Screen every wallet before the transaction leaves.

QARS scores a wallet's AML/CFT risk before a transfer is broadcast, while it can still be stopped.

Pass Biometric verification required Pre-mempool block
15blockchain networks
13risk dimensions
3gate decisions
5sanctions lists
EthereumETHBitcoinBTCTronTRXSolanaSOLPolygonPOLBNB Smart ChainBNBArbitrumARBOptimismOPBaseETHAvalancheAVAXzkSync EraZKLineaLINEAScrollSCRMantleMNTBlastBLAST
Live demo

Screen any wallet. Right now.

Paste an address from any of 15 networks. QARS checks five sanctions lists and scores 13 risk dimensions on live on-chain data, then returns its gate decision in seconds. No account needed.

Or press the button to screen the example shown.

  1. Validate address
  2. Fetch on-chain data
  3. Check 5 sanctions lists
  4. Score 13 dimensions
  5. Gate decision
EthereumBitcoinTronSolanaPolygonBNB Smart ChainArbitrumOptimismBaseAvalanchezkSync EraLineaScrollMantleBlast
Why before broadcast

A settled transfer can be traced. It can no longer be stopped.

  1. 1
    Withdrawal request
    A customer asks to send funds.
  2. 2
    QARS screening
    Risk scored, decision issued.
  3. 3
    Broadcast
    Only cleared transfers go out.
  4. 4
    Settlement
    Funds have moved for good.
  5. 5
    Investigation
    Traceable, no longer stoppable.
How it works

One API call before the signing step.

  1. 1

    Send the wallet

    Address and network, before signing.

  2. 2

    QARS scores the risk

    Five sanctions lists, thirteen dimensions.

  3. 3

    Act on the decision

    With the signals and rules behind it.

Capabilities

Everything a compliance team needs at the gate.

Pre-mempool gate

Pass, verify or block, decided before broadcast.

13 risk dimensions

One score from 0 to 10, one clear tier.

Wallet rotation resistance

A fresh wallet does not mean a clean record.

Forensic records

Hash-chained and exportable as PDF.

SAR and STR drafts

Pre-filled for five jurisdictions.

Travel Rule

IVMS101 checks between service providers.

Explainability

Every decision comes with its reasons.

Scores, signals and the rules that fired, ready to show auditors and supervisors.

Destination wallet, Ethereum
0x8576acc5...353c
Pre-mempool block
8.70Risk score of 10
HighRisk tier
OFAC SDNSanctions list match
OFAC sanctions9.5
Mixer proximity8.0
Sanctions cluster proximity7.0
Velocity and structuring6.5
Value anomaly4.0
Travel Rule completeness3.0
Example output. Six of the thirteen dimensions are shown.
Regulation

Built around the rules you report against.

GlobalFATF R.15 and R.16EUTransfer of Funds RegulationEUMiCAEUAMLD and AML RegulationUSOFAC sanctionsUSFinCEN SAR rulesUKProceeds of Crime ActDEGwG § 43USGENIUS Act

QARS supports these obligations. It does not by itself make an institution compliant.

Stablecoins

Stablecoins are payment rails now. QARS screens them at the gate.

USDTTetherUSDCCircleEURCCircleEURSStasisEURRRevolutUSDTTetherUSDCCircleEURCCircleEURSStasisEURRRevolut
EthereumTronSolanaBaseArbitrumPolygonBNB Smart ChainEthereumTronSolanaBaseArbitrumPolygonBNB Smart Chain
Same gateAs for native assets.
Travel Rule scoredNo minimum threshold in the EU.
Bridges and mixersTraced across all 15 networks.
Coverage

15 networks. 5 sanctions lists.

Lists refreshed daily, every feed monitored.

Sanctions lists

  • OFAC SDN, United States
  • EU Consolidated List
  • UK Sanctions List
  • SECO, Switzerland
  • UN Security Council

Networks

  • EthereumETH
  • BitcoinBTC
  • TronTRX
  • SolanaSOL
  • PolygonPOL
  • BNB Smart ChainBNB
  • ArbitrumARB
  • OptimismOP
  • BaseETH
  • AvalancheAVAX
  • zkSync EraZK
  • LineaLINEA
  • ScrollSCR
  • MantleMNT
  • BlastBLAST
Recognition

Recognised and supported in Germany.

Member of Bundesblock, Blockchain Bundesverband e.V.
Bundesblock memberCategory 1 member of the German blockchain association.
INVEST, Zuschuss für Wagniskapital, BAFA
INVEST eligibleConfirmed eligible for the BAFA INVEST venture capital grant.
Finovate Awards 2026 finalist
Finovate 2026 finalistShortlisted for Innovator of the Year.
Patent pending DE 10 2026 001 732.7 Research B2C 2026 and ICICPE 2026 papers Policy FATF R.16 and EU MiCA consultations

Test QARS on your own addresses.

Pilots for custodians, exchanges and stablecoin issuers. Under a data processing agreement, we screen a sample of addresses you choose and walk your compliance team through every result.

Request a pilot
QCA assistantAnswers to common questions