{"uid":"cap_oxxe934fQwrVuSw1tKFFo","slug":"xx402-base-erc20-token-contract-risk-api-7741b2eb","name":"xx402 Base ERC20 Token Contract Risk API","description":"Paid Base token, wallet, DeFi, chain-read, x402 buyer/seller discovery, and specialized Bitcoin 15-minute Up/Down prediction-market data packets for autonomous agents and risk tools.","url":"https://x402.xx402.icu/api/base-token-contract-risk?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":null,"responseSchema":{"keys":["summary","purchase_acceptance","buyer_next_action","next_paid_call","decision_evidence","repeat_purchase_guard","contract_control_decision","priority_queue","best_next_products","control_breakdown","review_queue","avoid_queue","token","contract","proxy","control","selector_heuristics","bucket_counts","risk","source_status","not_financial_advice","sources"],"type":"json"},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","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":"down","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_NSe1X1kMf43gVzHFHkSre","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Analyzes a Base chain ERC20 token contract address and returns a structured risk assessment including contract control, proxy structure, selector heuristics, and buy/sell decision guidance for autonomous agents.","exampleAgentPrompt":"Before I swap into this Base token at 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913, run a contract risk check on it — tell me if there are any proxy controls, admin risks, or red flags I should know about.","exampleUseCases":[{"title":"Pre-trade DeFi risk screening","prompt":"I'm about to buy some tokens at contract address 0x4200000000000000000000000000000000000006 on Base — can you run a risk check on that contract and tell me if it's safe to proceed or if there are any control or proxy concerns?"},{"title":"Autonomous agent trade guard","prompt":"Before executing any swap, check the contract risk for Base token 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 and only proceed if the purchase acceptance flag is positive and there are no high-severity contract control issues."},{"title":"Token contract due diligence report","prompt":"I need a full risk breakdown for the Base ERC20 contract at 0x50c5725949A6F0c72E6C4a641F24049A917DB0Cb — include proxy structure, selector heuristics, and your overall recommendation on whether this is safe to interact with."}],"resultDescription":"Returns a JSON object with a risk summary, purchase acceptance flag, buyer next action recommendation, contract control decision, proxy structure details, selector heuristics, bucket counts, source status, repeat purchase guard signal, priority and review queues, and a list of best next products — along with a disclaimer that the data is not financial advice.","failureModes":["Invalid or malformed token_address (not a valid 0x hex address) returns an error","Contract address not deployed on Base chain returns empty or error response","Rate limiting or payment failure (x402 payment not processed) results in 402 response","Source APIs unavailable may result in degraded or partial data with source_status flags set","Non-ERC20 contract address may return incomplete analysis"],"whenToPreferThis":"Use this endpoint when you need on-chain contract-level risk signals for a specific Base ERC20 token before executing a trade, swap, or DeFi interaction. It is purpose-built for autonomous agents performing pre-trade safety checks on Base chain tokens, offering structured control/proxy analysis and actionable buy-decision fields that generic blockchain explorers or token price APIs do not provide. Prefer this over general token info APIs when the concern is smart contract security, admin control, or rug-pull detection rather than price or liquidity.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-25T02:28:51.248Z","isFirstParty":false,"canonicalSlug":"xx402-base-erc20-token-contract-risk-api-7741b2eb"}