Pre-Mempool Compliance Gate — QARS v1.0

The transaction is blocked
before it leaves the wallet. Every existing system looks backwards.

QCA intercepts high-risk transactions at eth_sendRawTransaction — before any block confirmation, before any mempool entry. Score any wallet below and see it happen live.

Book a 30-Min Demo →
MiCA Article 68 compliant
FATF Rec. 16 & 20
SAR/STR auto-generated
Court-admissible forensics
Patent pending
Scroll
<500ms
Gate decision latency
10
Risk dimensions scored
$38B+
Lost to blockchain fraud annually
72h
Avg. post-chain detection time
Live Gate — Try Any Ethereum Wallet

Score a wallet. Watch the gate decide.

Type any Ethereum address below or click a preset. The QCA engine returns a risk score, tier, gate decision, and full amplitude vector in real time.

Wallet Address
Quick Presets
Connecting to QCA engine…
◈

Enter a wallet address and click
Analyze & Gate
to see the QARS v1.0 score and
pre-mempool gate decision.

The Architecture

How the pre-mempool gate actually works.

Three steps. Under 500 milliseconds. No block confirmations needed.

01
Intercept at eth_sendRawTransaction
When a user signs and submits a transaction, the QCA SDK hooks the eth_sendRawTransaction call before it reaches any node. The signed transaction payload is passed to the QARS v1.0 scoring engine. The transaction has never touched the mempool.
0 block confirmations needed
02
QARS v1.0 Scores 10 Dimensions in Parallel
The quantum-amplitude risk model evaluates mixer proximity (22%), sanction cluster distance (22%), flash loan patterns, bridge interactions, bytecode similarity, and six more dimensions simultaneously. Quantum interference uplift is applied when correlated high-severity signals co-occur.
<500ms median latency
03
Gate Decision — Block, Biometric, or Pass
Score ≥ 6.5: transaction is blocked — never broadcast. Score 4.0–6.49: biometric re-authentication required. Score < 4.0: transaction passes to the mempool. Every decision is written to the ForensicLedger with a BLAKE2b-256 on-chain anchor. SAR/STR template generated automatically for HIGH decisions.
Court-admissible evidence
Who Uses QCA

Built for the teams building compliance.

⬡
VASPs & Crypto Exchanges
Integrate the gate as a single API call between transaction signing and broadcast. Satisfy MiCA Article 68 at the point of initiation — not post-settlement. Auto-generate SAR/STR filings for every HIGH risk intercept. Biometric commitment scheme requires no biometric database.
MiCA Art. 68 · FATF Rec. 16
◈
AML / KYT Analytics Providers
QCA operates pre-mempool — upstream of where on-chain analytics tools see any data. The two layers are complementary: QCA intercepts and blocks, your post-chain tools analyse and report. An integration partnership means your clients get coverage at every point in the transaction lifecycle.
Pre-mempool · Post-chain complement
⚖
Compliance Officers & MLROs
Every QCA intercept auto-generates a pre-filled SAR/STR filing template — 3 pages, FATF Rec. 20 structure, with the cryptographic evidence annex included. Batch screeners for portfolio risk. ForensicLedger hashes are court-admissible under ISO/IEC 27037:2012 and FRE 803(6).
SAR/STR auto-gen · Court-admissible
🔬
Law Enforcement & FIUs
Sovereign tier provides nullifier cross-reference: submit independently-obtained biometric evidence under a court order, recompute the SHA3-256 Keccak nullifier, and identify all wallets linked to a single identity — across chains, across time, without any platform cooperation. No biometric database to seize.
6AMLD · GDPR Art. 10 · FRE 803(6)
Book a Demo

20 minutes.
Live. No slides.

See the pre-mempool gate intercept a real transaction. Walk through the SAR/STR template generation. Ask anything. Praveen, the founder and CEO, runs every demo personally.

01
Live gate intercept on your wallet
02
SAR/STR template walkthrough
03
Integration & pricing discussion
Book 30 Minutes →

No pitch deck. No sales script. Just a live demonstration.