Prometheus by Firecrawl - A Forward Deployed Agent for web data.
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An experimental Forward Deployed Agent for web data from Firecrawl. Describe the web data you need and it writes Firecrawl code to collect it. Run it yourself or let us host and automatically maintain it as pages change.
Replies
Firecrawl
@ericciarla The 'run it yourself vs let us host & auto-maintain it' split is the clever part. Where does the aha actually land? First time it writes working scrape code, or first time a page changes and it self-heals without anyone touching it? Feels like that self-heal moment is the real hook
The automatic maintenance angle is clever. Having the agent detect and regenerate scraping code as page structures shift solves one of the biggest pain points in web data pipelines. We've spent significant time dealing with brittle scrapers that break silently and cause data quality issues downstream. How does Prometheus decide when a structural change warrants code regeneration vs. treating it as a transient anomaly?
Firecrawl
@anand_thakkar1 Yes that is my favorite part! We decide based on the historical differences in data
@anand_thakkar1 Would love to test one of your more brittle scraping processes on Prometheus!
The maintenance part is what makes this useful. Writing a scraper once is easy enough, but keeping it working as pages change is where most web data projects quietly become a time sink.
Firecrawl
@farrukh_butt1 100%
This is neat. When page structures change, does Prometheus auto-detect the break or wait for you to flag it?
Firecrawl
@dhiraj_patel5 it automatically flags and fixes!
the run it yourself or let us host split is interesting because those are pretty different value propositions. running it yourself means you're still responsible for maintenance even if the agent writes the code. hosting means you're trusting Firecrawl to maintain the extraction logic as sites change, which is a significant operational commitment to make on someone else's behalf. curious what the SLA looks like for hosted maintenance and what happens when a site change breaks extraction and you need the data today
Firecrawl
@ansari_adin good points. this is just an experiment but an SLA may come in the future!
Mailwarm
If you host it, can you see exactly what code it generated and edit it when you need to?
Firecrawl
@thamibenjelloun Yes that is correct!
@thamibenjelloun diff comparison after auto-heal incoming!
Web scraping for agents is one of those problems that sounds simple until you actually try it. Curious how it handles sites with heavy JS rendering or login walls — that's usually where these tools fall apart. Will test it on a few of my usual sources.
@josedamian thats what Firecrawl does best!
Stumbled across this morning and let me tell you in just an hour of using it I have extracted immense value when it comes to building websites for local businesses and extracting specific components. I have been using the Firecrawl plugin in Claude Code for about 3 months now and to have a streamlined way to use it separately has been very helpful so far, cheers lads.
Prometheus generating the collector code is cool, but the part I’d love to see is whether it also generates validation checks with it. For example, after it samples the data, can it create simple assertions like required fields, expected value ranges, stable selectors, or row counts so teams can catch bad runs before the data reaches downstream systems?
The forward-deployed agent framing is useful for web data, because the hard part is usually maintaining extraction when pages change. Curious how you decide what should become a reusable workflow versus a one-off crawl for a customer?