{"uid":"cap_8m0MBR3kiGuN9LBvWZn8D","slug":"contractwatch-continuous-smart-contract-security-monitor-dd1d34e0","name":"ContractWatch – Continuous Smart Contract Security Monitor","description":"Continuous smart-contract monitoring and change detection. Returns the CURRENT security verdict PLUS exactly what changed since the last time this contract was checked: owner changed / ownership taken back, proxy implementation or beacon upgraded (logic swap), proxy-admin changed, Sourcify verification gained or lost, honeypot or buy/sell tax flip, new dangerous functions (mintable, pausable, blacklist, selfdestruct, hidden owner), trust-list on/off, and verdict escalation. Built on the same on-chain engine as contract_guard (web3 proxy/owner reads + Sourcify + GoPlus token & address security). Ed25519-signed. $0.32 USDC via x402 on Base. SYNTHORA.","url":"https://contractwatch.hergertsynthora.com/service","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"input":{"type":"string","description":"SYNTHORA contractwatch: verdict de seguridad de contrato on-chain que SI lee el bytecode (eth_getCode) y slots de proxy (EIP-1967/zeppelinos/UUPS/beacon), owner() y privilegios ocultos: honeypot, rug-"}}},"responseSchema":{"type":"json","schema":{"type":"object","required":["ok","niche"],"properties":{"ok":{"type":"boolean"},"error":{"type":"string"},"niche":{"type":"string"},"result":{"type":"object","properties":{"chain":{"type":"string"},"flags":{"type":"array"},"owner":{"type":"string"},"proxy":{"type":"boolean"},"address":{"type":"string"},"changed":{"type":"boolean"},"changes":{"type":"array"},"verdict":{"type":"string"},"verified":{"type":"boolean"},"rationale":{"type":"string"},"proxy_standard":{"type":"string"}}},"receipt":{"type":"object"}}},"example":{"ok":true,"niche":"contract_guard","result":{"chain":"base","flags":["código NO verificado en Sourcify","PROXY actualizable (zeppelinos) — el admin/owner puede cambiar la lógica (impl 0x2Ce6311d…)","..."],"owner":"0x3ABd6f64A422225E61E435baE41db12096106df7","proxy":true,"address":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","verdict":"medium","verified":false,"rationale":"SIN verificar. Proxy actualizable (zeppelinos: riesgo de cambio de lógica). Tiene owner/control centralizado.","disclaimer":"No es consejo financiero. Análisis automatizado de seguridad on-chain con procedencia firmada.","proxy_standard":"zeppelinos"},"provenance":"<3 fuentes independientes>"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.32","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.32/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.32","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.32","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_nGZoR_wrwm9qtFYZ8vU3I","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.32","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Monitors an EVM smart contract on Base or Ethereum and returns the current security verdict plus a diff of what changed since the last check (ownership, proxy upgrades, honeypot status, dangerous functions, etc.)","exampleAgentPrompt":"Can you check the ContractWatch monitor for the Ethereum contract at 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48 and tell me what has changed since it was last checked — any ownership transfers, proxy upgrades, or new dangerous functions?","exampleUseCases":null,"resultDescription":"A JSON payload containing the current security verdict for the contract (honeypot status, buy/sell tax, dangerous functions, trust-list flag, proxy info, source verification) and a structured diff listing exactly what changed since the last time this contract was checked — including owner changes, proxy implementation swaps, admin changes, Sourcify verification gains/losses, honeypot or tax flips, new dangerous function appearances, and verdict escalations. Results are Ed25519-signed.","failureModes":["Invalid or non-existent contract address returns an error or empty result","Unsupported chain value returns a validation error","Contract not yet cached — first-time check returns current verdict with no diff","GoPlus or Sourcify APIs temporarily unavailable causing partial or failed response","Payment not confirmed causing 402 or unauthorized error"],"whenToPreferThis":"Choose this endpoint when you need continuous or recurring security monitoring of a specific smart contract and want to know not just the current risk verdict but exactly what has changed since the last check — ideal for rug-pull detection, proxy upgrade surveillance, or automated security drift alerts. Prefer this over one-off audit tools when you need delta/change tracking over time at low cost per call.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T18:38:27.682Z","isFirstParty":false}