Karate vs Specmatic
Karate
karatelabs.ioSpecmatic
specmatic.ioSide by side
| Figure | Karate | Specmatic |
|---|---|---|
| Price from | $8.33/mo | $1.67/mo |
| Free plan | Yes | Yes |
| Free trial | Yes | — |
| Open source | Yes | — |
| Windows | Yes | Yes |
| macOS | Yes | Yes |
| Linux | Yes | Yes |
| API | Yes | — |
| Self-hosted | Yes | Yes |
| Plans published | 5 | 8 |
| Spec score · Contract Testing Tools | 9.1 (#1) | 7.8 (#13) |
| Spec score · Integration Testing Tools | 9.2 (#2) | 7.8 (#18) |
| Protocols | Async integrations include Kafka, gRPC, WebSocket, ActiveMQ and RabbitMQ. | The site lists protocols including HTTP/REST, Kafka, gRPC, GraphQL, Google Pub/Sub, JMS, MQTT, RabbitMQ, SOAP, WebSocket, and MCP. |
| Purpose | Karate combines API, UI, mock, and performance testing in one framework with readable syntax. | Specmatic transforms API specifications into executable contracts for designing, building, and governing APIs. |
| Support | The free tier includes community support, Pro includes priority email support, and Enterprise includes commercial support with an SLA and dedicated Slack channel. | The Open Source plan includes standard open source support, while Enterprise includes dedicated email support with a 24-hour turnaround time. |
Plans
Karate
- FreeFree
- IDE Plus$100 a year
- Xplorer Premium$200 a year
- Pro$640 a year
- Karate EnterprisePriced on request
Specmatic
- Open Source (Free)Free
- Enterprise Tier — Next 1,000 Seats$20 a year
- Enterprise Tier — Next 500 Seats$30 a year
- Enterprise Tier — 251–500 Seats$40 a year
- Enterprise Tier — Next 250 Seats$40 a year
- Enterprise Tier — First 250 Seats$50 a year
- Enterprise Tier — 2,000+ Seats$120 a year
- Enterprise Tier — More than 2,000 Seats$120 a year
In their own words
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.
Specmatic
Specmatic turns API specifications into executable contracts for designing, building, and governing APIs. Its suite includes Genie, which generates API specifications from plain English; Studio for visual API workflows and contract testing; and Insights for API governance and analytics. Listed formats include OpenAPI, AsyncAPI, Avro, GraphQL SDL, Protobuf, WSDL, and Arazzo. Protocols include HTTP/REST, Kafka, gRPC, GraphQL, Google Pub/Sub, JMS, MQTT, RabbitMQ, SOAP, WebSocket, and MCP. The free Open Source plan includes contract and API resilience testing, service virtualization, backward compatibility testing, a proxy server, and a specification coverage report. Enterprise adds Studio and Insights, available as SaaS or on-premise, alongside additional protocol and workflow capabilities. The software supports Linux, macOS, Windows, and self-hosted environments, with installation options including shell and PowerShell scripts, npm, and pip. A free plan is available; the pricing note lists paid access from $10/user/mo (annual).