Apicurio website screenshot

Apicurio

Apicurio is an open source API and schema tooling platform maintained by Red Hat under the Apache 2.0 license. It includes Apicurio Registry (a high-performance schema and API design registry), Apicurio Studio (a visual API designer for OpenAPI and AsyncAPI), Apicurio Data Models (a data modeling library), Apicurio Codegen (Java code generation from OpenAPI), and Apicurito (an embedded API editor).

Apicurio publishes 19 APIs on the APIs.io network, including Admin API, AI API, Artifact rules API, and 16 more. Tagged areas include Apache License, API Design, API Registry, Avro, and AsyncAPI.

Apicurio’s developer surface includes authentication, engineering blog, and 8 more developer resources.

📡 Source on GitHub
32.6/100 thin ▬ flat Agent 26/100 agent aware Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0
AccessFreemiumSelf serve⚡ Free to try
1 APIs
Apache LicenseAPI DesignAPI RegistryAvroAsyncAPIJavaOpen-SourceOpenAPIRed HatSchema Registry

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0
Composite quality — 32.6/100 · thin
Contract Quality 12.2 / 23
Developer Ergonomics 4.3 / 18
Access Clarity 2.8 / 18
Operational Transparency 4.3 / 12
Contract Governance 0.0 / 11
Discoverability 5.3 / 9
Create-or-Update Ergonomics 1.1 / 10
Agent readiness — 26/100 · agent aware
Machine-Readable Contract 18 / 18
Agentic Access Contract 10 / 10
Documented Reversibility 0 / 6
MCP Server 0 / 12
Machine-Readable Auth 10 / 10
Idempotency 0 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 7 / 7
Typed Event Surface 0 / 6
Agent Skills 0 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3
A2A Agent Card 0 / 8
Dry-Run / Simulate Mode 4 / 4
Delegated User Identity 0 / 6
Protected Resource Metadata 0 / 5
Registration Without a Human 0 / 6
Agentic Commerce Well-Known Document 0 / 5
Create-or-Update Ergonomics applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from github.com/api-evangelist/apicurio: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 23

Individual APIs this provider publishes, each with its own machine-readable definition.

Apicurio Registry

Apicurio Registry is a high-performance, runtime registry for schemas and API designs. It stores and manages OpenAPI, AsyncAPI, Avro, JSON Schema, Protobuf, and other artifact t...

Apicurio Studio

Apicurio Studio is a visual, zero-code API design tool for creating and editing OpenAPI and AsyncAPI specifications. Note: Apicurio Studio is deprecated in favor of the integrat...

Apicurio Data Models

Apicurio Data Models is a Java and TypeScript library for parsing, validating, and manipulating OpenAPI and AsyncAPI specification documents programmatically.

Apicurio Codegen

Apicurio Codegen generates Java JAX-RS server stubs and client code from OpenAPI specifications, enabling design-first API development workflows.

Apicurio Admin API

The Admin API from Apicurio — 17 operation(s) for admin.

Apicurio AI API

The AI API from Apicurio — 1 operation(s) for ai.

Apicurio Artifact rules API

The Artifact rules API from Apicurio — 2 operation(s) for artifact rules.

Apicurio Artifact Type API

The Artifact Type API from Apicurio — 1 operation(s) for artifact type.

Apicurio Artifacts API

The Artifacts API from Apicurio — 9 operation(s) for artifacts.

Apicurio Branches API

The Branches API from Apicurio — 3 operation(s) for branches.

Apicurio Content API

The Content API from Apicurio — 1 operation(s) for content.

Apicurio Contracts API

The Contracts API from Apicurio — 16 operation(s) for contracts.

Apicurio GitOps API

The GitOps API from Apicurio — 2 operation(s) for gitops.

Apicurio Global rules API

The Global rules API from Apicurio — 2 operation(s) for global rules.

Apicurio Group rules API

The Group rules API from Apicurio — 2 operation(s) for group rules.

Apicurio Groups API

The Groups API from Apicurio — 3 operation(s) for groups.

Apicurio KafkaSQL API

The KafkaSQL API from Apicurio — 1 operation(s) for kafkasql.

Apicurio Metadata API

The Metadata API from Apicurio — 2 operation(s) for metadata.

Apicurio Search API

The Search API from Apicurio — 5 operation(s) for search.

Apicurio Snapshot API

The Snapshot API from Apicurio — 1 operation(s) for snapshot.

Apicurio System API

The System API from Apicurio — 2 operation(s) for system.

Apicurio Users API

The Users API from Apicurio — 1 operation(s) for users.

Apicurio Versions API

The Versions API from Apicurio — 11 operation(s) for versions.

Scroll for all 23

Open Collections 21

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

API Collection

OPEN COLLECTION

Apicurio Registry Admin API

OPEN COLLECTION

Apicurio Registry Admin AI API

OPEN COLLECTION

Apicurio Registry Admin Artifact rules API

OPEN COLLECTION

Apicurio Registry Admin Artifact Type API

OPEN COLLECTION

Apicurio Registry Admin Artifacts API

OPEN COLLECTION

Apicurio Registry Admin Branches API

OPEN COLLECTION

Apicurio Registry Admin Content API

OPEN COLLECTION

Apicurio Registry Admin Contracts API

OPEN COLLECTION

Apicurio Registry Admin GitOps API

OPEN COLLECTION

Apicurio Registry Admin Global rules API

OPEN COLLECTION

Apicurio Registry Admin Group rules API

OPEN COLLECTION

Apicurio Registry Admin Groups API

OPEN COLLECTION

Apicurio Registry Admin KafkaSQL API

OPEN COLLECTION

Apicurio Registry Admin Metadata API

OPEN COLLECTION

Apicurio Registry Admin Search API

OPEN COLLECTION

Apicurio Registry Admin Snapshot API

OPEN COLLECTION

Apicurio Registry Admin System API

OPEN COLLECTION

Apicurio Registry Admin Users API

OPEN COLLECTION

Apicurio Registry Admin Versions API

OPEN COLLECTION

Apicurio Registry API

OPEN COLLECTION

Scroll for all 21

GraphQL 1

GraphQL schemas published by this provider.

Apicurio GraphQL API

GRAPHQL

Pricing Plans 1

Published pricing tiers and plan structures.

Apicurio Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Apicurio Rate Limits

5 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

Apicurio Finops

FINOPS

Security Posture 2

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Apicurio Authentication

http/oauth2 · 2 schemes

SECURITY

Apicurio Domain Security

TLSv1.3

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Apicurio Scopes

3 scopes · clientCredentials

3 scopes

SCOPES

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Apicurio Agentic Access

115 operations · 59 acting · 1 human-in-the-loop

115 operations · 59 acting

AGENTIC

Resources

Documentation 1

Reference material describing how the API behaves

ContributionGuide
ContributionGuide

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess
AgenticAccess

Build 1

SDKs, sample code, and the tooling you integrate with

CodeOfConduct
CodeOfConduct

Access & Security 4

Authentication, authorization, and security posture

SecurityPolicy
SecurityPolicy
 DomainSecurity
DomainSecurity
 Authentication
Authentication
 OAuthScopes
OAuthScopes

Operate 2

Status, limits, changes, and where to get help

IssueTracker
IssueTracker
 Releases
Releases

Company 1

The organization behind the API

Blog
Blog

Source (apis.yml)

apis.yml Raw ↑ 
aid: apicurio
name: Apicurio
description: Apicurio is an open source API and schema tooling platform maintained by Red Hat under the Apache 2.0 license.
  It includes Apicurio Registry (a high-performance schema and API design registry), Apicurio Studio (a visual API designer
  for OpenAPI and AsyncAPI), Apicurio Data Models (a data modeling library), Apicurio Codegen (Java code generation from OpenAPI),
  and Apicurito (an embedded API editor).
type: Index
deliveryModel:
  model: unknown
  open_source: unknown
  commercial: false
  callable_host: false
  label: Delivery model not determined — needs a product licence on record
  confidence: low
  source:
  - openapi
  - repository-unlicensed
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  label: Freemium · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/apicurio.png
tags:
- Apache License
- API Design
- API Registry
- Avro
- AsyncAPI
- Java
- Open-Source
- OpenAPI
- Red Hat
- Schema Registry
tags_raw:
- Apache License
- API Design
- API Registry
- Avro
- AsyncAPI
- Java
- Open Source
- OpenAPI
- Red Hat
- Schema Registry
url: https://raw.githubusercontent.com/api-evangelist/apicurio/refs/heads/main/apis.yml
created: '2026-03-25'
modified: '2026-05-19'
specificationVersion: '0.23'
apis:
- aid: apicurio:apicurio-registry
  name: Apicurio Registry
  description: Apicurio Registry is a high-performance, runtime registry for schemas and API designs. It stores and manages
    OpenAPI, AsyncAPI, Avro, JSON Schema, Protobuf, and other artifact types, providing a REST API for schema management with
    compatibility checking and content versioning.
  humanURL: https://www.apicur.io/registry/
  tags:
  - Avro
  - AsyncAPI
  - Open-Source
  - OpenAPI
  - Protobuf
  - Schema Registry
  tags_raw:
  - Avro
  - AsyncAPI
  - Open Source
  - OpenAPI
  - Protobuf
  - Schema Registry
  properties:
  - type: Documentation
    url: https://www.apicur.io/registry/docs/
  - type: GitHubRepository
    url: https://github.com/Apicurio/apicurio-registry
  - url: graphql/apicurio-graphql.md
    type: GraphQL
- aid: apicurio:apicurio-studio
  name: Apicurio Studio
  description: 'Apicurio Studio is a visual, zero-code API design tool for creating and editing OpenAPI and AsyncAPI specifications.
    Note: Apicurio Studio is deprecated in favor of the integrated design capabilities in Apicurio Registry.'
  humanURL: https://www.apicur.io/studio/
  tags:
  - API Design
  - AsyncAPI
  - Deprecated
  - OpenAPI
  - Visual Designer
  properties:
  - type: Documentation
    url: https://www.apicur.io/studio/docs/
  - type: GitHubRepository
    url: https://github.com/Apicurio/apicurio-studio
- aid: apicurio:apicurio-data-models
  name: Apicurio Data Models
  description: Apicurio Data Models is a Java and TypeScript library for parsing, validating, and manipulating OpenAPI and
    AsyncAPI specification documents programmatically.
  humanURL: https://github.com/Apicurio/apicurio-data-models
  tags:
  - AsyncAPI
  - Data Modeling
  - Java
  - Library
  - OpenAPI
  - TypeScript
  properties:
  - type: GitHubRepository
    url: https://github.com/Apicurio/apicurio-data-models
- aid: apicurio:apicurio-codegen
  name: Apicurio Codegen
  description: Apicurio Codegen generates Java JAX-RS server stubs and client code from OpenAPI specifications, enabling design-first
    API development workflows.
  humanURL: https://github.com/Apicurio/apicurio-codegen
  tags:
  - Code Generation
  - JAX-RS
  - Java
  - OpenAPI
  properties:
  - type: GitHubRepository
    url: https://github.com/Apicurio/apicurio-codegen
- aid: apicurio:apicurio-admin-api
  name: Apicurio Admin API
  description: The Admin API from Apicurio — 17 operation(s) for admin.
  humanURL: https://www.apicur.io/registry/
  tags:
  - Admin
  properties:
  - type: OpenAPI
    url: openapi/apicurio-admin-api-openapi.yml
- aid: apicurio:apicurio-ai-api
  name: Apicurio AI API
  description: The AI API from Apicurio — 1 operation(s) for ai.
  humanURL: https://www.apicur.io/registry/
  tags:
  - Artificial Intelligence
  tags_raw:
  - AI
  properties:
  - type: OpenAPI
    url: openapi/apicurio-ai-api-openapi.yml
- aid: apicurio:apicurio-artifact-rules-api
  name: Apicurio Artifact rules API
  description: The Artifact rules API from Apicurio — 2 operation(s) for artifact rules.
  humanURL: https://www.apicur.io/registry/
  tags:
  - Artifact rules
  properties:
  - type: OpenAPI
    url: openapi/apicurio-artifact-rules-api-openapi.yml
- aid: apicurio:apicurio-artifact-type-api
  name: Apicurio Artifact Type API
  description: The Artifact Type API from Apicurio — 1 operation(s) for artifact type.
  humanURL: https://www.apicur.io/registry/
  tags:
  - Artifact Type
  properties:
  - type: OpenAPI
    url: openapi/apicurio-artifact-type-api-openapi.yml
- aid: apicurio:apicurio-artifacts-api
  name: Apicurio Artifacts API
  description: The Artifacts API from Apicurio — 9 operation(s) for artifacts.
  humanURL: https://www.apicur.io/registry/
  tags:
  - Artifacts
  properties:
  - type: OpenAPI
    url: openapi/apicurio-artifacts-api-openapi.yml
- aid: apicurio:apicurio-branches-api
  name: Apicurio Branches API
  description: The Branches API from Apicurio — 3 operation(s) for branches.
  humanURL: https://www.apicur.io/registry/
  tags:
  - Branches
  properties:
  - type: OpenAPI
    url: openapi/apicurio-branches-api-openapi.yml
- aid: apicurio:apicurio-content-api
  name: Apicurio Content API
  description: The Content API from Apicurio — 1 operation(s) for content.
  humanURL: https://www.apicur.io/registry/
  tags:
  - Content
  properties:
  - type: OpenAPI
    url: openapi/apicurio-content-api-openapi.yml
- aid: apicurio:apicurio-contracts-api
  name: Apicurio Contracts API
  description: The Contracts API from Apicurio — 16 operation(s) for contracts.
  humanURL: https://www.apicur.io/registry/
  tags:
  - Contracts
  properties:
  - type: OpenAPI
    url: openapi/apicurio-contracts-api-openapi.yml
- aid: apicurio:apicurio-gitops-api
  name: Apicurio GitOps API
  description: The GitOps API from Apicurio — 2 operation(s) for gitops.
  humanURL: https://www.apicur.io/registry/
  tags:
  - GitOps
  properties:
  - type: OpenAPI
    url: openapi/apicurio-gitops-api-openapi.yml
- aid: apicurio:apicurio-global-rules-api
  name: Apicurio Global rules API
  description: The Global rules API from Apicurio — 2 operation(s) for global rules.
  humanURL: https://www.apicur.io/registry/
  tags:
  - Global Rules
  tags_raw:
  - Global rules
  properties:
  - type: OpenAPI
    url: openapi/apicurio-global-rules-api-openapi.yml
- aid: apicurio:apicurio-group-rules-api
  name: Apicurio Group rules API
  description: The Group rules API from Apicurio — 2 operation(s) for group rules.
  humanURL: https://www.apicur.io/registry/
  tags:
  - Group rules
  properties:
  - type: OpenAPI
    url: openapi/apicurio-group-rules-api-openapi.yml
- aid: apicurio:apicurio-groups-api
  name: Apicurio Groups API
  description: The Groups API from Apicurio — 3 operation(s) for groups.
  humanURL: https://www.apicur.io/registry/
  tags:
  - Group
  tags_raw:
  - Groups
  properties:
  - type: OpenAPI
    url: openapi/apicurio-groups-api-openapi.yml
- aid: apicurio:apicurio-kafkasql-api
  name: Apicurio KafkaSQL API
  description: The KafkaSQL API from Apicurio — 1 operation(s) for kafkasql.
  humanURL: https://www.apicur.io/registry/
  tags:
  - KafkaSQL
  properties:
  - type: OpenAPI
    url: openapi/apicurio-kafkasql-api-openapi.yml
- aid: apicurio:apicurio-metadata-api
  name: Apicurio Metadata API
  description: The Metadata API from Apicurio — 2 operation(s) for metadata.
  humanURL: https://www.apicur.io/registry/
  tags:
  - Metadata
  properties:
  - type: OpenAPI
    url: openapi/apicurio-metadata-api-openapi.yml
- aid: apicurio:apicurio-search-api
  name: Apicurio Search API
  description: The Search API from Apicurio — 5 operation(s) for search.
  humanURL: https://www.apicur.io/registry/
  tags:
  - Search
  properties:
  - type: OpenAPI
    url: openapi/apicurio-search-api-openapi.yml
- aid: apicurio:apicurio-snapshot-api
  name: Apicurio Snapshot API
  description: The Snapshot API from Apicurio — 1 operation(s) for snapshot.
  humanURL: https://www.apicur.io/registry/
  tags:
  - Snapshot
  properties:
  - type: OpenAPI
    url: openapi/apicurio-snapshot-api-openapi.yml
- aid: apicurio:apicurio-system-api
  name: Apicurio System API
  description: The System API from Apicurio — 2 operation(s) for system.
  humanURL: https://www.apicur.io/registry/
  tags:
  - System
  properties:
  - type: OpenAPI
    url: openapi/apicurio-system-api-openapi.yml
- aid: apicurio:apicurio-users-api
  name: Apicurio Users API
  description: The Users API from Apicurio — 1 operation(s) for users.
  humanURL: https://www.apicur.io/registry/
  tags:
  - User
  tags_raw:
  - Users
  properties:
  - type: OpenAPI
    url: openapi/apicurio-users-api-openapi.yml
- aid: apicurio:apicurio-versions-api
  name: Apicurio Versions API
  description: The Versions API from Apicurio — 11 operation(s) for versions.
  humanURL: https://www.apicur.io/registry/
  tags:
  - Versions
  properties:
  - type: OpenAPI
    url: openapi/apicurio-versions-api-openapi.yml
common:
- type: IssueTracker
  url: https://github.com/Apicurio/apicurio-registry/issues
- type: Releases
  url: https://github.com/Apicurio/apicurio-registry/releases
- type: SecurityPolicy
  url: https://github.com/Apicurio/apicurio-registry/blob/main/SECURITY.md
- type: CodeOfConduct
  url: https://github.com/Apicurio/apicurio-registry/blob/main/CODE_OF_CONDUCT.md
- type: ContributionGuide
  url: https://github.com/Apicurio/apicurio-registry/blob/main/CONTRIBUTING.md
- type: AgenticAccess
  url: agentic-access/apicurio-agentic-access.yml
- type: DomainSecurity
  url: security/apicurio-domain-security.yml
- type: Authentication
  url: authentication/apicurio-authentication.yml
- type: OAuthScopes
  url: scopes/apicurio-scopes.yml
- url: https://www.apicur.io/blog/feed.xml
  type: Blog
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

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