NFT Safety Check
Help
Paste a Base mainnet NFT contract address, or a supported Base NFT URL from BaseScan, Blockscout, or OpenSea. You may add a token ID when using a contract address.
The service reads public blockchain data. It does not receive, hold, buy, sell, or transfer your NFT. The single-NFT check needs no wallet connection or transaction signature.
Free preview
The free preview shows whether contract code exists, a detected ERC-721 or ERC-1155 standard, token-read status, and a preliminary signal level and count. Detailed reads, evidence, and full indicators stay locked.
$4.99 full report
The full report adds complete contract-read evidence, proxy observations, detailed indicators, bounded recent transfer analysis when supported, limitations, a fingerprint, and a JSON download.
Transfer analysis covers up to 500 recent blocks at your scan snapshot for confirmed ERC-721 contracts. Provider or resource limits may reduce that coverage; the report states the actual range. If no transfer-history page can be verified for an ERC-721 scan, checkout cannot start. ERC-1155 reports contain contract evidence without transfer-history analysis.
The report is prepared before checkout and unlocked only after PayPal confirms the exact payment. NFT Safety Check adds no fee beyond $4.99; PayPal may show its own terms or fees. We never receive your PayPal password.
Report access
Keep the payment browser tab open. Its private report token is stored only in that tab, and paid reports are retained for seven days.
Cancelled, failed, or expired checkout does not unlock a report or start a second charge. If payment is confirmed while delivery is delayed, the page shows “Payment received—report recovery in progress.” A confirmed refund locks future report access.
Support and refunds
Use the CJax Intelligence merchant contact shown in your PayPal receipt so the request stays tied to the correct transaction.