Firecrawl vs Spider
Choosing between Firecrawl and Spider? Both are scraping & crawling providers you can call through a single Auxiliar key, so the honest answer is usually “use whichever wins the job in front of you” — and with one key and one bill, you don’t have to commit to either.
We ran both on the identical curator-fleet corpus. Firecrawl leads on scraping a page to clean, LLM-ready content (9.81 vs 6.73). On the headline test (scraping a page to clean, LLM-ready content), Firecrawl scored 9.81/10 (anti-bot bypass 100%) versus 6.73/10 for Spider. The full measured breakdown is below.
Measured, side by side
Composite score /10 on each shared capability, from the Auxiliar curator fleet — same corpus for both.
| Capability | Firecrawl | Spider | Winner |
|---|---|---|---|
| ScrapeAnti-bot bypass | 9.81100% · #1/10 | 6.7350% · #9/10 | Firecrawl |
| ScreenshotValid image | 9.51.00 · #1/8 | 5.030.50 · #7/8 | Firecrawl |
| Parse · PDF/docText accuracy | 8.820.91 · #1/3 | 6.990.60 · #3/3 | Firecrawl |
| CrawlCoverage | 8.610.92 · #1/5 | 8.540.77 · #2/5 | Firecrawl |
| Act · declarativeTask success | 7.410.80 · #3/6 | 1.50.00 · #6/6 | Firecrawl |
Beyond the overlap
Capabilities each provider scored on that the other doesn't cover.
Firecrawl also does
- Extract · AI/schema
- Watch
- Act · NL-agent
Spider also does
Nothing extra in the tested set.
Firecrawl — choose if
You want the highest-quality scrape/markdown and a single surface for scrape, crawl, extract and screenshot.
Spider — choose if
You want fast crawling, clean markdown and transparent per-page pricing (anti-multiplier).
Firecrawl — avoid if
You're cost-sensitive on hard targets — stealth + JSON stack ~5–9× the base credit.
Spider — avoid if
You need declarative actions (clicks no-op live) or forecastable usage-based billing.
One key. Every provider on this page.
Stop juggling signups and invoices. One Auxiliar API key calls all of them — upstream keys injected server-side, usage billed to a single balance. Swap the base URL and go.
curl https://api.auxiliar.ai/serper/search \ -H "Authorization: Bearer $AUXILIAR_API_KEY" \ -H "Content-Type: application/json" \ -d '{"q": "latest ai agent news"}'