OpenAPI Generator vs Speakeasy
OpenAPI Generator
openapi-generator.tech
Speakeasy
speakeasy.comSide by side
| Figure | OpenAPI Generator | Speakeasy |
|---|---|---|
| Price from | Free | — |
| Free plan | Yes | — |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | Yes | Yes |
| macOS | Yes | Yes |
| Linux | Yes | Yes |
| API | — | Yes |
| Self-hosted | Yes | — |
| Plans published | 1 | 1 |
| Spec score · API Generation Software | 7.7 (#11) | 7.2 (#15) |
| Spec score · Code Generators | 7.8 (#21) | 7.2 (#27) |
| Spec score · API Development Tools | 7.9 (#22) | 7.2 (#30) |
| Integrations | The project documents Gradle, Maven, sbt, Bazel, GitHub, and CI/CD integrations; Cake is a third-party add-in. | Example integrations named by Speakeasy include Linear, Salesforce, Slack, GitHub, Vercel, Snowflake, HubSpot, Datadog, and PagerDuty. |
Plans
In their own words
OpenAPI Generator
OpenAPI Generator produces API clients, server stubs, and documentation from OpenAPI 2.0 and 3.x documents. It offers more than 50 client generators and server stub generation for over 40 languages and technologies, including Java, Kotlin, Go, and PHP. Other outputs include Apache2 configuration, MySQL, GraphQL schemas, and formats such as HTML and Cwiki. It can also convert OpenAPI 2.0 documents into OpenAPI 3.x JSON or YAML. Generated output can be adapted with Mustache templates, configuration-provided files and extensions, or custom generators. Installation choices include npm, Homebrew, Scoop, PyPI, Docker, JAR, JBang, and a Bash launcher. The project documents Gradle, Maven, sbt, Bazel, GitHub, and CI/CD integrations. Supported operating systems include Linux, macOS, and Windows, though installer availability varies by system. The JAR option requires Java 11 or later. The project is free and describes a Slack community for questions and guidance.