Schema
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
Thin 2 Limited public surface area
Emerging 1 Early or largely undocumented
Minimal 2 Almost no public developer surface
APIs with this tag (176)
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....Twilio Schemas APIThe Schemas API from Twilio — 3 operation(s) for schemas.Harness Schemas APIThis contains APIs for Schemas.Optimizely Schema APIManage the ODP schema including domain objects and their fields.Snowflake Schema APIThe schema API from Snowflake — 4 operation(s) for schema.Adobe Suite Schemas APISchemas provide an abstract definition of a real-world object along with constraints and expectations that ...RudderStack Data Catalog APIThe RudderStack Data Catalog API exposes the inventory of events and properties seen across all sources, su...Microsoft Azure Resource JSON SchemaJSON Schema definitions for core Azure Resource Manager data models including the base Resource type, Resou...Microsoft Azure Schema APIThe Schema API from Microsoft Azure — 2 operation(s) for schema.Canonical Schema APIThe schema API from Canonical — 1 operation(s) for schema.Omnisend Event Metadata APIThe Event Metadata API from Omnisend — 3 operation(s) for declaring, merging and querying brand-custom even...Clarify Schemas APIThe Schemas API from Clarify — 9 operation(s) for schemas.Kong Schemas APIThe Schemas API from Kong — 2 operation(s) for schemas.Microsoft Azure API Management Schema APIThe Schema API from Microsoft Azure API Management — 2 operation(s) for schema.Scalar Schemas APIThe schemas API from Scalar — 7 operation(s) for schemas.Authentik Schema APIThe self-describing OpenAPI schema endpoint every authentik instance serves.Lucid Schema APIDefine and retrieve the schema for a collection, specifying the fields, types, and constraints for its data...Lucid Schemas APIEndpoints that deal with lucid resource schemas.Cisco XDR Schemas APIThe Schemas API from Cisco XDR — 2 operation(s) for schemas.Encharge Custom Objects Schema APIThe Custom Objects Schema API from Encharge — 10 operation(s) for defining object types, their fields, and ...Adobe Experience Cloud Schemas APIOperations for managing XDM schemas via the Schema RegistryAPI Evangelist SchemaThe naming and structure of the digital objects we pass back and forth via APIs within the business and per...
Strong 36 Solid coverage with minor gaps
ServiceNow CMDB Meta APIThe ServiceNow CMDB Meta API provides REST endpoints for retrieving metadata about CMDB classes, including ...Benchling Schemas APISchemas represent custom configuration of objects in Benchling. See this [guide in our documentation](https...Clarifymedical Schemas APIThe Schemas API from Clarifymedical — 9 operation(s) for schemas.Lytics Schema APIManage how data sources populate profile fields.Open Food Facts Schema APIThe Schema API from Open Food Facts — 1 operation(s) for schema.Bentley Systems Schemas APISchemas resources for the Enterprise Data Federation Service (EDFS) API.SewerAI Schema APIThe Schema API from SewerAI — 3 operation(s) for schema.SewerAI Schemas APIThe schemas API from SewerAI — 2 operation(s) for schemas.Fenergo Schema APIThe Schema API from Fenergo — 4 operation(s) for schema.Fenergo Schemas APIThe Schemas API from Fenergo — 2 operation(s) for schemas.Celonis Schema APIThe Schema API from Celonis — 6 operation(s) for schema.Refuel Schema APIThe Schema API from Refuel — 1 operation(s) for schema.Amazon Entity Resolution Schemas APIThe Schemas API from Amazon Entity Resolution — 2 operation(s) for schemas.Factset Schemas APIThe Schemas API from Factset — 2 operation(s) for schemas.PingCAP Schema APIEndpoints for retrieving database and table schema information from the TiDB information schema.Kita Schemas APICustom extraction schemas.NetBox Labs Schema APIThe schema API from NetBox Labs — 1 operation(s) for schema.Autodesk Schema APIThe Schema API from Autodesk — 1 operation(s) for schema.Ablo Schema APIThe schema API from Ablo — 1 operation(s) for schema.Tyk Schema APIGet OAS schema.Fusio Schema APIThe schema API from Fusio — 4 operation(s) for schema.Hookdeck Schemas APIDestination types describe the available event delivery targets and their configuration schemas. Use these ...Hookbase Schemas APIThe Schemas API from Hookbase — 3 operation(s) for schemas.emem Schema APIThe Schema API from emem — 1 operation(s) for schema.Amazon Web Services Schema APIThe Schema API from Amazon Web Services — 1 operation(s) for schema.Amazon Web Services Schemas APIThe Schemas API from Amazon Web Services — 2 operation(s) for schemas.IVANS Schema APIThe schema API from IVANS — 1 operation(s) for schema.Unity Catalog - Schemas APIManage schemas within Unity Catalog catalogs for organizing tables, views, and functions.Fixie Schema APIThe schema API from Fixie — 1 operation(s) for schema.Databricks Schemas APIThe Databricks Schemas API is part of Unity Catalog and allows you to create, update, list, and delete sche...Supaglue Schemas APIA [`Schema`](https://docs.supaglue.com/platform/objects/overview#schemas) allows you to normalize fields fo...Aito Technologies Schema APIThe schema API from Aito Technologies — 5 operation(s) for schema.Accruent Schema APIThe Schema API from Accruent — 1 operation(s) for schema.Perk Schemas APIThe Schemas API from Perk — 5 operation(s) for schemas.GZW Data API Schema APIThe Schema API from GZW Data API — 2 operation(s) for schema.ANP2 Schemas APIThe Schemas API from ANP2 — 1 operation(s) for schemas.
Developing 55 Usable, with meaningful gaps to close
Looker Studio Schema APIOperations for defining the data structure and field definitions returned by the connector.Mixpanel Schemas APIManage Lexicon schema definitionsPrefect Schemas APIThe Schemas API from Prefect — 2 operation(s) for schemas.Claix Schemas APIConsulta de los schemas creados en la cuentaMonetate Schema APISchema related endpoints.Skedulo Schema APIThe Schema API from Skedulo — 1 operation(s) for schema.Mixedbread Schemas APIThe schemas API from Mixedbread — 1 operation(s) for schemas.Parcha Schemas APIThe schemas API from Parcha — 1 operation(s) for schemas.SingleFile Schemas APIJSON schemas for order payloads by entity_type, filing_type and jurisdictionIronclad Schemas APIDocumentation on SCIM Schemas.Hasura Metadata APIThe Hasura Metadata API allows programmatic management of Hasura GraphQL Engine configuration. All requests...Weaviate Schema APIThe schema API from Weaviate — 12 operation(s) for schema.Fairmarkit Schema APIThe Schema API from Fairmarkit — 2 operation(s) for schema.Johnson Controls Schemas APIA collection of JSON schemas for describing enumerations and object types.Nimble Contacts Fields APIUser-definable contact field schema — fields, choice option lists, field groups and tabs, plus primary-valu...Monaco Schemas APIThe Schemas API from Monaco — 1 operation(s) for schemas.AGNTCY Schema APIThe Schema API from AGNTCY — 8 operation(s) for schema.DocuPipe Schema APIThe Schema API from DocuPipe — 8 operation(s) for schema.DocuPipe Schemas APICreate, edit, copy, delete, and list extraction schemas, plus AI auto-generate a schema from sample documen...Nex Schema APIThe Schema API from Nex — 4 operation(s) for schema.Sparetech Schema APIThe Schema API from Sparetech — 2 operation(s) for schema.Aptly Schema APIThe Schema API from Aptly — 1 operation(s) for schema.VTEX Schemas APIThe Schemas API from VTEX — 4 operation(s) for schemas.Apache APISIX Schema APIValidate resource configurations against APISIX schemas.Akamai Schemas APIThe Schemas API from Akamai — 2 operation(s) for schemas.Delta Lake Schemas APISchema discovery APIsWger Schema APIThe schema API from Wger — 1 operation(s) for schema.CloudTruth Schema APIThe Schema API from CloudTruth — 1 operation(s) for schema.SecureAuth (incl. Cloudentity) Schemas APIThe Schemas API from SecureAuth (incl. Cloudentity) — 6 operation(s) for schemas.Liblab Schema APIThe Schema API from Liblab — 1 operation(s) for schema.PolyAPI Schemas APIManage shared JSON Schema definitions used to type events and application data.Select Star Schemas APIThe schemas API from Select Star — 3 operation(s) for schemas.OpsMill Schema APIThe Schema API from OpsMill — 6 operation(s) for schema.SuprSend Schema APIThe Schema API from SuprSend — 3 operation(s) for schema.SuperDial Schemas APIDiscover the schemas provisioned for your account and the required input keys for each. All non-2xx respons...GuestReady Schema APIThe schema API from GuestReady — 1 operation(s) for schema.Kaltura Schema APIExpose the schema definitions for syndication MRSS, bulk upload XML and other schema types.Cognite Schema APISchema provides the expected schema for CDF resources.Sensors Data Schema APIThe Schema API from Sensors Data — 13 operation(s) for schema.Cognee Schema APISchema inspection endpoints for a dataset's derived schema inventory and the caller-wide memory provenance ...Protocol Buffers Service Definition SchemaJSON Schema for Protocol Buffers service definition format (.proto files). Describes the structure of gRPC ...Tabnine Schemas APIThe Schemas API from Tabnine — 1 operation(s) for schemas.APIToolkit (Monoscope) Schema APIRetrieve telemetry field schema for a project.Popsink Schemas APIThe schemas API from Popsink — 1 operation(s) for schemas.Authzed Schema APIManage SpiceDB schema definitions, diff schemas, and reflect schema metadataRBS (Ruby Type Signatures)A language for describing the structure of Ruby programs. Lets developers declare classes, modules, method ...Conxai Schema APIThe schema API from Conxai — 1 operation(s) for schema.Alation Schemas APIRetrieve schema metadataOpenProject Schemas APIThe schema provides detailed information about the properties of a resource. The schema is represented by a...Opply Schema APIThe Schema API from Opply — 1 operation(s) for schema.Leapsome Schemas APIOperations on schemasUtrecht University Schema APIThe schema API from Utrecht University — 1 operation(s) for schema.Helm Chart.yaml SchemaJSON Schema defining the structure and validation rules for Chart.yaml, the metadata file required in every...Helm Repository Index SchemaJSON Schema for the index.yaml file served by Helm chart repositories. The index is the primary discovery m...Helm Values YAML SchemaJSON Schema describing common conventional patterns for values.yaml files in Helm charts. Values.yaml provi...
Thin 42 Limited public surface area
Google Cloud Pub/Sub Schemas APIOperations for managing Pub/Sub schemasTetraScience Schemas APIThe Schemas API from TetraScience — 9 operation(s) for schemas.VAST Data Schemas APIThe schemas endpoint enables you to manage the schemas in a VAST database.Docling Core TypesCanonical `DoclingDocument` data model and serialization primitives — text, tables, pictures, layout, hiera...Google Pub/Sub Schemas APIManage Pub/Sub schemasAgStack Foundation Schema APIThe Schema API from AgStack Foundation — 1 operation(s) for schema.WAODAO Schema APIRead WAODAO-specific field semantics and discovery links.Apache Solr Schema APIThe Solr Schema API provides REST endpoints for managing the schema of a Solr collection, including field t...SmartMind Schema APIThe schema API from SmartMind — 2 operation(s) for schema.AT Protocol Lexicon SchemasLexicon is the schema definition language for AT Protocol. Every record type, XRPC method, and event subscr...AppDynamics Schemas APIManage custom event schemas that define the structure and data types for custom analytics events.Vitess VTAdmin APIVTAdmin is the administrative web application and REST API for managing Vitess clusters. It provides endpoi...Weblate Schema APIThe schema API from Weblate — 1 operation(s) for schema.BlindInsight Schemas APIThe schemas API from BlindInsight — 4 operation(s) for schemas.APIGen Schemas APIDefine data schemas for APIs.NetBox Schema APIThe schema API from NetBox — 1 operation(s) for schema.Regrid Schemas APIField schema definitions for parcel data productsLucidchart Schemas APIEndpoints that deal with lucid resource schemas.Confluent Schema Registry Schemas APIThe Schemas API from Confluent Schema Registry — 3 operation(s) for schemas.Emitwise Schema APIActivity data schema definitions.ISteamUserStatsISteamUserStats provides global achievement percentages, schema for game stats and achievements, and per-us...ISteamWebAPIUtilISteamWebAPIUtil provides helper endpoints — GetServerInfo (Steam server time/version) and GetSupportedAPIL...Grafbase Management APIGraphQL-based management API that powers the Grafbase Dashboard and enables programmatic control of organiz...SilverStripe GraphQL APISilverStripe's GraphQL API provides a content API layer for getting data in and out of the CMS. It supports...Cybersecurity and Infrastructure Security Agency Schema APIJSON Schema for the KEV catalogAmazon AppSync Schema APIManage GraphQL schema documentsUnity Catalog Schemas APIA schema (also called a database) is the second layer of Unity Catalog’s three-level namespace. A schema or...Triplit Schema APIDatabase schema managementTigerGraph Schema APIThe Schema API from TigerGraph — 3 operation(s) for schema.Apicurio RegistryOpen-source schema and API artifact registry backed by Red Hat (Apache 2.0). Stores OpenAPI, AsyncAPI, Avro...Confluent Schema RegistryCentral repository with a RESTful interface for registering and evolving schemas in Avro, JSON Schema, and ...Polygon ID Schemas APIThe Schemas API from Polygon ID — 2 operation(s) for schemas.Rossum REST API v1REST API for managing organizations, users, workspaces, queues, schemas, documents, annotations and webhook...Rossum Schemas APIThe Schemas API from Rossum — 1 operation(s) for schemas.Apheris Schema APIThe Schema API from Apheris — 1 operation(s) for schema.Orbital Schemas APIThe Schemas API from Orbital — 2 operation(s) for schemas.Schema.org Markup ValidatorThe Schema.org Markup Validator tests and validates structured data markup against the Schema.org vocabular...Schema.org WebAPI TypeThe Schema.org WebAPI type defines a Web API accessible over Web and Internet technologies. It provides sta...Arkose Labs Schema APIMachine-readable request/response schemasMCP SpecificationThe authoritative protocol definition for the Model Context Protocol, maintained at modelcontextprotocol.io...Taxi - Describe How Your APIs and Data Relate Schemas APITaxi schema management and compilationSemgrep InterfacesShared interface definitions (ATD-generated types) used between the Semgrep CLI, AppSec Platform, and langu...
Emerging 18 Early or largely undocumented
CVAT Schema APIThe schema API from CVAT — 1 operation(s) for schema.Port Blueprints APIEndpoints to create, read, update, and delete blueprints - the schemas that define an organization's data m...Fibery GraphQL APIGraphQL API for querying and mutating Fibery workspace data, with an interactive IDE for schema exploration...Fragment Schema APIDefine and version the ledger Schema - the chart of accounts, account types (asset, liability, income, expe...Apache Solr REST APIHTTP/REST API for Apache Solr providing endpoints for querying, indexing, schema management, collections ad...Apache Solr Schema APIPer-collection schema operationsReactome Schema APIReactome Data: Schema class queriesKuehne+Nagel Schemas APIManage schemas for workspaces.Apache Pinot Schemas APIThe Schemas API from Apache Pinot — 2 operation(s) for schemas.Gleeful AI Schema APIThe Schema API from Gleeful AI — 1 operation(s) for schema.Helium Protobuf DefinitionsCanonical protocol buffer definitions for Helium message formats used across packet routing, oracles, and r...FVAP.gov Schema APIXML schema definition.Zipline Ai Schema APIThe schema API from Zipline Ai — 5 operation(s) for schema.Apache Parquet Format SpecificationThe core specification for the Parquet columnar storage format.Citation File Format SchemaThe CFF schema defines the structure of a CITATION.cff file in YAML, including required cff-version, messag...Apache Avro Schema FormatJSON Schema for validating Apache Avro schema definitions. Covers all Avro types including primitive types ...Overture SchemaCanonical open schema specification for all Overture themes, maintained in the OvertureMaps/schema GitHub r...Cap'n Proto Schema LanguageThe Cap'n Proto schema language is used to define message types in .capnp files that are then compiled into...
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...fauna Schema APIFetch, update, validate, and manage a database's schema as FSL files. Supports staged schema changes with s...xCBL — XML Common Business LibraryxCBL 4.0 is a royalty-free library of XML business documents and reusable components for business-to-busine...
Companies reaching this through an API (159)
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
ANP2
Apache APISIX
Apache Avro
Apache Parquet
Apache Pinot
Apache Solr
Apache Solr
Apheris
API Evangelist
APIGen
APIs.io Engineering Platform
APIToolkit (Monoscope)
AppDynamics
Aptly
Arkose Labs
AT Protocol
Authentik
Authzed
Autodesk
Azure Databricks
Bentley Systems
BlindInsight
Canonical
Celonis
Cisco XDR
Citation File Format
Claix
Clarify
Clarifymedical
CloudTruth
Cognee
Cognite
Confluent Schema Registry
Conxai
CVAT
Cybersecurity and Infrastructure Security Agency
Databricks
Delta Lake
Docling
Show all 159 companies ↓
DocuPipe
emem
Emitwise
Encharge
Events
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
Hookbase
Hookdeck
HubSpot
Ironclad
IVANS
Johnson Controls
Kaltura
Kita
Kong
Kuehne+Nagel
Leapsome
Liblab
Looker Studio
Lucid
Lucidchart
Lytics
Microsoft Azure
Microsoft Azure API Management
Mixedbread
Mixpanel
Model Context Protocol (MCP)
Monaco
Monetate
NetBox
NetBox Labs
Nex
Nimble
Omnisend
Open Food Facts
OpenProject
Opply
OpsMill
Optimizely
Orbital
Overture Maps Foundation
Parcha
Passport
Perk
PingCAP
PolyAPI
Polygon ID
Popsink
Port
Prefect
Reactome
Refuel
Regrid
Rossum
Ruby Programming Language and Popular API Gems
RudderStack
Scalar
Schema.org
SecureAuth (incl. Cloudentity)
Select Star
Semgrep
Sensors Data
ServiceNow
SewerAI
SilverStripe
SingleFile
Skedulo
SmartMind
Snowflake
Sparetech
Steam
Supaglue
SuperDial
SuprSend
Tabnine
TetraScience
TigerGraph
Triplit
Twilio
Tyk
Unity Catalog
Utrecht University
VAST Data
Vitess
VTEX
WAODAO
Weaviate
Weblate
Wger
Zipline Ai
Score breakdown
Frequency
67.7
log-scaled weighted occurrences
Breadth
0.2
spread across providers
Quality lift
31.5
mean composite of providers using it
Cohesion
5.9
strength of nearest seed neighbor
Related tags
Query 25 co-occurrences
Group 28 co-occurrences
Workspace 20 co-occurrences
Cluster 15 co-occurrences
Specification 11 co-occurrences
Tables 11 co-occurrences
Where this tag comes from
Api tag176
Provider tag8
Openapi tag116
Openapi op tag347
Work with this as data
Every tag here is available over the APIs.io API and to AI agents over MCP.