# Express (/quickstarts/express) Related: [Node.js](/quickstarts/nodejs.md), [Next.js](/quickstarts/nextjs.md), [NestJS](/quickstarts/nestjs.md), [Fastify](/quickstarts/fastify.md), [Hono](/quickstarts/hono.md), [Bun](/quickstarts/bun.md) ## Prerequisites [#prerequisites] * Node.js 18+ * A Firecrawl API key — [get one free](https://www.firecrawl.dev/app/api-keys) ## Setup [#setup] ```bash npm install express firecrawl ``` Add your API key to `.env`: ```bash FIRECRAWL_API_KEY=fc-YOUR-API-KEY ``` ## Search the web [#search-the-web] ```javascript import express from "express"; import { Firecrawl } from "firecrawl"; const app = express(); app.use(express.json()); const firecrawl = new Firecrawl({ apiKey: process.env.FIRECRAWL_API_KEY }); app.post("/search", async (req, res) => { try { const { query } = req.body; const results = await firecrawl.search(query, { limit: 5 }); res.json(results); } catch (error) { res.status(500).json({ error: error.message }); } }); app.listen(3000, () => console.log("Server running on port 3000")); ``` ## Scrape a page [#scrape-a-page] ```javascript app.post("/scrape", async (req, res) => { try { const { url } = req.body; const result = await firecrawl.scrape(url); res.json(result); } catch (error) { res.status(500).json({ error: error.message }); } }); ``` ## Interact with a page [#interact-with-a-page] Use interact to control a live browser session — click buttons, fill forms, and extract dynamic content. ```javascript app.post("/interact", async (req, res) => { try { const { url } = req.body; const result = await firecrawl.scrape(url, { 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); res.json({ output: response.output }); } catch (error) { res.status(500).json({ error: error.message }); } }); ``` ## Test it [#test-it] ```bash curl -X POST http://localhost:3000/search \ -H "Content-Type: application/json" \ -d '{"query": "firecrawl web scraping"}' ``` ## Next steps [#next-steps] All scrape options including formats, actions, and proxies Search the web and get full page content Click, fill forms, and extract dynamic content Full SDK reference with crawl, map, batch scrape, and more