# SvelteKit (/es/quickstarts/sveltekit)

<!-- agent-signals: reading_time_min: 4 · est_tokens: 2100 · updated: 2026-07-30 -->
Related: [Node.js](/es/quickstarts/nodejs.md), [Next.js](/es/quickstarts/nextjs.md), [Express](/es/quickstarts/express.md), [NestJS](/es/quickstarts/nestjs.md), [Fastify](/es/quickstarts/fastify.md), [Hono](/es/quickstarts/hono.md)

<div id="prerequisites">
  ## Requisitos previos [#requisitos-previos]
</div>

* Un proyecto con SvelteKit
* Una clave de API de Firecrawl — [obtén una gratis](https://www.firecrawl.dev/app/api-keys)

<div id="install-the-sdk">
  ## Instala el SDK [#instala-el-sdk]
</div>

```bash
npm install firecrawl
```

Añade tu clave de API a `.env`:

```bash
FIRECRAWL_API_KEY=fc-YOUR-API-KEY
```

<div id="search-the-web">
  ## Buscar en la web [#buscar-en-la-web]
</div>

Crea una `action` de formulario en `src/routes/search/+page.server.ts`:

```typescript
import { Firecrawl } from "firecrawl";
import { FIRECRAWL_API_KEY } from "$env/static/private";

const firecrawl = new Firecrawl({ apiKey: FIRECRAWL_API_KEY });

export const actions = {
  default: async ({ request }) => {
    const data = await request.formData();
    const query = data.get("query") as string;
    const results = await firecrawl.search(query, { limit: 5 });
    return { results: (results.web || []).map((r) => ({ title: r.title, url: r.url })) };
  },
};
```

Configúralo en `src/routes/search/+page.svelte`:

```svelte
<script>
  export let form;
</script>

<form method="POST">
  <input name="query" placeholder="Search the web..." />
  <button>Search</button>
</form>

{#if form?.results}
  {#each form.results as result}
    <div><a href={result.url}>{result.title}</a></div>
  {/each}
{/if}
```

<div id="scrape-a-page">
  ## Hacer scraping de una página [#hacer-scraping-de-una-página]
</div>

Obtén datos en la función `load` en `src/routes/scrape/+page.server.ts`:

```typescript
import { Firecrawl } from "firecrawl";
import { FIRECRAWL_API_KEY } from "$env/static/private";

const firecrawl = new Firecrawl({ apiKey: FIRECRAWL_API_KEY });

export async function load({ url }) {
  const target = url.searchParams.get("url");
  if (!target) return { markdown: null };

  const result = await firecrawl.scrape(target);
  return { markdown: result.markdown };
}
```

Muéstralo en `src/routes/scrape/+page.svelte`:

```svelte
<script>
  export let data;
</script>

{#if data.markdown}
  <pre>{data.markdown}</pre>
{:else}
  <p>Pasa ?url= para hacer scraping de una página</p>
{/if}
```

<div id="interact-with-a-page">
  ## Interactúa con una página [#interactúa-con-una-página]
</div>

Crea un endpoint del servidor en `src/routes/api/interact/+server.ts`:

```typescript
import { json } from "@sveltejs/kit";
import { Firecrawl } from "firecrawl";
import { FIRECRAWL_API_KEY } from "$env/static/private";

const firecrawl = new Firecrawl({ apiKey: FIRECRAWL_API_KEY });

export async function POST() {
  const result = await firecrawl.scrape("https://www.amazon.com", {
    formats: ["markdown"],
  });

  const scrapeId = result.metadata?.scrapeId;

  await firecrawl.interact(scrapeId, {
    prompt: "Search for iPhone 16 Pro Max",
  });

  const response = await firecrawl.interact(scrapeId, {
    prompt: "Click on the first result and tell me the price",
  });

  await firecrawl.stopInteraction(scrapeId);

  return json({ output: response.output });
}
```

<div id="next-steps">
  ## Próximos pasos [#próximos-pasos]
</div>

<CardGroup cols="2">
  <Card title="Documentación de scraping" icon="<svg xmlns=&#x22;http://www.w3.org/2000/svg&#x22; viewBox=&#x22;0 0 24 24&#x22; fill=&#x22;none&#x22;><path d=&#x22;M8 7L16 7&#x22; stroke=&#x22;currentColor&#x22; stroke-linecap=&#x22;round&#x22; stroke-linejoin=&#x22;round&#x22; stroke-width=&#x22;1.5&#x22;/><path d=&#x22;M8 11L12 11&#x22; stroke=&#x22;currentColor&#x22; stroke-linecap=&#x22;round&#x22; stroke-linejoin=&#x22;round&#x22; stroke-width=&#x22;1.5&#x22;/><path d=&#x22;M13 21.5V21C13 18.1716 13 16.7574 13.8787 15.8787C14.7574 15 16.1716 15 19 15H19.5M20 13.3431V10C20 6.22876 20 4.34315 18.8284 3.17157C17.6569 2 15.7712 2 12 2C8.22877 2 6.34315 2 5.17157 3.17157C4 4.34314 4 6.22876 4 10L4 14.5442C4 17.7892 4 19.4117 4.88607 20.5107C5.06508 20.7327 5.26731 20.9349 5.48933 21.1139C6.58831 22 8.21082 22 11.4558 22C12.1614 22 12.5141 22 12.8372 21.886C12.9044 21.8623 12.9702 21.835 13.0345 21.8043C13.3436 21.6564 13.593 21.407 14.0919 20.9081L18.8284 16.1716C19.4065 15.5935 19.6955 15.3045 19.8478 14.9369C20 14.5694 20 14.1606 20 13.3431Z&#x22; stroke=&#x22;currentColor&#x22; stroke-linecap=&#x22;round&#x22; stroke-linejoin=&#x22;round&#x22; stroke-width=&#x22;1.5&#x22;/></svg>" href="/es/features/scrape">
    Todas las opciones de scraping, incluidos los formatos, las acciones y los proxies
  </Card>

  <Card title="Documentación de búsqueda" icon="<svg xmlns=&#x22;http://www.w3.org/2000/svg&#x22; viewBox=&#x22;0 0 24 24&#x22; fill=&#x22;none&#x22;><path d=&#x22;M8 7L16 7&#x22; stroke=&#x22;currentColor&#x22; stroke-linecap=&#x22;round&#x22; stroke-linejoin=&#x22;round&#x22; stroke-width=&#x22;1.5&#x22;/><path d=&#x22;M8 11L12 11&#x22; stroke=&#x22;currentColor&#x22; stroke-linecap=&#x22;round&#x22; stroke-linejoin=&#x22;round&#x22; stroke-width=&#x22;1.5&#x22;/><path d=&#x22;M13 21.5V21C13 18.1716 13 16.7574 13.8787 15.8787C14.7574 15 16.1716 15 19 15H19.5M20 13.3431V10C20 6.22876 20 4.34315 18.8284 3.17157C17.6569 2 15.7712 2 12 2C8.22877 2 6.34315 2 5.17157 3.17157C4 4.34314 4 6.22876 4 10L4 14.5442C4 17.7892 4 19.4117 4.88607 20.5107C5.06508 20.7327 5.26731 20.9349 5.48933 21.1139C6.58831 22 8.21082 22 11.4558 22C12.1614 22 12.5141 22 12.8372 21.886C12.9044 21.8623 12.9702 21.835 13.0345 21.8043C13.3436 21.6564 13.593 21.407 14.0919 20.9081L18.8284 16.1716C19.4065 15.5935 19.6955 15.3045 19.8478 14.9369C20 14.5694 20 14.1606 20 13.3431Z&#x22; stroke=&#x22;currentColor&#x22; stroke-linecap=&#x22;round&#x22; stroke-linejoin=&#x22;round&#x22; stroke-width=&#x22;1.5&#x22;/></svg>" href="/es/features/search">
    Busca en la web y obtén el contenido completo de la página
  </Card>

  <Card title="Documentación de Interact" icon="<svg xmlns=&#x22;http://www.w3.org/2000/svg&#x22; viewBox=&#x22;0 0 24 24&#x22; fill=&#x22;none&#x22;><path d=&#x22;M8 7L16 7&#x22; stroke=&#x22;currentColor&#x22; stroke-linecap=&#x22;round&#x22; stroke-linejoin=&#x22;round&#x22; stroke-width=&#x22;1.5&#x22;/><path d=&#x22;M8 11L12 11&#x22; stroke=&#x22;currentColor&#x22; stroke-linecap=&#x22;round&#x22; stroke-linejoin=&#x22;round&#x22; stroke-width=&#x22;1.5&#x22;/><path d=&#x22;M13 21.5V21C13 18.1716 13 16.7574 13.8787 15.8787C14.7574 15 16.1716 15 19 15H19.5M20 13.3431V10C20 6.22876 20 4.34315 18.8284 3.17157C17.6569 2 15.7712 2 12 2C8.22877 2 6.34315 2 5.17157 3.17157C4 4.34314 4 6.22876 4 10L4 14.5442C4 17.7892 4 19.4117 4.88607 20.5107C5.06508 20.7327 5.26731 20.9349 5.48933 21.1139C6.58831 22 8.21082 22 11.4558 22C12.1614 22 12.5141 22 12.8372 21.886C12.9044 21.8623 12.9702 21.835 13.0345 21.8043C13.3436 21.6564 13.593 21.407 14.0919 20.9081L18.8284 16.1716C19.4065 15.5935 19.6955 15.3045 19.8478 14.9369C20 14.5694 20 14.1606 20 13.3431Z&#x22; stroke=&#x22;currentColor&#x22; stroke-linecap=&#x22;round&#x22; stroke-linejoin=&#x22;round&#x22; stroke-width=&#x22;1.5&#x22;/></svg>" href="/es/features/interact">
    Haz clic, completa formularios y extrae contenido dinámico
  </Card>

  <Card title="Referencia del SDK de Node" icon="<svg xmlns=&#x22;http://www.w3.org/2000/svg&#x22; viewBox=&#x22;0 0 24 24&#x22; fill=&#x22;none&#x22;><path d=&#x22;M8 7L16 7&#x22; stroke=&#x22;currentColor&#x22; stroke-linecap=&#x22;round&#x22; stroke-linejoin=&#x22;round&#x22; stroke-width=&#x22;1.5&#x22;/><path d=&#x22;M8 11L12 11&#x22; stroke=&#x22;currentColor&#x22; stroke-linecap=&#x22;round&#x22; stroke-linejoin=&#x22;round&#x22; stroke-width=&#x22;1.5&#x22;/><path d=&#x22;M13 21.5V21C13 18.1716 13 16.7574 13.8787 15.8787C14.7574 15 16.1716 15 19 15H19.5M20 13.3431V10C20 6.22876 20 4.34315 18.8284 3.17157C17.6569 2 15.7712 2 12 2C8.22877 2 6.34315 2 5.17157 3.17157C4 4.34314 4 6.22876 4 10L4 14.5442C4 17.7892 4 19.4117 4.88607 20.5107C5.06508 20.7327 5.26731 20.9349 5.48933 21.1139C6.58831 22 8.21082 22 11.4558 22C12.1614 22 12.5141 22 12.8372 21.886C12.9044 21.8623 12.9702 21.835 13.0345 21.8043C13.3436 21.6564 13.593 21.407 14.0919 20.9081L18.8284 16.1716C19.4065 15.5935 19.6955 15.3045 19.8478 14.9369C20 14.5694 20 14.1606 20 13.3431Z&#x22; stroke=&#x22;currentColor&#x22; stroke-linecap=&#x22;round&#x22; stroke-linejoin=&#x22;round&#x22; stroke-width=&#x22;1.5&#x22;/></svg>" href="/es/sdks/node">
    Referencia completa del SDK con crawl, mapeo, extracción por lotes y más
  </Card>
</CardGroup>
