APIs50.3PadletCollaborationEducationVisual CollaborationContent1 API49.9DecisivCompanycommercial-vehicleFleet Managementservice-relationship-management13 APIs49.1VergeSenseOccupancy IntelligenceWorkplace AnalyticsCorporate Real EstatePropTech1 API49.1JebbitCompanyInteractive ExperiencesZero-Party DataFirst-Party Data1 API48.7OpalCompanyConsumerMarketingContent Planning6 APIs47.2Beyond PricingCompanyShort-Term RentalsVacation RentalsRevenue Management1 API45.2University of OttawaUniversityHigher EducationEducationCanada3 APIs44.4farmOSAgricultureFarm ManagementOpen-Source1 API43.5AnkorstoreCompanyRetailWholesaleMarketplace3 APIs42.9TYPO3CMSContent ManagementEnterprisePHP1 API42.7Scout RFP (Workday Strategic Sourcing)CompanyEnterpriseProcurementStrategic Sourcing11 APIs42.6Election Assistance CommissionFederal-GovernmentElectionsVotingOpen Data2 APIs41.4ParaşütCompanyAccountingPre-AccountingE-Invoicing1 API40.6BooqableRental ManagementInventoryEquipment RentalBookings1 API39.8TransistorPodcastingPodcast HostingAnalyticsMedia1 API39.8
Thin 3 Limited public surface area
PinpointATSRecruitmentHiringHR Tech1 API35.1AddeparCompanyFintechWealth ManagementPortfolio-Management1 API33.9The IndexIndie WebSmall WebDirectoriesSearch2 APIs30.0
Emerging 3 Early or largely undocumented
TranscripticCompanyLife SciencesLaboratory AutomationCloud Lab1 API21.1StrateosCompanyLife SciencesLaboratory AutomationRobotics1 API20.9SunlightCompanyEducationEdTechLearning1 API18.0
Unrated 1 Not yet scored
CarServCompanyAutomotiveAuto RepairShop Management

APIs with this tag (10)

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 1 Complete, well-documented, and agent-ready
Acquia Content APIThe stable JSON:API 1.1 surface shared by every Acquia Source CMS site, plus the OAuth 2.0 endpoints that i...75.8
Strong 1 Solid coverage with minor gaps
Origin Studio Production APIThe Origin Studio metadata management API — records, record lifecycles, fields, datasets, media, credits, c...55.8
Developing 6 Usable, with meaningful gaps to close
Course pages CMSDrupal JSON:API behind the course pages — course descriptions, materials and related content. Declares an o...54.1Internal Guide CMS JSON-APIAuthenticated access to the Drupal JSON:API behind the internal guide, covering published and unpublished c...54.1uottawa.ca Content JSON:APIUndocumented, anonymously readable JSON:API 1.0 surface on the University of Ottawa's own Drupal web platfo...44.4Emory Digital Library Program Search API (Blacklight JSON:API)The Emory Libraries Digital Library Program discovery layer (dlp-lux) exposes its Blacklight search index a...43.3Ruby on Rails (API Mode)Rails generated with the --api flag boots a slimmer middleware stack and an ApplicationController inheritin...43.1EAC Content JSON:APIA live, anonymous, read-only JSON:API 1.0 surface served by the EAC's own Drupal 10 web platform at https:/...41.4
Thin 1 Limited public surface area
Addepar APIJSON:API-based REST API for portfolio management, transactions, positions, the ownership graph (entities/gr...33.9
Emerging 1 Early or largely undocumented
Strateos Web APIThe Strateos / Transcriptic web API is a JSON:API-based interface for managing organizations, projects, run...20.9

Companies reaching this through an API (5)

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

Acquia Emory University Fabric Origin Ruby Programming Language and Popular API Gems University of Helsinki

Score breakdown

Frequency
42.8
log-scaled weighted occurrences
Breadth
0.7
spread across providers
Quality lift
49.2
mean composite of providers using it
Cohesion
1.5
strength of nearest seed neighbor

Related tags

Content 6 co-occurrences Discovery 5 co-occurrences Customers 5 co-occurrences Application 5 co-occurrences Account 7 co-occurrences Webhook 11 co-occurrences Education 5 co-occurrences User 9 co-occurrences

Where this tag comes from

Api tag10
Provider tag27

Cohort brief

Auto-generated

The 26 providers in the APIs.io catalog tagged JSON:API, scored on the Kin Score. Every figure below is computed from the catalog — nothing here is written.

Providers
26
all scored
Mean Kin Score
43.4
+19.6 vs catalog 23.8
Mean Agent Readiness
28.2
+16.6 vs catalog 11.6
Spread
18–70.8
median 43.2 · σ 12.3
How the 26 split by band
Exemplar 2Strong 2Developing 16Thin 3Emerging 3Minimal 0
Facet averages, against the whole catalog
FacetThis cohortCatalogDifferenceScored
Contract Quality 49.8 19.8 +30 26
Developer Ergonomics 47.9 23.3 +24.6 26
Operational Transparency 32.1 13.9 +18.2 26
Access Clarity 37.7 26.3 +11.4 26
Discoverability 71.1 61 +10.1 26
Contract Governance 11.4 6.3 +5.1 26

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) 19% 10% +9
MCP server (first-party) 15% 9% +6
Agent Skills 0% 0% 0
OAuth scopes 37% 11% +26
Security 100% 97% +3
Arazzo workflows 7% 2% +5
Governance rules 11% 14% -3

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 Commerce Layer 70.8
  2. 2 Unit 69.1
  3. 3 Cobot 55.9
  4. 4 NationBuilder 55.2
  5. 5 Credo AI 50.3
  6. 6 Padlet 49.9
  7. 7 Decisiv 49.1
  8. 8 VergeSense 49.1
  9. 9 Jebbit 48.7
  10. 10 Opal 47.2
Top by Agent Readiness
  1. 1 Decisiv 49
  2. 2 Padlet 47.7
  3. 3 Cobot 46.9
  4. 4 Beyond Pricing 40.5
  5. 5 Ankorstore 39
  6. 6 VergeSense 38.2
  7. 7 NationBuilder 35.8
  8. 8 Jebbit 35.8
  9. 9 Commerce Layer 34.7
  10. 10 Unit 32.8
All 27 members of this roster resolve to a scored provider in the catalog.Generated from the catalog build of 9 September 2026, across 27528 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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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

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

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