{"slug":"api-x402risk-com-v1-token-check-e754e8","title":"Pay-per-call token risk check for Base","host":"api.x402risk.com","method":"POST","resource":"https://api.x402risk.com/v1/token-check","category":"market","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 o","price_listed":0.01,"price_asked":null,"state":"effects","state_label":"Not tested: has real-world effects","checks_7d":0,"answered_7d":0,"latency_ms_median":null,"reported_calls_30d":1,"reported_payers_30d":1,"networks":["eip155:8453"],"badge":"unverified","paid_checks_7d":0,"paid_ok_7d":0,"example_input":{"body":{"token":"0x532f27101965dd16442E59d40670FaF5eBB142E4"},"bodyType":"json","method":"POST","type":"http"},"output_schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"additionalProperties":false,"properties":{"body":{"additionalProperties":false,"properties":{"token":{"description":"Base (chain 8453) ERC-20 token contract address","pattern":"^0x[0-9a-fA-F]{40}$","type":"string"}},"required":["token"],"type":"object"},"bodyType":{"enum":["json","form-data","text"],"type":"string"},"method":{"enum":["POST","PUT","PATCH"],"type":"string"},"type":{"const":"http","type":"string"}},"required":["type","method","bodyType","body"],"type":"object"},"output":{"properties":{"example":{"properties":{"capabilities_heuristic":{"type":"object"},"chain":{"type":"string"},"contract":{"type":"object"},"disclaimer":{"type":"string"},"errors":{"type":"array"},"flags":{"items":{"type":"string"},"type":"array"},"holders":{"type":["object","null"]},"liquidity":{"type":"object"},"risk_level":{"enum":["low","medium","high","unknown"],"type":"string"},"schema_version":{"type":"string"},"sources":{"type":"array"},"status":{"enum":["ok","partial","error"],"type":"string"},"token":{"type":"string"},"token_info":{"type":"object"}},"required":["schema_version","token","status","risk_level","flags","disclaimer"],"type":"object"},"type":{"type":"string"}},"required":["type"],"type":"object"}},"required":["input"],"type":"object"},"history":[],"description_full":"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.","last_updated":"2026-09-27T05:22:53.693Z","schemes":["exact"]}