established · 0.3

Schemas

Score 25.2 / 100 56 providers 56 APIs Search apis.io →
Variants seen in the corpus: Schemasschemas

Providers using this tag (56)

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

Exemplar 4 Complete, well-documented, and agent-ready
TwilioAuthenticationCommunicationsContact CenterEmail115 APIs73.4OmnisendEmail MarketingMarketing AutomationE-CommerceSMS Marketing15 APIs69.9BenchlingLife SciencesBiotechR&DMolecular Biology58 APIs67.8KitaCompanyFintechLendingUnderwriting14 APIs67.7
Strong 14 Solid coverage with minor gaps
FactsetFinancialFinancial DataInvestment AnalyticsMarket Data460 APIs64.8Bentley SystemsInfrastructure EngineeringDigital TwinBIMCAD87 APIs64.1Adobe Experience CloudAnalyticsCustomer ExperienceDigital MarketingPersonalization36 APIs63.4VendastaCompanySoftware-as-a-ServiceMarketplaceSMB38 APIs63.3LucidVisual CollaborationDiagrammingWhiteboardingProductivity5 APIs61.8ArcadeAgentsMCPAI AgentsAuthorization11 APIs60.8DatabricksArtificial IntelligenceAnalyticsApache SparkBig Data57 APIs59.1Amazon Entity ResolutionAmazon Web ServicesData IntegrationData MatchingEntity Resolution3 APIs57.8Azure DatabricksAnalyticsApache SparkBig DataData Engineering39 APIs56.5SupaglueCRMHRISUnified-APIOpen-Source40 APIs56.3MockarooTest DataMock DataAPI MockingData Generation4 APIs55.8MixedbreadArtificial IntelligenceEmbeddingsRerankingSearch14 APIs55.6MixpanelAnalyticsData AnalysisEvent TrackingProduct Analytics22 APIs54.8IroncladContract Lifecycle ManagementCLMContractsLegal Tech13 APIs54.4
Developing 13 Usable, with meaningful gaps to close
TetraScienceScientific DataLife SciencesPharmaBiotech35 APIs52.9KongAPI GatewayAI GatewayAI ConnectivityAgent Gateway139 APIs51.2PolyAPIIntegrationMicroservicesMiddlewareOrchestrations10 APIs50.6ParchaCompanyEnterprise SaasComplianceKYB66 APIs49.7SingleFileCompanyComplianceLegalEntity Management7 APIs49.2Select StarCompanyData CatalogData LineageMetadata26 APIs47.1LeapsomePeople EnablementPerformance ManagementOKRsGoals14 APIs46.0RegridParcelsLand DataProperty DataGeoJSON9 APIs46.0MonacoCompanyCRMSalesRevenue Operations13 APIs44.9PopsinkCompanyChange Data CaptureData ReplicationCDC21 APIs42.9VTEXCommerceE-CommerceRetailMarketplace142 APIs40.5ScalarAPI ClientAPI DocumentationAPI ReferencesCode Generation30 APIs40.3Google Pub/SubCloudEvent-DrivenGoogle CloudMessaging6 APIs39.6
Thin 18 Limited public surface area
PrefectAutomationData PipelineOrchestrationPython63 APIs39.1APIGenCodeDocumentationGenerationOpen-Source8 APIs38.6BlindInsightCompanySecurityEncryptionPrivacy19 APIs38.6VAST DataCompanyInfrastructureStorageData126 APIs38.6AlationData CatalogData GovernanceData IntelligenceData Lineage12 APIs38.0Google Cloud Pub/SubEvent-DrivenGoogle CloudMessagingPub-Sub3 APIs37.5Confluent Schema RegistryApache KafkaAvroCompatibilityConfluent5 APIs36.0Polygon IDIdentityVerifiable CredentialsZero-Knowledge ProofsSelf-Sovereign Identity17 APIs35.9OpenProjectAgileGanttOpen-SourceProject Management62 APIs35.6GrafbaseGraphQLFederationAPI GatewaySchema Registry1 API34.8OrbitalDataGateways6 APIs33.8AkamaiCDNCloudEdge ComputingNetworks204 APIs32.5Taxi - Describe How Your APIs and Data RelateAPI DescriptionData IntegrationOpen-SourceQuery Language8 APIs32.3Test Rate Limit CheckAPI GovernanceAPI ManagementAPI TestingPerformance Testing9 APIs32.3RossumArtificial IntelligenceDocument AIIDPInvoices7 APIs31.2CDataDataData AccessData ConnectivityDatabases11 APIs28.7AppDynamicsAPMApplication Performance MonitoringCiscoCloud Observability25 APIs28.0DocuPandaArtificial IntelligenceDocument ExtractionDocument IntelligenceIDP10 APIs26.2
Emerging 6 Early or largely undocumented
Helium NetworkWirelessIoTLoRaWAN5G5 APIs22.7Apache PinotAnalyticsDatabaseLow LatencyOLAP5 APIs21.8SemgrepStatic AnalysisSASTApplication SecuritySupply Chain6 APIs20.8Amazon Web ServicesAmazonCloudNetworkIndex1804 APIs16.7API SpecificationsAPI SpecificationSpecification LanguagesAPI DesignContracts13 APIs15.4EventsEventEvent-DrivenEvent StreamingMessaging18 APIs14.9
Minimal 1 Almost no public developer surface
PassportParkingMobilitySmart CitiesPayments5 APIs8.1

APIs with this tag (56)

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 4 Complete, well-documented, and agent-ready
Twilio Schemas APIThe Schemas API from Twilio — 3 operation(s) for schemas.73.4Omnisend Event Metadata APIThe Event Metadata API from Omnisend — 3 operation(s) for declaring, merging and querying brand-custom even...69.9Benchling Schemas APISchemas represent custom configuration of objects in Benchling. See this [guide in our documentation](https...67.8Kita Schemas APICustom extraction schemas.67.7
Strong 13 Solid coverage with minor gaps
Factset Schemas APIThe Schemas API from Factset — 2 operation(s) for schemas.64.8Bentley Systems Schemas APISchemas resources for the Enterprise Data Federation Service (EDFS) API.64.1Adobe Experience Cloud Schemas APIOperations for managing XDM schemas via the Schema Registry63.4Vendasta CRM API (gRPC gateway)The CRM surface exposed through the gRPC reverse-proxy gateway: CRMService, CRMAssociationService, CRMCompa...63.3Lucid Data APIThe Lucid Data API enables external applications to create, read, update, and delete structured data linked...61.8Arcade Public SchemasThe ArcadeAI/schemas repo on GitHub publishes versioned JSON Schemas for the Arcade engine configuration (1...60.8Databricks Schemas APIThe Databricks Schemas API is part of Unity Catalog and allows you to create, update, list, and delete sche...59.1Amazon Entity Resolution Schemas APIThe Schemas API from Amazon Entity Resolution — 2 operation(s) for schemas.57.8Unity Catalog - Schemas APIManage schemas within Unity Catalog catalogs for organizing tables, views, and functions.56.5Supaglue Schemas APIA [`Schema`](https://docs.supaglue.com/platform/objects/overview#schemas) allows you to normalize fields fo...56.3Mixedbread schemas APIThe schemas API from Mixedbread — 1 operation(s) for schemas.55.6Mixpanel Schemas APIManage Lexicon schema definitions54.8Ironclad Schemas APIDocumentation on SCIM Schemas.54.4
Developing 13 Usable, with meaningful gaps to close
TetraScience Schemas APIThe Schemas API from TetraScience — 9 operation(s) for schemas.52.9Kong Schemas APIThe Schemas API from Kong — 2 operation(s) for schemas.51.2PolyAPI Schemas APIManage shared JSON Schema definitions used to type events and application data.50.6Parcha schemas APIThe schemas API from Parcha — 1 operation(s) for schemas.49.7SingleFile schemas APIJSON schemas for order payloads by entity_type, filing_type and jurisdiction49.2Select Star schemas APIThe schemas API from Select Star — 3 operation(s) for schemas.47.1Leapsome Schemas APIOperations on schemas46.0Regrid Schemas APIField schema definitions for parcel data products46.0Monaco Schemas APIThe Schemas API from Monaco — 1 operation(s) for schemas.44.9Popsink schemas APIThe schemas API from Popsink — 1 operation(s) for schemas.42.9VTEX Schemas APIThe Schemas API from VTEX — 4 operation(s) for schemas.40.5Scalar schemas APIThe schemas API from Scalar — 7 operation(s) for schemas.40.3Google Pub/Sub Schemas APIManage Pub/Sub schemas39.6
Thin 19 Limited public surface area
Prefect Schemas APIThe Schemas API from Prefect — 2 operation(s) for schemas.39.1APIGen Schemas APIDefine data schemas for APIs.38.6BlindInsight schemas APIThe schemas API from BlindInsight — 4 operation(s) for schemas.38.6VAST Data schemas APIThe schemas endpoint enables you to manage the schemas in a VAST database.38.6Alation Schemas APIRetrieve schema metadata38.0Google Cloud Pub/Sub Schemas APIOperations for managing Pub/Sub schemas37.5Confluent Schema Registry Schemas APIThe Schemas API from Confluent Schema Registry — 3 operation(s) for schemas.36.0Polygon ID Schemas APIThe Schemas API from Polygon ID — 2 operation(s) for schemas.35.9OpenProject Schemas APIThe schema provides detailed information about the properties of a resource. The schema is represented by a...35.6Grafbase Management APIGraphQL-based management API that powers the Grafbase Dashboard and enables programmatic control of organiz...34.8Orbital Schemas APIThe Schemas API from Orbital — 2 operation(s) for schemas.33.8Akamai Schemas APIThe Schemas API from Akamai — 2 operation(s) for schemas.32.5Taxi - Describe How Your APIs and Data Relate Schemas APITaxi schema management and compilation32.3Test Rate Limit Check Schemas APIThe Schemas API from Test Rate Limit Check — 1 operation(s) for schemas.32.3Rossum REST API v1REST API for managing organizations, users, workspaces, queues, schemas, documents, annotations and webhook...31.2Rossum Schemas APIThe Schemas API from Rossum — 1 operation(s) for schemas.31.2CData Metadata APIThe CData Cloud Metadata API exposes catalog information including schemas, tables, columns, keys, and stor...28.7AppDynamics Schemas APIManage custom event schemas that define the structure and data types for custom analytics events.28.0DocuPanda Schemas APICreate, edit, copy, delete, and list extraction schemas, plus AI auto-generate a schema from sample documen...26.2
Emerging 6 Early or largely undocumented
Helium Protobuf DefinitionsCanonical protocol buffer definitions for Helium message formats used across packet routing, oracles, and r...22.7Apache Pinot Schemas APIThe Schemas API from Apache Pinot — 2 operation(s) for schemas.21.8Semgrep InterfacesShared interface definitions (ATD-generated types) used between the Semgrep CLI, AppSec Platform, and langu...20.8Amazon Web Services Schemas APIThe Schemas API from Amazon Web Services — 2 operation(s) for schemas.16.7Apicurio RegistryOpen-source schema and API artifact registry backed by Red Hat (Apache 2.0). Stores OpenAPI, AsyncAPI, Avro...14.9Confluent Schema RegistryCentral repository with a RESTful interface for registering and evolving schemas in Avro, JSON Schema, and ...14.9
Minimal 1 Almost no public developer surface
Passport Parking Event SchemasVersioned JSON schemas for the parking events Passport emits to partners (for example a parking_session_sta...8.1

Score breakdown

Frequency
56.7
log-scaled weighted occurrences
Breadth
1.5
spread across providers
Quality lift
53.1
mean composite of providers using it
Cohesion
0.0
strength of nearest seed neighbor

Related tags

Types 7 co-occurrences Versions 6 co-occurrences Properties 6 co-occurrences Tables 6 co-occurrences Folders 7 co-occurrences Connections 7 co-occurrences Entities 6 co-occurrences Repositories 5 co-occurrences

Where this tag comes from

Api tag56
Provider tag2
Openapi tag40
Openapi op tag137

Cohort brief

Auto-generated

The 56 providers in the APIs.io catalog tagged Schemas, scored on the Kin Score. Every figure below is computed from the catalog — nothing here is written.

Providers
56
all scored
Mean Kin Score
43.7
+23.0 vs catalog 20.7
Mean Agent Readiness
26.4
+16.7 vs catalog 9.7
Spread
8.1–73.4
median 41.7 · σ 15.5
How the 56 split by band
Exemplar 4Strong 14Developing 13Thin 18Emerging 6Minimal 1
Facet averages, against the whole catalog
FacetThis cohortCatalogDifferenceScored
Contract Quality 53.2 17.5 +35.7 56
Developer Ergonomics 40.6 17.9 +22.7 56
Operational Transparency 32.3 11.3 +21 56
Access Clarity 40.5 22.3 +18.2 56
Contract Governance 21.5 6.4 +15.1 56
Discoverability 71.3 60.4 +10.9 56

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) 34% 16% +18
MCP server (first-party) 18% 7% +11
Agent Skills 0% 0% 0
OAuth scopes 23% 9% +14
Security 98% 88% +10
Arazzo workflows 16% 2% +14
Governance rules 66% 13% +53

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 Twilio 73.4
  2. 2 Omnisend 69.9
  3. 3 Benchling 67.8
  4. 4 Kita 67.7
  5. 5 Factset 64.8
  6. 6 Bentley Systems 64.1
  7. 7 Adobe Experience Cloud 63.4
  8. 8 Vendasta 63.3
  9. 9 Lucid 61.8
  10. 10 Arcade 60.8
Top by Agent Readiness
  1. 1 Monaco 58.1
  2. 2 Omnisend 54.3
  3. 3 Factset 52.8
  4. 4 Lucid 48.3
  5. 5 Databricks 40.1
  6. 6 Benchling 39.6
  7. 7 Kita 39.6
  8. 8 Twilio 38.5
  9. 9 Adobe Experience Cloud 38
  10. 10 Akamai 36.3
All 56 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.

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

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