{"uid":"cap_g22e6OT6PyjJx5sf04iQm","slug":"sentinel-token-safety-68decb42","name":"Sentinel Token Safety","description":"Token safety pre-flight — one verdict before your agent buys, swaps or approves any ERC-20 on Base (GET ?contract=0x… or POST body {contract}). Call it right before the trade and branch on `verdict`: ALLOW / WARN / BLOCK, with `action`: PROCEED / REVIEW / ABORT and a one-line `reason`. Aggregates honeypot and scam-token detection, buy tax and sell tax, transfer restrictions, hidden mint and owner privileges, and EIP-1967 proxy upgrade risk into a single decision. `checks` carries the raw fields for audit. $0.10 USDC","url":"https://www.0816.cn/v1/base/token-safety","method":"GET","headers":{},"bodySchema":{"type":"object","$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":["contract"],"properties":{"contract":{"type":"string","description":"address (0x...) — also accepted in POST body"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.1","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":"$0.1/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.1","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.1","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_il0UIRhxEwyrQDYfJc-0z","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.1","costPer":"request","priority":0,"asset":"0xb6ceceab302e2e4948951ee7843fc24e92933061","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns a single ALLOW/WARN/BLOCK safety verdict for any ERC-20 token contract on Base before a buy, swap, or approval","exampleAgentPrompt":"Before we swap into 0x4ed4E862860beD51a9570b96d89aF5E1B0Efefed on Base, run a Sentinel token safety check on that contract address and tell me whether to proceed, review, or abort — and show me the verdict reason and any tax or honeypot flags.","exampleUseCases":[{"title":"Pre-trade honeypot check for DeFi bot","prompt":"My trading bot is about to buy token at 0x3Ee505bA316879d246a8fD2b3d7eE63b51B44FAB on Base — run a safety pre-flight on that contract and abort the trade if the verdict is BLOCK or if there's a honeypot detected."},{"title":"Wallet app token approval gate","prompt":"A user is trying to approve the ERC-20 contract 0xd9aAEc86B65D86f6A7B5B1b0c42FFA531710b6CA in our app on Base — check its safety verdict and warn the user if the action is REVIEW or ABORT."},{"title":"Portfolio scanner for suspicious tokens","prompt":"I received an airdrop of token contract 0x50c5725949A6F0c72E6C4a641F24049A917DB0Cb on Base and want to know if it's safe — check for hidden mint, owner privileges, sell restrictions, and give me the overall verdict before I do anything with it."}],"resultDescription":"A JSON object containing: `verdict` (ALLOW, WARN, or BLOCK), `action` (PROCEED, REVIEW, or ABORT), and `reason` (a one-line human-readable explanation). Also includes a `checks` object with raw audit fields covering honeypot detection, buy/sell tax percentages, transfer restrictions, hidden mint flags, owner privilege flags, and EIP-1967 proxy upgrade risk indicators.","failureModes":["Invalid or malformed contract address returns an error response","Contract address not found on Base network returns unknown/unverifiable verdict","Network or provider timeout may delay or fail the safety check","Non-ERC-20 contracts (e.g. NFTs, proxy-only) may return incomplete check coverage","Rate limiting or payment failure (x402) blocks the request"],"whenToPreferThis":"Use this endpoint when your agent is about to execute any ERC-20 buy, swap, or approval on the Base network and needs a single authoritative go/no-go decision aggregating honeypot, tax, transfer restriction, and proxy risk signals. Prefer it over individual honeypot checkers or tax scanners when you want one consolidated verdict with an actionable branch (PROCEED/REVIEW/ABORT) rather than assembling multiple raw signals yourself. Especially valuable for autonomous trading agents, DeFi bots, or wallet UIs that need a fast pre-trade safety gate.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-18T06:30:12.797Z","isFirstParty":false}