# Vercel Functions (/ja/quickstarts/vercel-functions)

<!-- agent-signals: reading_time_min: 4 · est_tokens: 1958 · updated: 2026-07-30 -->
Related: [Node.js](/ja/quickstarts/nodejs.md), [Next.js](/ja/quickstarts/nextjs.md), [Express](/ja/quickstarts/express.md), [NestJS](/ja/quickstarts/nestjs.md), [Fastify](/ja/quickstarts/fastify.md), [Hono](/ja/quickstarts/hono.md)

<div id="prerequisites">
  ## 前提条件 [#前提条件]
</div>

* Vercelプロジェクト (Next.js、SvelteKit、Nuxt、またはスタンドアロン)
* Firecrawl APIキー — [無料で取得](https://www.firecrawl.dev/app/api-keys)

<div id="setup">
  ## セットアップ [#セットアップ]
</div>

```bash
npm install firecrawl
```

`FIRECRAWL_API_KEY` を、Vercel プロジェクトの設定、またはローカル開発用の `.env.local` に環境変数として追加します：

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

<div id="search-the-web">
  ## Web を検索する [#web-を検索する]
</div>

`api/search.ts` (Next.js の場合は `app/api/search/route.ts`) を作成します：

```typescript
import { Firecrawl } from "firecrawl";

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

export async function POST(request: Request) {
  const { query } = await request.json();
  const results = await firecrawl.search(query, { limit: 5 });

  return new Response(JSON.stringify(results), {
    headers: { "Content-Type": "application/json" },
  });
}
```

<div id="scrape-a-page">
  ## ページをスクレイピング [#ページをスクレイピング]
</div>

`api/scrape.ts` (Next.js の場合は `app/api/scrape/route.ts`) を作成します。

```typescript
import { Firecrawl } from "firecrawl";

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

export async function POST(request: Request) {
  const { url } = await request.json();
  const result = await firecrawl.scrape(url);

  return new Response(JSON.stringify(result), {
    headers: { "Content-Type": "application/json" },
  });
}
```

<div id="interact-with-a-page">
  ## ページに対してInteractする [#ページに対してinteractする]
</div>

`api/interact.ts` (Next.js の場合は `app/api/interact/route.ts`) を作成します:

```typescript
import { Firecrawl } from "firecrawl";

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

export async function POST(request: Request) {
  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 new Response(JSON.stringify({ output: response.output }), {
    headers: { "Content-Type": "application/json" },
  });
}
```

<div id="deploy">
  ## デプロイ [#デプロイ]
</div>

```bash
vercel deploy
```

<div id="test-it">
  ## 試す [#試す]
</div>

```bash
curl -X POST https://your-project.vercel.app/api/search \
  -H "Content-Type: application/json" \
  -d '{"query": "firecrawl web scraping"}'
```

<Note>
  Vercel Functions のデフォルトのタイムアウトは、Hobby プランでは 10 秒、Pro では 60 秒です。大規模なクロールジョブには、代わりに webhook 対応の Firecrawl 非同期 API を使用してください。
</Note>

<div id="next-steps">
  ## 次のステップ [#次のステップ]
</div>

<CardGroup cols="2">
  <Card title="Search ドキュメント" 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="/ja/features/search">
    ウェブを検索し、ページ全文を取得
  </Card>

  <Card title="スクレイピング ドキュメント" 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="/ja/features/scrape">
    フォーマット、アクション、プロキシを含むスクレイピングのオプション
  </Card>

  <Card title="Interact ドキュメント" 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="/ja/features/interact">
    クリックやフォーム入力で動的コンテンツを抽出
  </Card>

  <Card title="Node SDK リファレンス" 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="/ja/sdks/node">
    クロール、map、バッチスクレイプなどを網羅した SDK リファレンス
  </Card>
</CardGroup>
