{"uid":"cap_sb7K5oGV7QVa8vQQzKEry","slug":"base-token-safety-check-x402-ca81f3f4","name":"Base Token Safety Check (x402)","description":"Honeypot / rug-risk verdict (GREEN / ORANGE / RED) for a Base ERC-20 token. Live buy→transfer→sell simulation via eth_call (no transaction). Pay per call with x402 (USDC on Base). Not financial advice.","url":"https://base-token-safety.frcompanycheck.workers.dev/v1/token/%7Baddress%7D?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","properties":{"properties":{"type":"string"}}},"responseSchema":{"type":"json","example":{"chain":"base","checks":{"can_buy":true,"can_sell":true,"is_proxy":false,"sell_tax_pct":0,"liquidity_eth":79.19,"owner_renounced":true,"dangerous_functions":["pause"]},"symbol":"DEGEN","address":"0x4ed4E862860beD51a9570b96d89aF5E1B0Efefed","verdict":"ORANGE","cautions":["bytecode contains pause/unpause: transfers can be frozen by the owner"],"red_flags":[],"sell_test":{"venue":"uniswap_v3_1%","buy_ok":true,"eth_in":0.05,"sell_ok":true,"roundtrip_loss_pct":11.8},"passes_filter":true,"missing_key_data":[]}},"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":"unknown","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_spoDmeVM5WQnmlgRmcB-Q","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":"Runs a live honeypot and rug-risk simulation on a Base ERC-20 token address, returning a GREEN/ORANGE/RED verdict with buy/sell feasibility, tax rates, and liquidity data.","exampleAgentPrompt":"Can you check if the Base token at address 0x4ed4E862860beD51a9570b96d89aF5E1B0Efefed is a honeypot — will it let me buy and sell, and what's the rug risk verdict?","exampleUseCases":[{"title":"Memecoin honeypot check before buying","prompt":"Before I ape into this Base token at 0x1234567890abcdef1234567890abcdef12345678, can you simulate a buy and sell to see if it's a honeypot and what the sell tax looks like?"},{"title":"DeFi bot pre-trade safety gate","prompt":"Run a rug-risk check on Base token 0xabcdefabcdefabcdefabcdefabcdefabcdefabcd — I need to know if it's GREEN, ORANGE, or RED and whether there are any dangerous contract functions before my bot places a trade."},{"title":"Token listing due diligence","prompt":"I'm considering listing this Base ERC-20 token 0xDeAdBeEfDeAdBeEfDeAdBeEfDeAdBeEfDeAdBeEf on my platform — can you check if ownership is renounced, whether transfers can be frozen, and what the overall safety verdict is?"}],"resultDescription":"Returns a JSON object with: a verdict string (GREEN, ORANGE, or RED), boolean flags for can_buy and can_sell, sell_tax_pct, liquidity_eth, owner_renounced, a list of dangerous_functions, cautions and red_flags arrays, a sell_test block showing the simulated venue, roundtrip_loss_pct, and a passes_filter boolean. The simulation uses eth_call so no on-chain transaction is submitted.","failureModes":["Invalid or non-ERC-20 contract address returns an error or missing_key_data fields","Token with no Uniswap V3 liquidity may fail the sell simulation and return incomplete results","Payment failure via x402 (USDC on Base) results in 402 response before analysis runs","Rate limiting or RPC timeout on Base may cause partial or failed response","Very new tokens with no trading history may lack sufficient data for a full verdict"],"whenToPreferThis":"Use this endpoint when you need a fast, live simulation-based honeypot and rug-risk verdict specifically for Base network ERC-20 tokens, especially before automated trading or listing decisions. It is preferable over static on-chain analysis tools because it actually simulates buy→transfer→sell via eth_call, revealing hidden sell taxes and frozen-transfer traps that static code analysis misses. Choose this over generic token scanners when the token is on Base and you need a structured GREEN/ORANGE/RED verdict with itemized cautions.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-12T12:30:05.413Z","isFirstParty":false,"canonicalSlug":"base-token-safety-check-x402-ca81f3f4"}