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Head-to-head · Schema Registry Software

AxonOps Schema Registry vs Apicurio Registry

  • Updated Oct 2026
  • Both researched from official sources
  • 1 check side by side
Higher score AxonOps Schema Registry #1 in Schema Registry Software 9.4/10 Free plan Free plan✓ 0 of 2 features Visit AxonOps
Apicurio Registry #3 in Schema Registry Software 9.2/10 Open source ✓ 0 of 2 features Visit Apicurio

AxonOps Schema Registry leads on 0 checks, Apicurio Registry on 0, and 1 is even. Who comes out ahead on the 1 yes/no, price and count check where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreAxonOps Schema Registry · 9.4/10
  • Free planonly AxonOps Schema Registry

AxonOps Schema Registry scores higher on our rubric for schema registry software: 9.4 against 9.2 out of 10; our editors rank them #1 and #3.

AxonOps Schema Registry is the better fit for teams wanting a free, self-hosted registry. Apicurio Registry is the better fit for teams managing APIs and event schemas.

  • AxonOps Schema Registry fits best

    Teams wanting a free, self-hosted registry

  • Apicurio Registry fits best

    Teams managing APIs and event schemas

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature AxonOps Schema Registry 9.4/10 Visit ↗ Apicurio Registry 9.2/10 Visit ↗
At a glance
Editor score 9.4 9.2
Ranking #1 in Schema Registry Software #3 in Schema Registry Software
Best for Teams wanting a free, self-hosted registry Teams managing APIs and event schemas
Pricing model Free Free
Starting price Free plan Open source
Free plan ✓ (best) Not checked yet
Free trial — —
Deployment Self-hosted Self-hosted
Platforms Linux Web
Support Community, Docs Community, Docs
Integrations 7 integrations 7 integrations
Built for Small business, Mid-market, Enterprise Small business, Mid-market, Enterprise
Features AxonOps Schema Registry 0/2 · Apicurio Registry 0/2
Approval workflows Not checked yet Not checked yet
Git synchronization Not checked yet Not checked yet
Specs
Schema formats Avro, Protocol Buffers, JSON Schema Not checked yet
Compatibility modes NONE, BACKWARD, BACKWARD_TRANSITIVE, FORWARD, FORWARD_TRANSITIVE, FULL, FULL_TRANSITIVE Not checked yet
Validation scope Event Not checked yet
Deployment options Self_hosted Not checked yet
Our review
Pros
  • Confluent Schema Registry API compatibility without Kafka-based storage
  • Seven compatibility modes across Avro, Protocol Buffers, and JSON Schema
  • RBAC, audit logging, metrics, and multiple storage backends included
  • Supports API, event, GraphQL, data contract, and schema formats
  • Applies validity, compatibility, and integrity rules to content evolution
  • Offers web, REST, CLI, Maven, SDK, and Kafka runtime tooling
Cons
  • Deployment is self-hosted rather than managed
  • Storage choices require PostgreSQL, MySQL, Cassandra, or in-memory backends
  • Its focus is Kafka-compatible event infrastructure rather than general API schemas
  • Self-hosted deployment places infrastructure responsibility on the team
  • Its broad feature set may exceed the needs of single-format projects
  • Storage requires choosing between PostgreSQL and Apache Kafka backends
Our verdict

AxonOps Schema Registry is an open-source schema registry for teams operating Apache Kafka or Kafka-compatible event infrastructure. It supports Avro, Protocol Buffers, and JSON Schema, while providing Confluent Schema Registry API…

Read the review →

Apicurio Registry is an open-source runtime registry for storing, managing, and sharing API designs, event schemas, and data contracts. It is suited to teams that need versioned artifacts across OpenAPI, AsyncAPI, GraphQL, Avro, Protobuf,…

Read the review →
  1. AxonOps Schema RegistrySchema Registry Software 9.4Free plan
  2. Apicurio RegistrySchema Registry Software 9.2Open source

Strengths and trade-offs

  • AxonOps Schema Registry — where it wins

    • Confluent Schema Registry API compatibility without Kafka-based storage
    • Seven compatibility modes across Avro, Protocol Buffers, and JSON Schema
    • RBAC, audit logging, metrics, and multiple storage backends included

    Where it doesn't

    • Deployment is self-hosted rather than managed
    • Storage choices require PostgreSQL, MySQL, Cassandra, or in-memory backends
    • Its focus is Kafka-compatible event infrastructure rather than general API schemas

  • Apicurio Registry — where it wins

    • Supports API, event, GraphQL, data contract, and schema formats
    • Applies validity, compatibility, and integrity rules to content evolution
    • Offers web, REST, CLI, Maven, SDK, and Kafka runtime tooling

    Where it doesn't

    • Self-hosted deployment places infrastructure responsibility on the team
    • Its broad feature set may exceed the needs of single-format projects
    • Storage requires choosing between PostgreSQL and Apache Kafka backends
  • AxonOps Schema Registry9.4/10 · Free plan

    A free, self-hosted registry with broad schema formats, compatibility modes, and Kafka ecosystem support.

    Visit AxonOpsFull verdict →
  • Apicurio Registry9.2/10 · Open source

    Broad open-source registry coverage for teams managing APIs, events, and data contracts.

    Visit ApicurioFull verdict →

More comparisons

All schema registry software comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update