A resource for common and standardised OpenAPI specification (vendor) extensions.
As well as a list of vendor-documented specification-extensions, this repository contains the results of two analyses of extensions, formats and $ref siblings used in real-world OpenAPI definitions, as at late March 2017 and April 2021.
See also this blog post.
- Adyen
- AIRR
- Alibaba Cloud API Gateway
- Amazon AWS
- api-ref-resolver
- Apiary
- Apigee-127
- APIMatic
- APIs.guru
- Bump.sh
- Bungie.net
- DocuSign
- EVRYTHNG
- Exegesis
- express-openapi
- Fern
- GitHub
- go-swagger
- Google Cloud Endpoints
- IBM API Connect
- IBM Watson Orchestrate
- Kusk
- Kusk Gateway
- Microsoft Azure
- Microsoft Connectors
- Microsoft Flow
- Microsoft Typespec (fka Cadl)
- Nintex Workflow Cloud
- NSwagStudio/NJsonSchema - documentation pending (x-typeName, x-enumNames)
- ReadMe.io
- Red Hat Fuse Online
- Redocly
- RepreZen Swagger-Normalizer
- Restish
- SAP OpenAPI Specification Extensions for the SAP Ecosystem
- Speakeasy
- Spring Cloud Contract OpenAPI 3.0 Converter
- SQL-Translator-Parser-OpenAPI
- Stoplight
- Stripe
- swagger-codegen
- SwaggerHub
- swaggerplusplus
- Twilio
- TypeForm OpenAPI-micro-merge
- Unisys COBOL
- Vert.x
- WaveMaker Studio (x-WM- extensions) - documentation pending
- WSO2 API Microgateway
- Yandex API Gateway
- Zuplo
| Facet | Analysis |
|---|---|
| Extensions | 193953 definitions |
| Formats | 193953 definitions |
| Ref Sibling | 193953 definitions |
| Source | Analysis |
|---|---|
| APIs.guru | 391 definitions |
| GitHub | 25136 definitions |
| Mermade | 454 definitions |
| SOM Research HAPI | 513 definitions |
| SwaggerHub | 22872 definitions |
| Combined | 49366 definitions |
| Source | Analysis |
|---|---|
| APIs.guru | 391 definitions |
| GitHub | 25136 definitions |
| Mermade | 454 definitions |
| SOM Research HAPI | 513 definitions |
| SwaggerHub | 22872 definitions |
| Combined | 49366 definitions |
| Source | Analysis |
|---|---|
| Combined | 49366 definitions |