Describe an app.
Get real code.

1// POST /api/summarize — real AI, your key
2app.post("/api/summarize", async (req, res) => {
3  if (!process.env.ANTHROPIC_API_KEY)
4    return res.status(503).json({ error: "Add your API key" });
5
6  const r = await fetch("https://api.anthropic.com/v1/messages", {
7    method: "POST",
8    headers: { "x-api-key": process.env.ANTHROPIC_API_KEY },
9    body: JSON.stringify({
10      model: "claude-haiku-4-5",
11      messages: [{ role: "user", content: req.body.text }],
12    }),
13  });
14  const data = await r.json();
15  res.json({ summary: data.content[0].text });
16});