{"slug":"apexfaucet-xyz-api-x402-contract-flags-a43f48","title":"Smart contract risk check (Base, Arc)","host":"apexfaucet.xyz","method":"GET","resource":"https://apexfaucet.xyz/api/x402/contract-flags","category":"code","description":"Smart contract risk check (Base, Arc): can the owner mint, pause, blacklist, change fees or upgrade the code? What can the people behind this contract do to holders? Pass ?chain=base|arc&address=0x... and we read its bytecode on chain (and the code behind a proxy): mint, pause, blacklist, change fee","price_listed":0.004,"price_asked":null,"state":"effects","state_label":"Not tested: has real-world effects","checks_7d":0,"answered_7d":0,"latency_ms_median":null,"reported_calls_30d":4,"reported_payers_30d":1,"networks":["eip155:5042","eip155:8453","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"],"badge":"unverified","paid_checks_7d":0,"paid_ok_7d":0,"example_input":{"discoverable":true,"method":"GET","queryParams":{"address":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","chain":"base"},"type":"http"},"output_schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"properties":{"method":{"enum":["GET"],"type":"string"},"queryParams":{"properties":{"address":{"description":"The contract address (0x...).","pattern":"^0x[0-9a-fA-F]{40}$","type":"string"},"chain":{"description":"Which chain: base or arc.","enum":["base","arc"],"type":"string"}},"required":["chain","address"],"type":"object"},"type":{"const":"http","type":"string"}},"required":["type","method","queryParams"],"type":"object"},"output":{"type":"object"}},"required":["input"],"type":"object"},"history":[],"description_full":"Smart contract risk check (Base, Arc): can the owner mint, pause, blacklist, change fees or upgrade the code? What can the people behind this contract do to holders? Pass ?chain=base|arc&address=0x... and we read its bytecode on chain (and the code behind a proxy): mint, pause, blacklist, change fees or taxes, cap wallets, switch trading off, upgrade the code. Plus proxy type, who owns it now (renounced or a live wallet or contract) and basic token data.","last_updated":"2026-09-27T07:35:47.031Z","schemes":["exact"]}