# OpenAPI Tools — developer ecosystem report

> A collection of tools for OpenAPI specifications. (NOTE: This organization is not affiliated with OpenAPI Initiative (OAI))

- GitHub org: `OpenAPITools`
- Category: dev_tool
- Overall score: 49.0 / 100
- Overall rank: #238
- Last refreshed: 2026-08-20

## Pillar scores

| Pillar | Score / 100 | Rank | Weight in overall |
| --- | --- | --- | --- |
| Code & Polish | 59.0 | #244 | ~22% |
| Education | 71.0 | #336 | ~18% |
| AI readiness | 21.0 | #575 | part of Reach |
| Builder experience | 0.0 | #1 | ~12% |
| Community | 62.0 | #45 | ~16% |
| Reach | 30.0 | #720 | ~18% |
| Momentum | 19.0 | #649 | ~14% |

## Links

- GitHub: https://github.com/OpenAPITools
- Website: https://openapitools.org
- Docs: https://swagger.io/

## Public GitHub totals

| Metric | Value |
| --- | --- |
| Repos analyzed | 12 |
| Stars | 30,390 |
| Forks | 8,317 |
| Open issues | 5,959 |
| Contributors | — |

## Top repositories

| Repo | Stars | Language | Description |
| --- | --- | --- | --- |
| [openapi-generator](https://github.com/OpenAPITools/openapi-generator) | 26,682 | Java | OpenAPI Generator allows generation of API client libraries (SDK generation), server stubs, documentation and configurat |
| [openapi-generator-cli](https://github.com/OpenAPITools/openapi-generator-cli) | 1,972 | TypeScript | A node package wrapper for https://github.com/OpenAPITools/openapi-generator |
| [openapi-diff](https://github.com/OpenAPITools/openapi-diff) | 1,096 | Java | Utility for comparing two OpenAPI specifications. |
| [openapi-style-validator](https://github.com/OpenAPITools/openapi-style-validator) | 236 | Java | A customizable style validator to make sure your OpenAPI spec follows your organization's standards. |
| [jackson-databind-nullable](https://github.com/OpenAPITools/jackson-databind-nullable) | 152 | Java | JsonNullable wrapper class and Jackson module to support meaningful null values |
| [openapi-generator-bazel](https://github.com/OpenAPITools/openapi-generator-bazel) | 74 | Starlark | Bazel plugin for OpenAPI Generator |
| [openapi-petstore](https://github.com/OpenAPITools/openapi-petstore) | 53 | Java | The pet store sample |
| [sbt-openapi-generator](https://github.com/OpenAPITools/sbt-openapi-generator) | 43 | Scala | — |
| [openapi-generator-pip](https://github.com/OpenAPITools/openapi-generator-pip) | 30 | Python | pip installer for OpenAPI Generator |
| [swagger-parser](https://github.com/OpenAPITools/swagger-parser) | 16 | Java | Fork of swagger-api/swagger-parser |
| [empoa](https://github.com/OpenAPITools/empoa) | 11 | Java | Code (implementation, experiments, tools...) for the Eclipse MicroProfile OpenAPI project |
| [openapi-json-schema-generator](https://github.com/OpenAPITools/openapi-json-schema-generator) | 8 | Java | An unmaintained out of date version of this project |

## Methodology

Scores are computed from public signals only (GitHub, package registries, docs sites, community platforms). Pillar definitions: https://www.smoower.com/docs.md

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