Wallet security at scale.
The same engine that powers cryptoguard.services, available as a REST API. OFAC sanctions, scam detection, mixer analysis, and smart contract risk across 35+ chains.
No credit card required. 1,000 free API calls / month.
curl -X POST https://cryptoguard.services/v1/scan/wallet \
-H "X-API-Key: cg_live_xxx" \
-H "Content-Type: application/json" \
-d '{"address":"0x7F367cC41522cE07553e823bf3be79A889DEbe1B","chain_id":1}'
{
"risk_score": 82,
"risk_level": "HIGH",
"flags": [
"[OFAC] Address is on the US Treasury SDN sanctions list",
"[CryptoGuard] Linked to phishing activity"
],
"data_sources": ["CryptoGuard Engine","OFAC US Treasury", ...]
}What you get
Every request runs the full CryptoGuard scoring engine.
OFAC sanctions check
US Treasury SDN list, refreshed daily.
Scam & phishing
Our own database, auto-updated from public lists and user reports.
Mixer detection
70+ Tornado Cash and other mixer addresses across 6 chains.
Smart contract analysis
Bytecode-level checks for honeypots, hidden taxes, drainers.
< 3s response time
p50 under 2 seconds. Built on our own RPC infrastructure.
35+ chains
EVM (Ethereum, BNB, Polygon, Arbitrum…), plus BTC, SOL, Tron, XRP, ADA, and more.
Who uses CryptoGuard API
If you handle crypto on behalf of customers, you need this.
Exchanges & CEX
Screen deposits and withdrawals against OFAC and scam lists in milliseconds.
Wallets & dapps
Warn users before they sign transactions to risky counterparties.
OTC desks
Pre-trade counterparty checks. Audit-ready logs for compliance.
MiCA-licensed CASPs
Sanctions and Travel Rule pre-flight screening for EU compliance.
Pricing
Pay for what you use. Overage billed at 2× the per-call rate.
All plans include all 35+ chains, all endpoints, and the same risk engine. Free tier has no overage billing — paid tiers can exceed their included pool.
Same engine. Same data. Two doors.
CryptoGuard powers risk decisions for individuals through cryptoguard.services and for businesses through this API. Same proprietary scoring engine, same OFAC feed, same scam database — read directly from blockchain via our own RPC infrastructure.
Start with 1,000 free calls / month
No credit card. Self-serve. Generate an API key and make your first call in under 5 minutes.
Get my API key