{"slug":"bot-bazaar-fly-dev-v1-x402-defi-unsigned-swap-calldata-linte-b1e69f","title":"Pre-Flight Base Swap Heuristic & Unsigned Calldata Linter","host":"bot-bazaar.fly.dev","method":"GET","resource":"https://bot-bazaar.fly.dev/v1/x402/defi/unsigned-swap-calldata-linter","category":"code","description":"Pre-Flight Base Swap Heuristic & Unsigned Calldata Linter: screens token/router/hook addresses against OFAC SDN, checks Uniswap v4 hook-delta flags and slippage bounds, and formats an unsigned ERC-20 approve + swap transaction template (integrator_fee_bps: 0, never signs or broadcasts). Also availab","price_listed":0.02,"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":{"method":"GET","queryParams":{"amount_in_atomic":"100000000","token_in":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"},"type":"http"},"output_schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"additionalProperties":false,"properties":{"method":{"enum":["GET","HEAD","DELETE"],"type":"string"},"queryParams":{"properties":{"amount_in_atomic":{"description":"Input amount in atomic token units","type":"string"},"dex_router":{"description":"Target Base router (uniswap_universal_router, aerodrome_v2, odos_v2, zerox_settler)","type":"string"},"from_address":{"description":"Caller unhosted wallet 0x address","pattern":"^0x[0-9a-fA-F]{40}$","type":"string"},"slippage_bps":{"description":"Max slippage tolerance in bps (e.g. 50)","type":"string"},"token_in":{"description":"Input ERC-20 token address on Base","pattern":"^0x[0-9a-fA-F]{40}$","type":"string"},"token_out":{"description":"Output ERC-20 token address on Base","pattern":"^0x[0-9a-fA-F]{40}$","type":"string"}},"type":"object"},"type":{"const":"http","type":"string"}},"required":["type","method"],"type":"object"},"output":{"properties":{"example":{"type":"object"},"type":{"type":"string"}},"required":["type"],"type":"object"}},"required":["input"],"type":"object"},"history":[],"description_full":"Pre-Flight Base Swap Heuristic & Unsigned Calldata Linter: screens token/router/hook addresses against OFAC SDN, checks Uniswap v4 hook-delta flags and slippage bounds, and formats an unsigned ERC-20 approve + swap transaction template (integrator_fee_bps: 0, never signs or broadcasts). Also available at aliases /v1/x402/defi/pre-flight-swap-audit and /v1/swap/build-quote.","last_updated":"2026-10-28T03:10:55.534Z","schemes":["exact"]}