{"uid":"cap_xKym0aVzTi7B98GW33n1E","slug":"quietsignal-contract-controls-inspector-825f7226","name":"QuietSignal Contract Controls Inspector","description":"QuietSignal Public Data: independent, read-only rollup, wallet, opportunity, and developer-data facts for agents, paid per request with USDC over HTTP 402 on Base.","url":"https://83-29-153-50.sslip.io/v1/contract-controls","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","required":["address"],"properties":{"address":{"type":"string","description":"Public Base contract address to inspect"}},"additionalProperties":false}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"schema":"base-contract-controls/v1","address":"0x0000000000000000000000000000000000000000","eip1967":{"implementation":{"address":null,"present":false}},"network":"eip155:8453","disclaimer":"Observed markers only; not a security or investment assessment.","callability":{"owner":{"address":null,"responded":false},"paused":{"value":null,"responded":false}},"is_contract":false}},"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_BgTypJZrEUY0jco1XCv_H","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":"Fetches machine-readable control and upgradeability facts for a given Base smart contract address, including proxy implementation, owner, and pause state.","exampleAgentPrompt":"Can you check the contract controls for 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48 on Base — I want to know if it's behind a proxy, who owns it, and whether it's currently paused?","exampleUseCases":[{"title":"Verify proxy upgrade risk before investing","prompt":"Before I interact with this DeFi protocol on Base at 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913, can you check if it's an upgradeable proxy and who controls the implementation?"},{"title":"Audit ownership of a deployed contract","prompt":"I just deployed a contract on Base at 0x1234567890abcdef1234567890abcdef12345678 — can you confirm who the owner is and whether the contract is actually live on-chain?"},{"title":"Check if a protocol is paused during incident","prompt":"There are rumors that the Base lending protocol at 0x3fC91A3afd70395Cd496C647d5a6CC9D4B2b7FAD has been emergency-paused — can you verify if the paused flag is currently set?"}],"resultDescription":"Returns a JSON object with the contract address, network (eip155:8453 for Base), whether the address is a contract, EIP-1967 proxy implementation details (address and presence flag), and callability data including owner address and pause state. Includes a disclaimer that results are observed markers only and not a security or investment assessment.","failureModes":["Address not a contract: is_contract returns false, proxy and owner fields respond false/null","Invalid or malformed address: request may fail or return empty results","Contract does not implement standard owner()/paused() interfaces: responded fields return false","Network congestion or RPC issues may delay or fail the lookup","Rate limits or payment failures (HTTP 402) if USDC payment is not properly attached"],"whenToPreferThis":"Choose this endpoint when you need a lightweight, read-only factual snapshot of a Base smart contract's control structure — specifically proxy upgradeability, ownership, and pause state — without running your own RPC node or indexer. Ideal for pre-interaction due diligence on Base contracts, automated security checks in agent workflows, or quickly auditing whether a contract is upgradeable or admin-controlled.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T20:25:55.265Z","isFirstParty":false}