> For clean Markdown content of this page, append .md to this URL. For the complete documentation index, see https://buildwithfern.com/learn/llms.txt.

## API catalog discovery

api-reference, ai

AI agents, MCP clients, and API catalog crawlers can now discover your APIs automatically. Every Fern Docs site exposes a standards-based ([RFC 9727](https://www.rfc-editor.org/rfc/rfc9727)) `/.well-known/api-catalog` endpoint generated from your visible API Reference navigation.

Read the docs

## Custom URL actions on the Prompt component

components

You can now point `<Prompt>` actions at any AI tool, not just Cursor, Claude, and ChatGPT. Send readers to Perplexity, your own internal AI assistant, or any other URL.

#### Generate a TypeScript SDK

Generate a TypeScript SDK from my OpenAPI spec. Follow the [TypeScript SDK quickstart](https://buildwithfern.com/learn/sdks/generators/typescript/quickstart.md).

**`Markdown`**

```jsx Markdown
<Prompt
  title="Generate a TypeScript SDK"
  actions={[
    { label: "Open in Perplexity", url: "https://www.perplexity.ai/search?q={prompt}", icon: "magnifying-glass" },
    "cursor"
  ]}
>
Generate a TypeScript SDK from my OpenAPI spec. Follow the [TypeScript SDK quickstart](https://buildwithfern.com/learn/sdks/generators/typescript/quickstart.md).
</Prompt>
```

Read the docs