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lovable-integrationsNative Shared Connector

How to Integrate Lovable with Firecrawl

Firecrawl is a native Lovable connector that lets your app scrape any website and extract structured data using AI — no code required to set up. Activate it in Settings → Connectors → Shared connectors, add your Firecrawl API key to Cloud Secrets, then describe what you want to scrape in Lovable's chat. The AI auto-generates all Edge Functions and wiring.

What you'll learn

  • How to activate the Firecrawl connector from Settings → Connectors in Lovable
  • How to store your Firecrawl API key securely in Cloud Secrets so it never appears in frontend code
  • How to prompt Lovable to scrape a specific URL and return structured data to your app
  • How to use Firecrawl's crawl mode to pull content from an entire site, not just one page
  • How to display scraped data in a React component generated automatically by Lovable's AI
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Beginner14 min read10 minutesCMSMarch 2026RapidDev Engineering Team
TL;DR

Firecrawl is a native Lovable connector that lets your app scrape any website and extract structured data using AI — no code required to set up. Activate it in Settings → Connectors → Shared connectors, add your Firecrawl API key to Cloud Secrets, then describe what you want to scrape in Lovable's chat. The AI auto-generates all Edge Functions and wiring.

Pull live web content into your Lovable app with Firecrawl

Most apps that need external content face a choice: manually copy-paste data, pay for a managed CMS, or write complex scraping code. Firecrawl removes all three options from the equation. It is an AI-powered scraping service that converts any public webpage — a competitor's pricing page, a news site, a property listing, a product catalog — into clean JSON your app can immediately work with. Because it is a native Lovable connector, the AI already knows how Firecrawl works and can write correct scraping logic from a single plain-English prompt.

The integration is meaningful for non-technical founders because it opens up use cases that previously required a developer. Want to build a price comparison tool that checks three competitors' websites every morning? A research dashboard that surfaces the latest industry news? A lead generation app that pulls contact information from public directories? All of these are now describable in Lovable's chat window. Firecrawl handles JavaScript-rendered pages, handles pagination, and returns data in a consistent format regardless of the source site's HTML structure.

Unlike Contentful, which delivers content you have already uploaded and managed inside a CMS, Firecrawl scrapes content from the live web that you do not own or manage. The two tools solve fundamentally different problems: Contentful is the right choice when you are publishing your own structured content; Firecrawl is the right choice when you need to ingest content from somewhere else on the internet. Many apps use both — Contentful for editorial content, Firecrawl for competitive intelligence or real-time data feeds.

Integration method

Native Shared Connector

Firecrawl is one of Lovable's 17 shared connectors — activated once in Settings → Connectors, it gives Lovable's AI full understanding of the Firecrawl API so it can generate correct scraping logic from plain-English prompts.

Prerequisites

  • A Lovable account (free tier is sufficient to connect the Firecrawl connector)
  • A Firecrawl account at firecrawl.dev — free tier includes 500 credits, enough to get started
  • Your Firecrawl API key from the Firecrawl dashboard (Settings → API Keys)
  • A Lovable project open and ready to edit
  • Basic familiarity with Lovable's chat interface for sending prompts

Step-by-step guide

1

Activate the Firecrawl connector in Settings → Connectors

Open your Lovable project and navigate to Settings in the left sidebar. Select the Connectors tab, then scroll down to the Shared connectors section. You will see a grid of all 17 available connectors — find the Firecrawl tile and click it to open the connector details panel. The panel explains what Firecrawl does and lists what the connector enables in your project. Click the 'Connect' or 'Enable' button to activate it for your workspace. Shared connectors are workspace-level, which means activating Firecrawl here makes it available to every project in your workspace — you do not need to repeat this step for each new project. Once activated, the Firecrawl tile should show a green connected indicator. This tells Lovable's AI that Firecrawl is available and gives it full context about the Firecrawl API — including which endpoints to use, what parameters they accept, and how to handle the responses. From this point forward, you can describe scraping tasks in plain English and the AI will generate accurate, working code without you needing to know any Firecrawl API details.

Expected result: The Firecrawl tile in Settings → Connectors shows a green connected status indicator. No error messages appear.

2

Add your Firecrawl API key to Cloud Secrets

With the connector activated, Lovable needs your Firecrawl API key to authenticate requests. You must store this in Cloud Secrets — never paste it directly into the chat or into your code. Lovable blocks approximately 1,200 hardcoded API keys per day, and on the free tier your chat history is publicly visible, so any key pasted into chat could be exposed immediately. To add the secret, click the '+' icon next to the Preview panel at the top of the Lovable editor. This opens the Cloud tab. Select Secrets from the Cloud tab menu. Click 'Add new secret' and enter the following: Key name: FIRECRAWL_API_KEY Value: your API key from the Firecrawl dashboard (it starts with 'fc-') Click Save. The secret is now encrypted and stored server-side — it is only accessible from Edge Functions running in Lovable Cloud, never from the browser or your frontend React code. To retrieve your API key, log in to firecrawl.dev, go to Settings → API Keys, and copy the key shown. If you have not yet created a key, click 'Create new key', give it a descriptive name like 'Lovable production', and copy the value before closing the modal (Firecrawl only shows the full key once at creation time).

Expected result: FIRECRAWL_API_KEY appears in your Cloud Secrets list with a masked value. No API key is visible in your project code or chat history.

3

Prompt Lovable to scrape a single URL and display the result

Now that the connector is active and your API key is stored, you can describe a scraping task in Lovable's chat. The AI has full knowledge of the Firecrawl API and will automatically generate the Edge Function, wire it to your frontend, and create a UI component to display the result — all from a single prompt. Start with a focused, single-page scrape to verify the integration is working. In Lovable's chat panel, describe the source URL, the data you want extracted, and where you want it displayed in the app. Be specific about the output format — asking for 'a list of strings' is less reliable than asking for 'a JSON object with title, price, and description fields'. Lovable will generate an Edge Function that calls the Firecrawl /scrape endpoint with your FIRECRAWL_API_KEY secret, pass the URL and extraction instructions, and return the structured data to your React frontend. The frontend component will be wired to call the Edge Function when the page loads or when a user clicks a button, depending on how you describe the interaction. After the AI generates the code and you see the preview update, test the scrape by interacting with the component. If the data appears correctly, the integration is working end-to-end.

Lovable Prompt

Add a section to this page that scrapes https://news.ycombinator.com and displays the top 10 story titles and links as a styled list. Use the Firecrawl connector to fetch the data via an Edge Function. Refresh the data each time the user clicks a 'Refresh' button. Display a loading spinner while the scrape is running.

Paste this in Lovable chat

Expected result: A new section appears in the app preview with a Refresh button. Clicking it triggers a scrape, shows a loading spinner, then displays the extracted story titles and links from the target URL.

4

Use Firecrawl's crawl mode to extract content from an entire site

Single-page scraping covers most use cases, but sometimes you need content from across an entire website — for example, crawling all blog posts on a competitor's site, or indexing every product page in a catalog. Firecrawl's crawl mode handles this automatically: you give it a starting URL and it discovers and scrapes all linked pages within the same domain. Crawl jobs are slower than single-page scrapes because they process many pages sequentially. This means you should not run crawls synchronously on page load — they can take anywhere from a few seconds to several minutes depending on the site size. The correct pattern is to trigger the crawl in the background, store results in your Lovable Cloud database as they arrive, and display them progressively in the UI. Describe this pattern clearly in your Lovable prompt and the AI will set up the correct async architecture: an Edge Function that starts the crawl job and returns a job ID, a second function that polls for job status and stores completed pages to the database, and a frontend component that queries the database and updates in real time using Supabase's built-in realtime subscriptions. Set a reasonable page limit in your prompt — asking Firecrawl to crawl an entire large website without a limit can consume your monthly credits very quickly. For most use cases, a limit of 10–50 pages is a good starting point.

Lovable Prompt

Create a 'Site Crawler' feature. The user enters a URL and a page limit (default 20). When they click 'Start Crawl', call the Firecrawl crawl endpoint via an Edge Function using the FIRECRAWL_API_KEY secret. Store each scraped page's URL, title, and main body text in a new Supabase table called scraped_pages. Display results in a table that updates in real time as pages are added. Show the crawl progress as a count of pages completed.

Paste this in Lovable chat

Expected result: A crawler UI appears with a URL input and page limit selector. Starting a crawl populates the scraped_pages table in real time and the results table updates as each page is processed.

5

Extract structured data using Firecrawl's LLM-powered extraction

Beyond pulling raw page content, Firecrawl supports LLM-based structured data extraction — you define a JSON schema describing the fields you want, and Firecrawl uses AI to identify and extract those specific values from the page, regardless of where they appear in the HTML. This is the most powerful Firecrawl feature for non-technical founders because it means you do not need to write any CSS selectors, XPath, or HTML parsing logic. You simply describe the fields you want in plain English — 'company name', 'founding year', 'number of employees', 'headquarters city' — and Firecrawl returns a clean JSON object with those values filled in from whatever public information appears on the page. This works well for use cases like extracting job listings from company careers pages, pulling product specifications from manufacturer websites, building contact databases from public directory pages, or monitoring competitor pricing pages. The LLM extraction is more reliable than HTML-based scraping because it handles page redesigns gracefully — as long as the data is present on the page, it will be found even if the layout changes. When describing this to Lovable, specify the exact field names you want in your output schema. The AI will pass this schema to Firecrawl's extraction endpoint and handle mapping the response into your app's data model. For complex cases, RapidDev's team can help configure multi-source extraction pipelines that combine Firecrawl with your Supabase database and Edge Function logic.

Lovable Prompt

Add a 'Company Research' tool to this app. The user enters a company website URL. When they click 'Extract', call the Firecrawl scrape endpoint with LLM extraction enabled. Use this schema: { company_name: string, description: string, founding_year: number, employee_count: string, headquarters: string, key_products: string[] }. Display the extracted data in a clean card layout. Store each extraction in a Supabase table called company_profiles so results are saved for later reference.

Paste this in Lovable chat

Expected result: The Company Research tool extracts structured company data from any URL entered and displays it in a formatted card. Extractions are saved to the company_profiles table and persist between sessions.

Common use cases

Prompt Lovable to scrape a single URL and display the result

Use Firecrawl with Lovable to prompt lovable to scrape a single url and display the result. This is one of the most common use cases when integrating Firecrawl into your Lovable application.

Lovable Prompt

Add a section to this page that scrapes https://news.ycombinator.com and displays the top 10 story titles and links as a styled list. Use the Firecrawl connector to fetch the data via an Edge Function. Refresh the data each time the user clicks a 'Refresh' button. Display a loading spinner while the scrape is running.

Copy this prompt to try it in Lovable

Use Firecrawl's crawl mode to extract content from an entire site

Take your Firecrawl integration further by use firecrawl's crawl mode to extract content from an entire site. This builds on the basic setup to create a more complete experience.

Lovable Prompt

Create a 'Site Crawler' feature. The user enters a URL and a page limit (default 20). When they click 'Start Crawl', call the Firecrawl crawl endpoint via an Edge Function using the FIRECRAWL_API_KEY secret. Store each scraped page's URL, title, and main body text in a new Supabase table called scraped_pages. Display results in a table that updates in real time as pages are added. Show the crawl progress as a count of pages completed.

Copy this prompt to try it in Lovable

Extract structured data using Firecrawl's LLM-powered extraction

Prepare your Firecrawl integration for production by extract structured data using firecrawl's llm-powered extraction. Ensures your integration works reliably for real users.

Lovable Prompt

Add a 'Company Research' tool to this app. The user enters a company website URL. When they click 'Extract', call the Firecrawl scrape endpoint with LLM extraction enabled. Use this schema: { company_name: string, description: string, founding_year: number, employee_count: string, headquarters: string, key_products: string[] }. Display the extracted data in a clean card layout. Store each extraction in a Supabase table called company_profiles so results are saved for later reference.

Copy this prompt to try it in Lovable

Troubleshooting

Edge Function returns 'Secret FIRECRAWL_API_KEY not found' error

Cause: The secret name in Cloud Secrets does not exactly match the name used in the Edge Function code. Secret names are case-sensitive, so 'Firecrawl_API_Key' and 'FIRECRAWL_API_KEY' are treated as different values.

Solution: Open the Cloud tab → Secrets and confirm the secret is named exactly FIRECRAWL_API_KEY (all caps, underscore separators, no spaces). If the name is different, delete the existing secret and recreate it with the correct name. Then ask Lovable to regenerate the Edge Function — it will use the correct Deno.env.get('FIRECRAWL_API_KEY') reference automatically.

Scrape returns empty data or a 'blocked by robots.txt' error

Cause: Some websites actively block scraping bots either via robots.txt rules or by detecting and blocking headless browser requests. Firecrawl respects robots.txt by default, so any URL disallowed in a site's robots.txt file will return an empty or error response.

Solution: Check whether the target site has a robots.txt file at its root (e.g., https://example.com/robots.txt) and whether it disallows scraping. If scraping is disallowed, you will need to find an alternative data source — an official API, an RSS feed, or a public data export. For sites that block headless browsers but do not explicitly block robots.txt, Firecrawl's stealth mode can be enabled by adding the relevant option to your extraction prompt.

Crawl job starts but never completes and no results appear in the database

Cause: Crawl jobs are asynchronous and the Edge Function polling logic may not be running continuously. If the Edge Function times out before the crawl finishes, or if the polling interval is too short, results will not be written to the database.

Solution: Ask Lovable to update the architecture to use Supabase Edge Function cron jobs or a webhook callback from Firecrawl instead of polling. Firecrawl can call a webhook URL when the crawl is complete — provide your Edge Function's URL as the webhook target, and Firecrawl will POST the results to it when finished. This is more reliable than polling for crawls that take longer than 30 seconds.

Best practices

  • Always store your Firecrawl API key in Cloud Secrets as FIRECRAWL_API_KEY — never paste it into the chat or into component code, even temporarily.
  • Set explicit page limits on all crawl jobs. Starting with a limit of 10–20 pages lets you validate the integration before running larger, credit-consuming jobs.
  • Use LLM-based structured extraction (with a defined JSON schema) instead of returning raw HTML when you know exactly which fields you need — it is more reliable and easier to work with in your app's data layer.
  • Cache scrape results in your Supabase database rather than re-scraping the same URLs on every page load. Most web content does not change by the minute, and caching dramatically reduces Firecrawl credit usage.
  • For crawl jobs, use Firecrawl's webhook callback to notify your app when the job completes rather than polling on a timer. This avoids Edge Function timeouts and is more efficient.
  • Check the target website's robots.txt and terms of service before building a production feature that depends on scraping it. Sites that block scraping or change their structure frequently will break your integration.
  • When prompting Lovable for structured extraction, provide specific, unambiguous field names in your schema. Vague field names like 'info' or 'data' produce inconsistent results; precise names like 'annual_revenue_usd' or 'product_launch_date' guide the AI extraction reliably.
  • Use Firecrawl's scrape mode for single-page targeted extraction and reserve crawl mode for cases where you genuinely need to index multiple pages — crawls consume significantly more credits per job.

Alternatives

Frequently asked questions

Is Firecrawl free to use with Lovable?

Firecrawl offers a free tier that includes 500 credits per month — enough to scrape hundreds of pages and get your integration working. Paid plans start at $16 per month for 3,000 credits. Lovable itself does not charge extra for using the Firecrawl connector beyond your normal Lovable credit usage for the AI prompts that set it up.

What is the difference between Firecrawl's scrape mode and crawl mode?

Scrape mode extracts content from a single URL you specify — it is fast (usually under 5 seconds) and uses 1 credit per page. Crawl mode starts at a URL, discovers all linked pages on the same domain, and scrapes each one automatically — it uses 1 credit per page discovered and can take several minutes for large sites. Use scrape mode when you know the exact page you need; use crawl mode when you need to index an entire site.

Can Firecrawl scrape pages that require JavaScript to render?

Yes. Firecrawl uses a headless browser internally, so it can render JavaScript-heavy pages including single-page applications built with React or Vue. This makes it more reliable than simple HTML fetchers for modern websites that load their content dynamically after the initial page request.

Will Firecrawl work on websites that require login?

Firecrawl can handle authenticated pages if you provide session cookies or authentication headers in the request configuration. However, this requires storing the target site's session credentials as secrets and configuring the Edge Function to pass them — it is an advanced use case. For most Lovable projects, Firecrawl is used against publicly accessible pages, which work out of the box with no authentication configuration needed.

How is Firecrawl different from using the Perplexity connector in Lovable?

Perplexity is an AI search engine — you ask it a question and it synthesizes an answer by searching the web. Firecrawl is a scraping tool — you give it a URL and it returns the actual structured content from that specific page. Use Perplexity when you want AI-generated research summaries; use Firecrawl when you need to extract and store specific data from known URLs.

Do I need to worry about the target site changing its layout breaking my scrape?

It depends on which Firecrawl extraction mode you use. HTML-based scraping (which targets specific CSS selectors) will break if the site redesigns its layout. LLM-based structured extraction is much more resilient — because it uses AI to find the data rather than looking for specific HTML elements, it continues working correctly after most layout changes as long as the underlying data is still present on the page.

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