{"uid":"cap_DGSRjRUP6zLbJUlkmZ3oV","slug":"base-token-risk-check-35f6245d","name":"Base Token Risk Check","description":"Pay-per-call token risk check for Base: send a Base ERC-20 contract address, get deterministic JSON risk flags (owner/renounced, upgradeable proxy, mint/pause/blacklist/fee functions, on-chain Uniswap v2/v3 + Aerodrome liquidity, holder concentration) and a rule-based risk_level. Use before buying or listing an unfamiliar Base token. $0.01 USDC. Invalid input returns 400 and is not charged. Not financial advice.","url":"https://api.x402risk.com/v1/token-check?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"token":{"type":"string","pattern":"^0x[0-9a-fA-F]{40}$","description":"Base (chain 8453) ERC-20 token contract address"}}},"responseSchema":{"type":"json","example":{"chain":"base","flags":[],"token":"0x532f27101965dd16442E59d40670FaF5eBB142E4","status":"ok","holders":{"holders_count":948126,"top1_share_ex_pools_burn":0.1166,"top10_share_ex_pools_burn":0.318},"chain_id":8453,"contract":{"is_contract":true,"owner_renounced":true,"is_eip1967_proxy":false},"liquidity":{"best_estimate_usd":2618438.83,"onchain_approx_liquidity_usd":1779451.93},"disclaimer":"Informational on-chain data only. Not financial, investment, legal or tax advice. Heuristic flags can be wrong; do your own research.","risk_level":"low","token_info":{"name":"Brett","symbol":"BRETT","decimals":18},"schema_version":"1.0"}},"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_ugywiUFCWugpgWn1RWmeb","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 ERC-20 token contract address and returns deterministic on-chain risk flags, liquidity data, holder concentration, and a rule-based risk level for $0.01 USDC per call.","exampleAgentPrompt":"Before I buy any, can you run a risk check on the Base token at 0x532f27101965dd16442E59d40670FaF5eBB142E4 and tell me the risk level, whether the owner is renounced, if there are any mint or blacklist functions, and how much on-chain liquidity it has?","exampleUseCases":[{"title":"Pre-buy token safety screen","prompt":"I'm about to buy some of this Base token at 0x4ed4E862860beD51a9570b96d89aF5E1B0Efefed — can you check it for risk flags like mint functions, blacklisting, upgradeable proxy, and tell me the overall risk level and liquidity before I commit?"},{"title":"Token listing due diligence","prompt":"We're considering listing this Base ERC-20 at 0x940181a94A35A4569E4529A3CDfB74e38FD98631 on our DEX aggregator — run a risk check on it and flag anything concerning like high holder concentration, pausing functions, or non-renounced ownership."},{"title":"Portfolio watchlist risk audit","prompt":"Can you check the risk profile for the Base token contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 — I want to know the holder concentration stats, whether it's a proxy, and its current on-chain liquidity estimate?"}],"resultDescription":"A JSON object containing: token metadata (name, symbol, decimals), contract flags (owner_renounced, is_eip1967_proxy), detected function risks (mint, pause, blacklist, fee), on-chain liquidity estimates in USD from Uniswap v2/v3 and Aerodrome, holder concentration metrics (top holder share and top-10 share excluding pools/burn), and a deterministic risk_level string (e.g. 'low', 'medium', 'high'). Invalid inputs return HTTP 400 and are not billed.","failureModes":["400 Bad Request if the address is not a valid 0x-prefixed 40-hex-character string (not charged)","Address exists but is not a deployed ERC-20 contract on Base chain 8453","On-chain data temporarily unavailable for liquidity or holder analysis","Token is too new or obscure to have meaningful holder/liquidity data","Heuristic flags may produce false positives or miss obfuscated risks (per disclaimer)"],"whenToPreferThis":"Use this endpoint when you need a fast, deterministic, pay-per-call on-chain risk assessment specifically for Base chain (chain ID 8453) ERC-20 tokens. It is ideal for pre-trade screening, automated listing pipelines, or portfolio audits where you need concrete flags (mint, blacklist, proxy, holder concentration, liquidity) without integrating a full blockchain node or indexer. Prefer it over generic token info APIs when risk classification and contract security heuristics are the primary concern.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-02T04:14:47.154Z","isFirstParty":false,"canonicalSlug":"base-token-risk-check-35f6245d"}