Simple billing that grows with you
Prepaid usage credits at a fixed rate — classify effort is Low 5, Medium 20, High 200 credits per call at the standard rate. Buy packs as you need them, or start a monthly credit subscription.
Credits
Simple prepaid usage
0.10p/credit
Buy credit packs or a monthly credit subscription from £75 (75,000 credits). Classify effort: Low 5, Medium 20, High 200 credits per call; crawls are 5 credits at the standard rate without a Firecrawl API key. Up to 100 concurrent category drains per org (3 per project). Add your own Firecrawl key on a project to skip those crawl debits.
Estimate usage credits
Slide the credit spend to see how many credits you get at 0.10p/credit, plus a rough classification estimate.
* Credit packs exclude VAT. Unit estimates are approximate.
£75credits
≈ 75,000 credits at 0.10p/credit · classify Low 5, Medium 20, High 200 · 5 credits per crawl without a Firecrawl API key
Credits
75,000
Low classifications
~15,000
Trusted by
Billing
Transparent charges
Fixed credit rate
Every credit costs 0.10p. Classify effort: Low 5, Medium 20, High 200 credits per call; crawls are 5 credits at the standard 5× rate (without a Firecrawl API key). Up to 100 concurrent category drains per org (3 per project).
Packs or monthly
Buy credit packs as you need them, or start a monthly credit subscription for predictable top-ups. No platform tier fee.
Optional BYO Firecrawl
Without a key, each crawl costs 5 credits at the standard rate. Add your Firecrawl API key on any project to skip those debits for crawl and host discovery. Topic discovery and classify still use platform credits.
Pricing FAQs
How does credit pricing work?
Credits cost a fixed 0.10p each. At the standard 5× rate, classify effort costs Low 5, Medium 20, High 200 credits per call, and each crawl is 5 credits (1 × 5) without a Firecrawl API key. Buy packs or a monthly credit subscription from £75. Example: £75 buys 75,000 credits (roughly 15,000 Low classifications). Figures are guides only.
What does each action cost?
Standard org markup is 5× on vendor bases (some orgs bill at 1× / at cost). Classify Low: 1 base × markup → 5 credits. Classify Medium: 4 base × markup → 20 credits. Classify High: 40 base × markup → 200 credits. Crawl (platform Firecrawl key): 1 base × markup → 5 credits at 5×. Topic hygiene run: 10 base × markup → 50 credits at 5×. Coverage remediation run: 50 base × markup → 250 credits at 5×. Search-term generation (topic discovery / regen): 1 credit per term, fixed — not multiplied by markup.
Are there throughput limits?
Yes. Organisations can run up to 100 concurrent category drain steps, and each project is capped at 3.
Can I try Stark Crawl for free?
Yes! Sign up and start a free trial with no credit card required. Configure projects, run discovery, and test extraction — then add credits when you are ready to scale.
What happens if I run out of credits?
Crawls and discovery pause when credits are exhausted. Buy another pack or start a monthly credit subscription anytime. Topic discovery and listing classify always need a credit balance.
Can I bring my own Firecrawl API key?
Yes. Without a key, each crawl costs 5 credits at the standard rate. Add an optional Firecrawl API key on any project to skip platform Firecrawl debits for crawl and host discovery. Topic discovery and listing classify still use platform credits.
Can I change credit pack size later?
Yes. Buy packs or adjust monthly credit subscriptions from Billing in the app anytime.
Is there a discount for charities or startups?
Yes, we offer discounted rates for registered charities and early-stage startups. Get in touch via our contact page to discuss your situation.