Pricing & API Access

Automated contract audits and wallet fraud scans across 15 blockchains. Every report is hash-sealed and anchored on Qumtam Chain so anyone can verify it later.

Free

$0 forever
  • 20 analyses per hour
  • All 15 supported blockchains
  • Contract audit + wallet fraud scan
  • AI risk summary
  • Permanent on-chain-anchored reports
  • Public report archive & verification
  • Embeddable live score badge
Start scanning — free

Pro API

$29 / month
  • Everything in Free
  • Dedicated API key (no hourly cap)
  • JSON REST API for audits, scans & reports
  • Badge + report deep-links for your project
  • Priority re-scan of updated contracts
  • Email support
Buy instantly with USDT

Enterprise / Manual Review

Custom
  • Everything in Pro
  • Line-by-line manual code review
  • Written audit report (PDF)
  • Pre-launch token & DEX-listing checks
  • Continuous monitoring of your contracts
  • Private (unlisted) reports on request
Request a quote

Buy Pro — pay with USDT, key issued instantly

  1. Send 29 USDT on Ethereum, BNB Chain or Polygon to the payment address below
  2. Paste your transaction hash and email
  3. We verify it on-chain and issue your Pro API key instantly (also emailed to you)
PAYMENT ADDRESS 0x57Eb984FB6fA8a72c30D0a8f332F3d56f35b52a6

REST API

Base URL: https://qumtamchain.com — Pro users send their key in the X-Shield-Key header. Without a key, the free limit of 20 requests/hour per IP applies.

EndpointMethodPurpose
/api/shield/auditPOSTFull smart-contract security audit (score, findings, AI summary, anchored report)
/api/shield/scanPOSTWallet / address fraud scan (balance, tokens, approvals, scam interactions)
/api/shield/reportsGETPublic archive of all audit reports
/api/shield/report/{id}GETFetch one report by its SHA-256 ID
/api/shield/report/{id}/rawGETRaw signed bytes — hash them to verify integrity
/api/shield/report/{id}/pdfGETBranded, shareable PDF version of any report
/api/shield/monitorPOSTWatch a contract — email alert when its score changes (free: 3/email)
/api/shield/pay/statusPOSTLive payment status — confirmations progress for a pending USDT tx
/api/shield/pay/verifyPOSTVerify a USDT payment tx and receive a Pro key instantly
/api/shield/badge/{net}/{address}GETLive SVG score badge
/api/shield/statsGETPlatform stats (report count, networks)

Example — audit a contract

curl -X POST https://qumtamchain.com/api/shield/audit \
  -H "Content-Type: application/json" \
  -H "X-Shield-Key: YOUR_PRO_KEY" \
  -d '{"network":"eth","address":"0xdAC17F958D2ee523a2206206994597C13D831ec7"}'

Example — scan a wallet

curl -X POST https://qumtamchain.com/api/shield/scan \
  -H "Content-Type: application/json" \
  -d '{"network":"polygon","address":"0xYourWalletAddress"}'

Supported networks

eth · bsc · polygon · arbitrum · base · optimism · avalanche · gnosis · celo · scroll · linea · zksync · fantom · gg · qumtam

Report verification

Every report ID is the SHA-256 hash of the report body, and that hash is written into a transaction on Qumtam Chain at the moment of the audit. Anyone can re-hash the raw report and compare it with the on-chain anchor — if even one byte was changed later, the hashes will not match.

Automated reports are generated by the Qumtam Shield security engine and sealed on-chain for authenticity. Enterprise manual reviews are performed by human security specialists under a written agreement.