API Validator vs Karate
API Validator
validator.apicommons.org
Karate
karatelabs.ioSide by side
| Figure | API Validator | Karate |
|---|---|---|
| Price from | — | $8.33/mo |
| Free plan | — | Yes |
| Free trial | — | Yes |
| Open source | — | Yes |
| Web | Yes | — |
| Windows | — | Yes |
| macOS | — | Yes |
| Linux | — | Yes |
| API | — | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 0 | 5 |
| Spec score · API Governance Software | 7.6 (#16) | 9.1 (#3) |
| Headquarters | San Francisco, CA | LinkedIn lists headquarters as Worldwide, United States, with locations shown in Sugar Land, London and Bengaluru. |
| License | The repository states that the code is licensed under Apache-2.0. | The core Karate framework is MIT licensed and free forever; enterprise components use a commercial license. |
| Offline use | The entire app can be downloaded as a single self-contained file for local use. | Enterprise customers can activate licenses offline, and the site describes the product as suitable for fully air-gapped environments. |
| Purpose | API Validator lints API descriptions against a Spectral-powered governance ruleset in the browser. | Karate combines API, UI, mock, and performance testing in one framework with readable syntax. |
| Support | The project says API Evangelist offers expert governance services for teams seeking help. | The free tier includes community support, Pro includes priority email support, and Enterprise includes commercial support with an SLA and dedicated Slack channel. |
Plans
Karate
- FreeFree
- IDE Plus$100 a year
- Xplorer Premium$200 a year
- Pro$640 a year
- Karate EnterprisePriced on request
In their own words
API Validator
API Validator has no write-up on Specifiction yet; its figures are above.
Karate
Karate is a testing framework for API, UI, mock, and performance work. Its MIT-licensed core is free for commercial projects and supports REST, GraphQL, and SOAP testing, with JSON and XML assertions and schema validation. It can automate browsers and desktop apps, and combine UI and API steps in one test. Built-in Gatling integration lets teams reuse API tests for performance testing. The Free plan costs nothing and includes community support. Paid plans include IDE Plus at $100 a year, Xplorer Premium at $200 a year, and Pro at $640 a year; Pro adds IDE plugins, debugging, enhanced autocomplete, development async protocol testing, and priority email support. The platform lists integrations including AWS, Google Cloud, Azure, Jenkins, GitHub Actions, Maven, Gradle, Docker, IntelliJ, VS Code, and Gatling. Enterprise async protocol testing covers Kafka, gRPC, and WebSocket, but production CI/CD execution requires an Enterprise runtime license. Platforms include API, extension, Linux, macOS, self-hosted, and Windows.