Side by side
Apicurio Registry vs Karate
Both stand on contract testing tools. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Choose Apicurio Registry if you need an open-source registry for API designs and evolving data schemas, with Kafka integration and configurable storage. Teams should account for enabling authentication and authorization where needed, and should not use the in-memory quick-start server for production.
Visit Apicurio Registry
Karate offers a free framework spanning API, UI, mock, and performance testing, with paid plans for additional IDE and client features. The production CI/CD license condition for async protocols matters for teams evaluating Kafka, gRPC, or WebSocket testing.
Visit KarateThe facts
| Apicurio Registry | Karate | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Not published | Yes |
| Runs on | API, Linux, Mac, Self-hosted, Web, Windows | API, Extension, Linux, Mac, Self-hosted, Windows |
| Lowest paid plan | Not published | IDE Plus: $100 per user a year |
| Plans published | None | 5 |
| Maker | Not published | Not published |
| Website | apicur.io | karatelabs.io |
| On contract testing tools | #2 of 22 | #1 of 22 |
Apicurio Registry: what it does well
- Stores API designs and schemas through a REST API.
- Supports API discovery for OpenAPI and AsyncAPI.
- Covers multiple schema and contract formats.
- Content rules can check validity, compatibility, and integrity.
- Offers Kafka serializers, deserializers, and Kafka Connect integration.
What to know first
- Authentication and authorization options are disabled by default.
- The quick-start in-memory server is non-persistent and not for production.
- The native CLI is marked dev-preview and unstable.
Karate: what it does well
- Free MIT-licensed framework for commercial projects
- Supports REST, GraphQL, and SOAP testing
- Combines UI and API steps in tests
- API tests can be reused for performance testing
- Products run locally or in customer infrastructure
What to know first
- Free tier includes community support
- IDE Plus costs $100 a year
- Pro costs $640 a year
- Production CI/CD async testing requires an Enterprise runtime license
Alternatives to Apicurio Registry Alternatives to Karate The whole list