Tech riderRev. 30 Sept 2026
AxonOps Schema Registry
- 1Runs onAPI, Linux, self-hosted
- 2CostsFree plan
- 3Schema formatsAvro, Protocol Buffers, JSON Schema
- 4Compatibility modesNONE, BACKWARD, BACKWARD TRANSITIVE, FORWARD, FORWARD TRANSITIVE, FULL, FULL TRANSITIVE
- 5Validation scopeevent
- 6Deployment optionsself hosted
6 lines stated Written from the maker's own pages: github.com

Overview
AxonOps Schema Registry is ranked #8 of 24 in schema registry software on Specifiction. It runs on API, Linux, Self-hosted. There is a free plan.
AxonOps Schema Registry plans and pricing
All plansAxonOps Schema Registry Free 100% free and open source; Apache 2.0 licensed No hidden costs · no premium tiers · no license keys github.com · 30 Sept 2026
Compared on schema registry software
- Free plan
- Yesgithub.com
- Schema formats
- Avro, Protocol Buffers, JSON Schemagithub.com
- Compatibility modes
- NONE, BACKWARD, BACKWARD_TRANSITIVE, FORWARD, FORWARD_TRANSITIVE, FULL, FULL_TRANSITIVEgithub.com
- Validation scope
- eventgithub.com
- Deployment options
- self_hostedgithub.com
Facts
- Purpose
- AxonOps Schema Registry is an API-compatible replacement for Confluent Schema Registry for managing schemas used with Apache Kafka.github.com · 30 Sept 2026
- Storage
- It can store schemas in PostgreSQL, MySQL, or Cassandra and does not require Kafka as its storage backend.github.com · 30 Sept 2026
- Client compatibility
- The maker says existing Confluent serializers and Java, Go, and Python Kafka clients work by pointing them at the registry URL.github.com · 30 Sept 2026
- Security
- Built-in security includes Basic Auth, API keys, JWT, LDAP/AD, OIDC, mTLS, four RBAC roles, rate limiting, and TLS certificate auto-reload.github.com · 30 Sept 2026
- Audit logging
- Audit events can be sent to stdout, rotating files, syslog over TCP/TLS, or webhooks, in JSON or CEF format.github.com · 30 Sept 2026
- Field encryption
- Client-side field encryption includes a DEK/KEK registry and production-ready integrations with HashiCorp Vault and OpenBao Transit.github.com · 30 Sept 2026
- Data contracts
- Data contracts attach metadata tags and domain, migration, and encoding rules to schemas, with defaults and per-subject overrides.github.com · 30 Sept 2026
- AI integration
- Its built-in MCP server is marked beta and supports AI clients including Claude, Cursor, VS Code Copilot, and Windsurf.github.com · 30 Sept 2026
- Deployment
- The registry is a single statically linked binary of about 50 MB and can run as a Docker container or be built from source.github.com · 30 Sept 2026
- Notable limit
- The Cassandra storage backend requires Cassandra 5.0 or later; earlier versions are unsupported.github.com · 30 Sept 2026
- Support
- The project README says commercial support plans are offered by AxonOps; it also welcomes community issues and contributions.github.com · 30 Sept 2026
- Maker
- The project identifies AxonOps as its maker and links to the AxonOps website.github.com · 30 Sept 2026
Company
- Headquarters
- London, United Kingdomgithub.com · 23 Sept 2026
Best AxonOps Schema Registry alternatives
See all 20 All accessCh 01 Confluent Cloud Free planFree trialAPI from $385/mo7.5 All accessCh 02 Buf Schema Registry Free planFree trialAPI from $0.50/mo7.4 All accessCh 03 Google Cloud Pub/Sub Free planFree trialAPI from $40/mo7.3 All accessCh 04 TIBCO Messaging Schema Repository for Apache Kafka Free planAPILinux Free to start7.2 All accessCh 05 Apache Pulsar Free planAPILinux Free to start7.1 All accessCh 06 Sourcemeta One Free planLinuxWeb Free to start7.1
Where it ranks on Specifiction
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Sources
- github.com/axonops/axonops-schema-registry· checked 30 Sept 2026



