{"slug":"api-x402node-dev-defi-price-impact-a6bb19","title":"Estimate the price impact (slippage) of a swap of a given size by comparing Unis","host":"api.x402node.dev","method":"GET","resource":"https://api.x402node.dev/defi/price-impact","category":"code","description":"Estimate the price impact (slippage) of a swap of a given size by comparing Uniswap V3 quotes at minimal vs target size - tells trading agents how much a large order will move the price against them before they execute, on-chain data LLMs cannot compute. price impact, slippage estimate, swap slippag","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":3,"reported_payers_30d":3,"networks":["eip155:8453","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"],"badge":"unverified","paid_checks_7d":0,"paid_ok_7d":0,"example_input":{"method":"GET","queryParams":{"amount":"string","chain":"string","tokenIn":"string","tokenOut":"string"},"type":"http"},"output_schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"additionalProperties":false,"properties":{"method":{"enum":["GET"],"type":"string"},"queryParams":{"properties":{"amount":{"description":"Trade size in tokenIn units (default 1000)","type":"string"},"chain":{"description":"base (default), ethereum, arbitrum, optimism, polygon","type":"string"},"tokenIn":{"description":"Input token (required)","type":"string"},"tokenOut":{"description":"Output token (required)","type":"string"}},"required":["tokenIn","tokenOut"],"type":"object"},"type":{"const":"http","type":"string"}},"required":["type","method"],"type":"object"}},"required":["input"],"type":"object"},"history":[],"description_full":"Estimate the price impact (slippage) of a swap of a given size by comparing Uniswap V3 quotes at minimal vs target size - tells trading agents how much a large order will move the price against them before they execute, on-chain data LLMs cannot compute. price impact, slippage estimate, swap slippage, large trade impact, market depth, liquidity check Accepts payment on Base or Solana — either network works.","last_updated":"2026-09-10T17:52:28.437Z","schemes":["exact"]}