> For clean Markdown content of this page, append .md to this URL. For the complete documentation index, see https://buildwithfern.com/learn/llms.txt. # Endpoints ## Docs - [HTTP JSON Endpoints](https://buildwithfern.com/learn/api-definitions/openapi/endpoints/http.md): Document HTTP JSON APIs with the `application/json` content type - [Webhooks](https://buildwithfern.com/learn/api-definitions/openapi/endpoints/webhooks.md): Learn how to define webhooks using OpenAPI 3.1 native support or Fern's extensions. Generate webhook docs and SDK verification utilities. - [Multipart file upload](https://buildwithfern.com/learn/api-definitions/openapi/endpoints/multipart.md): Document endpoints with the `multipart/form-data` content type - [Server-sent events and streaming APIs](https://buildwithfern.com/learn/api-definitions/openapi/endpoints/sse.md): Use the `x-fern-streaming` extension to model streaming endpoints