established · 0.2 capability resource

Schema

Score 25.7 / 100 8 providers +143 via APIs 159 APIs Search apis.io →
Business capabilities this tag reaches
Information & Data Management 2 Marketing Management 1
Variants seen in the corpus: SchemasSchema

Providers using this tag (8)

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

Strong 1 Solid coverage with minor gaps
YoastSEOWordPressContent Optimization3 APIs64.4
Developing 2 Usable, with meaningful gaps to close
MockarooTest DataMock DataAPI MockingData Generation1 API50.3AGNTCYAI AgentsInteroperabilitySpecificationOpen Source4 APIs48.4
Thin 2 Limited public surface area
The GuildAPI CompositionAPI GatewayAPI ObservabilityBreaking Change Detection10 APIs36.7Taxi - Describe How Your APIs and Data RelateAPI DescriptionData IntegrationOpen SourceQuery Language1 API27.9
Emerging 2 Early or largely undocumented
Cap'n ProtoBinary FormatCapability-Based SecurityCode GenerationIPC5 APIs14.1Customer DatabaseAccountConsentContactsCRM13.0
Minimal 1 Almost no public developer surface
Commerce OneCompanyB2BE-CommerceProcurement1 API0.0

APIs with this tag (152)

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 22 Complete, well-documented, and agent-ready
HubSpot Custom Objects APICustom objects allow you to define and create CRM object types that represent data unique to your business....91.6Harness Schemas APIThis contains APIs for Schemas.90.7Snowflake Schema APIThe schema API from Snowflake — 4 operation(s) for schema.82.7Optimizely Schema APIManage the ODP schema including domain objects and their fields.80.8RudderStack Data Catalog APIThe RudderStack Data Catalog API exposes the inventory of events and properties seen across all sources, su...78.5Adobe Suite Schemas APISchemas provide an abstract definition of a real-world object along with constraints and expectations that ...78.3Twilio Schemas APIThe Schemas API from Twilio — 3 operation(s) for schemas.77.8Canonical Schema APIThe schema API from Canonical — 1 operation(s) for schema.76.3Microsoft Azure Resource JSON SchemaJSON Schema definitions for core Azure Resource Manager data models including the base Resource type, Resou...76.2Microsoft Azure Schema APIThe Schema API from Microsoft Azure — 2 operation(s) for schema.76.2Kong Schemas APIThe Schemas API from Kong — 2 operation(s) for schemas.73.2Arcade Public SchemasThe ArcadeAI/schemas repo on GitHub publishes versioned JSON Schemas for the Arcade engine configuration (1...72.9Microsoft Azure API Management Schema APIThe Schema API from Microsoft Azure API Management — 2 operation(s) for schema.72.9Omnisend Event Metadata APIThe Event Metadata API from Omnisend — 3 operation(s) for declaring, merging and querying brand-custom even...72.9Scalar Schemas APIThe schemas API from Scalar — 7 operation(s) for schemas.71.7Authentik Schema APIThe self-describing OpenAPI schema endpoint every authentik instance serves.71.6Lucid Schema APIDefine and retrieve the schema for a collection, specifying the fields, types, and constraints for its data...68.4Lucid Schemas APIEndpoints that deal with lucid resource schemas.68.4Adobe Experience Cloud Schemas APIOperations for managing XDM schemas via the Schema Registry68.2ServiceNow CMDB Meta APIThe ServiceNow CMDB Meta API provides REST endpoints for retrieving metadata about CMDB classes, including ...67.5Encharge Custom Objects Schema APIThe Custom Objects Schema API from Encharge — 10 operation(s) for defining object types, their fields, and ...67.2Lytics Schema APIManage how data sources populate profile fields.66.8
Strong 30 Solid coverage with minor gaps
API Evangelist SchemaThe naming and structure of the digital objects we pass back and forth via APIs within the business and per...66.2Cisco XDR Schemas APIThe Schemas API from Cisco XDR — 2 operation(s) for schemas.65.6Databricks Schemas APIThe Databricks Schemas API is part of Unity Catalog and allows you to create, update, list, and delete sche...65.3Benchling Schemas APISchemas represent custom configuration of objects in Benchling. See this [guide in our documentation](https...64.5Tyk Schema APIGet OAS schema.64.0Bentley Systems Schemas APISchemas resources for the Enterprise Data Federation Service (EDFS) API.63.8Unity Catalog - Schemas APIManage schemas within Unity Catalog catalogs for organizing tables, views, and functions.63.1Factset Schemas APIThe Schemas API from Factset — 2 operation(s) for schemas.63.0Celonis Schema APIThe Schema API from Celonis — 6 operation(s) for schema.62.4Fenergo Schema APIThe Schema API from Fenergo — 4 operation(s) for schema.62.3Fenergo Schemas APIThe Schemas API from Fenergo — 2 operation(s) for schemas.62.3Refuel Schema APIThe Schema API from Refuel — 1 operation(s) for schema.61.6Amazon Entity Resolution Schemas APIThe Schemas API from Amazon Entity Resolution — 2 operation(s) for schemas.60.9Kita Schemas APICustom extraction schemas.60.8NetBox Labs Schema APIThe schema API from NetBox Labs — 1 operation(s) for schema.60.5Ablo Schema APIThe schema API from Ablo — 1 operation(s) for schema.59.9Autodesk Schema APIThe Schema API from Autodesk — 1 operation(s) for schema.59.9GZW Data API Schema APIThe Schema API from GZW Data API — 2 operation(s) for schema.59.7Amazon Web Services Schema APIThe Schema API from Amazon Web Services — 1 operation(s) for schema.59.6Amazon Web Services Schemas APIThe Schemas API from Amazon Web Services — 2 operation(s) for schemas.59.6Fixie Schema APIThe schema API from Fixie — 1 operation(s) for schema.57.9Supaglue Schemas APIA [`Schema`](https://docs.supaglue.com/platform/objects/overview#schemas) allows you to normalize fields fo...57.9Accruent Schema APIThe Schema API from Accruent — 1 operation(s) for schema.56.0SewerAI Schemas APIThe schemas API from SewerAI — 2 operation(s) for schemas.56.0Mixedbread Schemas APIThe schemas API from Mixedbread — 1 operation(s) for schemas.55.5Fusio Schema APIThe schema API from Fusio — 4 operation(s) for schema.55.4Ironclad Schemas APIDocumentation on SCIM Schemas.55.3Looker Studio Schema APIOperations for defining the data structure and field definitions returned by the connector.55.1Mixpanel Schemas APIManage Lexicon schema definitions55.0Prefect Schemas APIThe Schemas API from Prefect — 2 operation(s) for schemas.54.6
Developing 47 Usable, with meaningful gaps to close
SuprSend Schema APIThe Schema API from SuprSend — 3 operation(s) for schema.53.8Monetate Schema APISchema related endpoints.53.3Skedulo Schema APIThe Schema API from Skedulo — 1 operation(s) for schema.53.2Hasura Metadata APIThe Hasura Metadata API allows programmatic management of Hasura GraphQL Engine configuration. All requests...52.9SingleFile Schemas APIJSON schemas for order payloads by entity_type, filing_type and jurisdiction52.5TetraScience Schemas APIThe Schemas API from TetraScience — 9 operation(s) for schemas.50.4Fairmarkit Schema APIThe Schema API from Fairmarkit — 2 operation(s) for schema.50.1Aito Technologies Schema APIThe schema API from Aito Technologies — 5 operation(s) for schema.50.0Nimble Contacts Fields APIUser-definable contact field schema — fields, choice option lists, field groups and tabs, plus primary-valu...50.0Monaco Schemas APIThe Schemas API from Monaco — 1 operation(s) for schemas.49.6Semgrep InterfacesShared interface definitions (ATD-generated types) used between the Semgrep CLI, AppSec Platform, and langu...49.5AGNTCY Schema APIThe Schema API from AGNTCY — 8 operation(s) for schema.48.4Apache APISIX Schema APIValidate resource configurations against APISIX schemas.48.3Authzed Schema APIManage SpiceDB schema definitions, diff schemas, and reflect schema metadata48.3Akamai Schemas APIThe Schemas API from Akamai — 2 operation(s) for schemas.48.0Delta Lake Schemas APISchema discovery APIs48.0Sparetech Schema APIThe Schema API from Sparetech — 2 operation(s) for schema.47.7Nex Schema APIThe Schema API from Nex — 4 operation(s) for schema.47.6Weaviate Schema APIThe schema API from Weaviate — 12 operation(s) for schema.47.6Aptly Schema APIThe Schema API from Aptly — 1 operation(s) for schema.47.5Kaltura Schema APIExpose the schema definitions for syndication MRSS, bulk upload XML and other schema types.47.4PolyAPI Schemas APIManage shared JSON Schema definitions used to type events and application data.47.4VTEX Schemas APIThe Schemas API from VTEX — 4 operation(s) for schemas.47.1Parcha Schemas APIThe schemas API from Parcha — 1 operation(s) for schemas.46.5Leapsome Schemas APIOperations on schemas45.9Select Star Schemas APIThe schemas API from Select Star — 3 operation(s) for schemas.45.9OpsMill Schema APIThe Schema API from OpsMill — 6 operation(s) for schema.45.6Wger Schema APIThe schema API from Wger — 1 operation(s) for schema.45.6AT Protocol Lexicon SchemasLexicon is the schema definition language for AT Protocol. Every record type, XRPC method, and event subscr...45.0SuperDial Schemas APIDiscover the schemas provisioned for your account and the required input keys for each. All non-2xx respons...44.4Utrecht University Schema APIThe schema API from Utrecht University — 1 operation(s) for schema.44.3Protocol Buffers Service Definition SchemaJSON Schema for Protocol Buffers service definition format (.proto files). Describes the structure of gRPC ...43.9GuestReady Schema APIThe schema API from GuestReady — 1 operation(s) for schema.43.4Sensors Data Schema APIThe Schema API from Sensors Data — 13 operation(s) for schema.43.2APIToolkit (Monoscope) Schema APIRetrieve telemetry field schema for a project.42.8Weblate Schema APIThe schema API from Weblate — 1 operation(s) for schema.42.8Regrid Schemas APIField schema definitions for parcel data products42.1Apache Solr Schema APIThe Solr Schema API provides REST endpoints for managing the schema of a Solr collection, including field t...41.6Cognite Schema APISchema provides the expected schema for CDF resources.41.5Popsink Schemas APIThe schemas API from Popsink — 1 operation(s) for schemas.41.1RBS (Ruby Type Signatures)A language for describing the structure of Ruby programs. Lets developers declare classes, modules, method ...40.8Helm Chart.yaml SchemaJSON Schema defining the structure and validation rules for Chart.yaml, the metadata file required in every...40.7Helm Repository Index SchemaJSON Schema for the index.yaml file served by Helm chart repositories. The index is the primary discovery m...40.7Helm Values YAML SchemaJSON Schema describing common conventional patterns for values.yaml files in Helm charts. Values.yaml provi...40.7Conxai Schema APIThe schema API from Conxai — 1 operation(s) for schema.40.6Alation Schemas APIRetrieve schema metadata40.2OpenProject Schemas APIThe schema provides detailed information about the properties of a resource. The schema is represented by a...40.1
Thin 35 Limited public surface area
Google Cloud Pub/Sub Schemas APIOperations for managing Pub/Sub schemas38.8SilverStripe GraphQL APISilverStripe's GraphQL API provides a content API layer for getting data in and out of the CMS. It supports...38.4Docling Core TypesCanonical `DoclingDocument` data model and serialization primitives — text, tables, pictures, layout, hiera...38.3Google Pub/Sub Schemas APIManage Pub/Sub schemas38.1TigerGraph Schema APIThe Schema API from TigerGraph — 3 operation(s) for schema.38.0AppDynamics Schemas APIManage custom event schemas that define the structure and data types for custom analytics events.37.8VAST Data Schemas APIThe schemas endpoint enables you to manage the schemas in a VAST database.37.8Vitess VTAdmin APIVTAdmin is the administrative web application and REST API for managing Vitess clusters. It provides endpoi...37.8Cybersecurity and Infrastructure Security Agency Schema APIJSON Schema for the KEV catalog37.0WAODAO Schema APIRead WAODAO-specific field semantics and discovery links.37.0Grafbase Management APIGraphQL-based management API that powers the Grafbase Dashboard and enables programmatic control of organiz...36.8SmartMind Schema APIThe schema API from SmartMind — 2 operation(s) for schema.36.5Triplit Schema APIDatabase schema management35.9APIGen Schemas APIDefine data schemas for APIs.35.6NetBox Schema APIThe schema API from NetBox — 1 operation(s) for schema.35.6BlindInsight Schemas APIThe schemas API from BlindInsight — 4 operation(s) for schemas.35.0Polygon ID Schemas APIThe Schemas API from Polygon ID — 2 operation(s) for schemas.34.7ISteamUserStatsISteamUserStats provides global achievement percentages, schema for game stats and achievements, and per-us...34.3ISteamWebAPIUtilISteamWebAPIUtil provides helper endpoints — GetServerInfo (Steam server time/version) and GetSupportedAPIL...34.3Confluent Schema Registry Schemas APIThe Schemas API from Confluent Schema Registry — 3 operation(s) for schemas.33.4Emitwise Schema APIActivity data schema definitions.33.0Fragment Schema APIDefine and version the ledger Schema - the chart of accounts, account types (asset, liability, income, expe...31.8Port Blueprints APIEndpoints to create, read, update, and delete blueprints - the schemas that define an organization's data m...31.4Fibery GraphQL APIGraphQL API for querying and mutating Fibery workspace data, with an interactive IDE for schema exploration...30.8Amazon AppSync Schema APIManage GraphQL schema documents30.3Orbital Schemas APIThe Schemas API from Orbital — 2 operation(s) for schemas.30.3Schema.org Markup ValidatorThe Schema.org Markup Validator tests and validates structured data markup against the Schema.org vocabular...30.1Schema.org WebAPI TypeThe Schema.org WebAPI type defines a Web API accessible over Web and Internet technologies. It provides sta...30.1Rossum REST API v1REST API for managing organizations, users, workspaces, queues, schemas, documents, annotations and webhook...29.3Rossum Schemas APIThe Schemas API from Rossum — 1 operation(s) for schemas.29.3Apicurio RegistryOpen-source schema and API artifact registry backed by Red Hat (Apache 2.0). Stores OpenAPI, AsyncAPI, Avro...28.8Confluent Schema RegistryCentral repository with a RESTful interface for registering and evolving schemas in Avro, JSON Schema, and ...28.8Arkose Labs Schema APIMachine-readable request/response schemas28.2Taxi - Describe How Your APIs and Data Relate Schemas APITaxi schema management and compilation27.9MCP SpecificationThe authoritative protocol definition for the Model Context Protocol, maintained at modelcontextprotocol.io...26.7
Emerging 15 Early or largely undocumented
DocuPanda Schemas APICreate, edit, copy, delete, and list extraction schemas, plus AI auto-generate a schema from sample documen...25.9Helium Protobuf DefinitionsCanonical protocol buffer definitions for Helium message formats used across packet routing, oracles, and r...24.1Reactome Schema APIReactome Data: Schema class queries22.8Apache Solr REST APIHTTP/REST API for Apache Solr providing endpoints for querying, indexing, schema management, collections ad...21.8Apache Solr Schema APIPer-collection schema operations21.8Apache Pinot Schemas APIThe Schemas API from Apache Pinot — 2 operation(s) for schemas.20.9Gleeful AI Schema APIThe Schema API from Gleeful AI — 1 operation(s) for schema.20.6Kuehne+Nagel Schemas APIManage schemas for workspaces.20.2Overture SchemaCanonical open schema specification for all Overture themes, maintained in the OvertureMaps/schema GitHub r...19.7Citation File Format SchemaThe CFF schema defines the structure of a CITATION.cff file in YAML, including required cff-version, messag...18.7FVAP.gov Schema APIXML schema definition.17.4Apache Parquet Format SpecificationThe core specification for the Parquet columnar storage format.17.3Zipline Ai Schema APIThe schema API from Zipline Ai — 5 operation(s) for schema.17.3Apache Avro Schema FormatJSON Schema for validating Apache Avro schema definitions. Covers all Avro types including primitive types ...16.9Cap'n Proto Schema LanguageThe Cap'n Proto schema language is used to define message types in .capnp files that are then compiled into...14.1
Minimal 3 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...10.1fauna Schema APIFetch, update, validate, and manage a database's schema as FSL files. Supports staged schema changes with s...0.0xCBL — XML Common Business LibraryxCBL 4.0 is a royalty-free library of XML business documents and reusable components for business-to-busine...0.0

Companies reaching this through an API (143)

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

Ablo Accruent Adobe Experience Cloud Adobe Suite AgStack Foundation Aito Technologies Akamai Alation Amazon AppSync Amazon Entity Resolution Amazon Web Services Apache APISIX Apache Avro Apache Parquet Apache Pinot Apache Solr Apache Solr Apheris API Evangelist APIGen APIs.io Engineering Platform APIToolkit (Monoscope) AppDynamics Aptly Arcade Arkose Labs AT Protocol Authentik Authzed Autodesk Azure Databricks Benchling Bentley Systems BlindInsight Canonical Celonis Cisco XDR Citation File Format Claix Cognite Confluent Schema Registry Conxai Cybersecurity and Infrastructure Security Agency Databricks Delta Lake Docling DocuPanda Emitwise Encharge Events
Show all 143 companies ↓
Factset Fairmarkit Fauna Fenergo Fibery Fixie Fragment Fusio FVAP.gov Gleeful AI Google Cloud Pub/Sub Google Pub/Sub Grafbase gRPC GuestReady GZW Data API Harness Hasura Helium Network Helm HubSpot Ironclad Kaltura Kita Kong Kuehne+Nagel Leapsome Looker Studio Lucid Lytics Microsoft Azure Microsoft Azure API Management Mixedbread Mixpanel Model Context Protocol (MCP) Monaco Monetate NetBox NetBox Labs Nex Nimble Omnisend OpenProject OpsMill Optimizely Orbital Overture Maps Foundation Parcha Passport PingCAP PolyAPI Polygon ID Popsink Port Prefect Reactome Refuel Regrid Rossum Ruby Programming Language and Popular API Gems RudderStack Scalar Schema.org Select Star Semgrep Sensors Data ServiceNow SewerAI SilverStripe SingleFile Skedulo SmartMind Snowflake Sparetech Steam Supaglue SuperDial SuprSend Tabnine TetraScience TigerGraph Triplit Twilio Tyk Utrecht University VAST Data Vitess VTEX WAODAO Weaviate Weblate Wger Zipline Ai

Score breakdown

Frequency
67.6
log-scaled weighted occurrences
Breadth
0.2
spread across providers
Quality lift
39.2
mean composite of providers using it
Cohesion
6.2
strength of nearest seed neighbor

Related tags

Query 25 co-occurrences Entities 13 co-occurrences Cluster 15 co-occurrences Specification 11 co-occurrences Batch 12 co-occurrences Group 25 co-occurrences

Where this tag comes from

Api tag153
Provider tag8
Openapi tag103
Openapi op tag323

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

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have.