Do I need a contract to start?
No. The free Risk Scout tier needs no credit card and no contract. The Pilot is a fixed 30-day engagement without auto-renewal. Pro and Enterprise are annual agreements scoped to your organisation, and public-sector engagements are agreed under NDA.
How is pricing determined?
Beyond the free tier, every plan is scoped to your organisation, your analysis volume and your compliance obligations, so we do not publish flat rates. Tell us about your use case and we will prepare a quote.
Can compliance documents be part of a contract?
Yes. PDF forensic reports, gate certificates and SAR/STR drafts can be included as contract items for the Pilot, Pro, Enterprise and public-sector plans.
Can I try QARS before signing up?
Yes. The Try QARS page screens any wallet on live on-chain data without an account, with a limited number of free screenings per hour. Production use, full batches and complete reports require your own API key.
Which networks are supported?
15 networks: Ethereum, Arbitrum, Polygon, BNB Smart Chain, Base, Optimism, Avalanche, zkSync Era, Linea, Scroll, Mantle, Blast, Tron, Bitcoin and Solana.
What happens when a wallet is flagged?
QARS returns one of three gate decisions rather than a single automatic block: pass, biometric verification required, or pre-mempool block. Medium-risk activity can require additional verification instead of a refusal, so legitimate customers are not cut off by one conservative signal.
Which regulatory frameworks does QARS support?
QARS is built to support obligations under FATF Recommendations 10, 15 and 16, the EU Transfer of Funds Regulation, MiCA, and AML and sanctions rules in the EU, the UK and the US. Every decision documents the signals and rules behind it. QCA outputs support, and do not replace, the judgement of your compliance team.