OpenAPI Setup

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Add an OpenAPI specification file

To describe your endpoints with OpenAPI, make sure you have a valid OpenAPI document in either JSON or YAML format that follows the OpenAPI specification. Your document must follow OpenAPI specification 3.0+.

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Auto-populate API pages

The fastest way to get started with OpenAPI is to add an openapi field to a tab or anchor in the mint.json. This field can contain either the path to an OpenAPI document in your docs repo, or the URL of a hosted OpenAPI document. Mintlify will automatically generate a page for each OpenAPI operation and place them in the tab/anchor.

Example with Anchors:

{
  "anchors": [
    {
      "name": "API Reference",
      "openapi": "/path/to/openapi.json",
      "url": "api-reference",
      "icon": "square-terminal"
    }
  ]
}

Example with Tabs:

{
  "tabs": [
    {
      "name": "API Reference",
      "url": "api-reference",
      "openapi": "https://petstore3.swagger.io/api/v3/openapi.json"
    }
  ]
}

When using this option, the metadata for the generated pages will have the following default values:

• title: The summary field from the OpenAPI operation, if present. Otherwise a title generated from the HTTP method and endpoint.

• description: The description field from the OpenAPI operation, if present.

• version: The version value from the anchor or tab, if present.

There are some scenarios in which the default behavior isn’t sufficient. If you need more customizability, you can create an MDX page for your OpenAPI operation, and modify it just like any other MDX page.

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Create MDX files for API pages

If you want to customize the page metadata, add additional content, omit certain OpenAPI operations, or reorder OpenAPI pages in your navigation, you’ll need an MDX page for each operation. Here is an example MDX OpenAPI page from Elevenlabs.

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Autogenerate files

For large OpenAPI documents, creating one MDX page for each OpenAPI operation can be a lot of work. To make it easier, we created a local OpenAPI page scraper.

Our Mintlify scraper autogenerates MDX files for your OpenAPI endpoints. Use the relative path to the OpenAPI document in your codebase.

npx @mintlify/scraping@latest openapi-file <path-to-openapi-file>

Add the -o flag to specify a folder to populate the files into. If a folder is not specified, the files will populate in the working directory.

npx @mintlify/scraping@latest openapi-file <path-to-openapi-file> -o api-reference

Learn more about our scraping package here.

The scraper will output an array of Navigation entries containing your OpenAPI MDX files. You can either append these entries to your existing Navigation, or reorder and add the files to your navigation manually.

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Manually specify files

You can always create an MDX page manually, and reference the OpenAPI operation in the page’s metadata using the openapi field.

By using the OpenAPI reference, the name, description, parameters, responses, and the API playground will be automatically generated from the OpenAPI document.

If you have multiple OpenAPI files, include the path to the OpenAPI file to ensure Mintlify finds the correct OpenAPI document. This is not required if you have only one OpenAPI file - it will automatically detect your OpenAPI file.

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Create MDX files for OpenAPI schemas

Mintlify also allows you to create individual pages for any OpenAPI schema defined in an OpenAPI document’s components.schemas field: