Supabase Edge Functions

Use Firecrawl with Supabase Edge Functions to search, scrape, and interact with web data at the edge.

Prerequisites

• Supabase project with CLI (supabase init)
• A Firecrawl API key — get one free

Setup

supabase functions new firecrawl-search
supabase functions new firecrawl-scrape
supabase functions new firecrawl-interact

Set the secret:

supabase secrets set FIRECRAWL_API_KEY=fc-YOUR-API-KEY

Search the web

Edit supabase/functions/firecrawl-search/index.ts:

import Firecrawl from "npm:@mendable/firecrawl-js";

const firecrawl = new Firecrawl({
  apiKey: Deno.env.get("FIRECRAWL_API_KEY"),
});

Deno.serve(async (req) => {
  const { query } = await req.json();
  const results = await firecrawl.search(query, { limit: 5 });

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

Scrape a page

Edit supabase/functions/firecrawl-scrape/index.ts:

import Firecrawl from "npm:@mendable/firecrawl-js";

const firecrawl = new Firecrawl({
  apiKey: Deno.env.get("FIRECRAWL_API_KEY"),
});

Deno.serve(async (req) => {
  const { url } = await req.json();
  const result = await firecrawl.scrape(url);

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

Interact with a page

Edit supabase/functions/firecrawl-interact/index.ts:

import Firecrawl from "npm:@mendable/firecrawl-js";

const firecrawl = new Firecrawl({
  apiKey: Deno.env.get("FIRECRAWL_API_KEY"),
});

Deno.serve(async (_req) => {
  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",
  });
  console.log(response.output);

  await firecrawl.stopInteraction(scrapeId);

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

Deploy

supabase functions deploy firecrawl-search
supabase functions deploy firecrawl-scrape
supabase functions deploy firecrawl-interact

Test it

curl -X POST https://<project-ref>.supabase.co/functions/v1/firecrawl-search \
  -H "Authorization: Bearer <ANON_KEY>" \
  -H "Content-Type: application/json" \
  -d '{"query": "firecrawl web scraping"}'

Next steps

Search docs

Search the web and get full page content

Scrape docs

All scrape options including formats, actions, and proxies

Interact docs

Click, fill forms, and extract dynamic content

Node SDK reference

Full SDK reference with crawl, map, batch scrape, and more