{"uid":"cap_24JkodC226UGp_ejLK6AA","slug":"base-token-control-risk-screen-0a3b23c8","name":"Base Token Control-Risk Screen","description":"Pay-per-call utility APIs in USDC on Base: Hebrew calendar and text tools, Shabbat times, Base token control-risk screen and address summary, plus finance arithmetic tools. General information and arithmetic only; not investment, tax or legal advice and not a recommendation to buy, sell or hold anything.","url":"https://heb-utils-x402.hebutils-api.workers.dev/base-token-check?utm_source=zero.xyz","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":"Base token contract address"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"chain":"base","flags":["upgradeable proxy"],"symbol":"USDC","verdict":"many_control_signals"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.02","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":"$0.02/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_GiQh-xTXLQWWkKsaeLL2u","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.02","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Screens a Base chain token contract address for control-risk signals (e.g. upgradeable proxy, ownership concentration) and returns a verdict with flags and token metadata.","exampleAgentPrompt":"Can you screen the Base token at contract address 0xd9aAEc86B65D86f6A7B5B1b0c42FFA531710b6CA for control risks — I want to know if it has any upgradeable proxy flags or other centralization signals before I interact with it.","exampleUseCases":[{"title":"Pre-investment token safety check","prompt":"Before I buy any of this token, can you check the Base contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 for control-risk signals? I want to know the verdict and any flags like upgradeable proxy or admin controls."},{"title":"DeFi protocol due diligence","prompt":"I'm about to provide liquidity to a pool that uses this Base token at 0x4200000000000000000000000000000000000006 — can you run a control-risk screen on it and tell me what flags come up?"},{"title":"Automated token screening in an agent workflow","prompt":"For every new Base token I'm considering adding to my watchlist, I need a quick risk verdict — can you screen 0x50c5725949A6F0c72E6C4a641F24049A917DB0Cb and tell me its symbol, chain, verdict, and any control flags?"}],"resultDescription":"Returns a JSON object with the token's chain (e.g. 'base'), symbol (e.g. 'USDC'), an array of control-risk flags (e.g. ['upgradeable proxy']), and a verdict string (e.g. 'many_control_signals') summarizing the overall risk level.","failureModes":["Invalid or non-contract address returns an error","Non-Base chain addresses are not supported","Unverified or newly deployed contracts may yield incomplete flag data","Network or RPC timeout results in a service error","Missing required 'address' query parameter returns a 400-level error"],"whenToPreferThis":"Use this endpoint when you need a fast, structured risk-signal summary for a specific Base token contract address — particularly to surface control risks like upgradeability or admin key concentration before interacting with or listing a token. Prefer this over manual contract auditing when you need a programmatic, per-call verdict suitable for agent workflows or automated due diligence pipelines.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-11T12:46:52.023Z","isFirstParty":false,"canonicalSlug":"base-token-control-risk-screen-0a3b23c8"}