{"slug":"x402-donnyautomation-com-arbitrum-slippage-f449c5","title":"What a trade size actually executes at on Arbitrum One, simulated against live r","host":"x402.donnyautomation.com","method":"GET","resource":"https://x402.donnyautomation.com/arbitrum/slippage","category":"market","description":"What a trade size actually executes at on Arbitrum One, simulated against live reserves. Returns best (venue, amountOut, executionPrice, priceImpactBps, feeBps, totalCostBps), routingGain, venues[]. Requires ?pair=SYM/SYM AND ?amountUsd=25000 (or ?amountIn=). pair alone = 400 missing_amount. Errors:","price_listed":0.01,"price_asked":0.01,"state":"answering","state_label":"Answering","checks_7d":1,"answered_7d":1,"latency_ms_median":895,"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":{"amountUsd":"10000","pair":"WETH/USDC"},"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":{"amountIn":{"description":"Trade size denominated in the FIRST pair symbol instead of USD. An alternative to amountUsd; supplying either one is enough.","type":"string"},"amountUsd":{"description":"Trade size in USD, e.g. 10000. Required unless amountIn is given instead.","type":"string"},"pair":{"description":"Token pair as SYM/SYM on Arbitrum One (e.g. WETH/USDC).","type":"string"}},"required":["pair","amountUsd"],"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":[{"day":"2026-09-24","reachable":true,"status":402,"valid_402":true,"asked_usdc":0.01,"price_match":true,"latency_ms":895,"error":null}],"description_full":"What a trade size actually executes at on Arbitrum One, simulated against live reserves. Returns best (venue, amountOut, executionPrice, priceImpactBps, feeBps, totalCostBps), routingGain, venues[]. Requires ?pair=SYM/SYM AND ?amountUsd=25000 (or ?amountIn=). pair alone = 400 missing_amount. Errors: 400 bad_pair|missing_amount|bad_amount, 404 no_pools|no_quote|cannot_size_in_usd, 502 upstream_read_failed. Spot price without a size is /price. Chain-pinned; bare /slippage = BSC.","last_updated":"2026-08-30T07:39:32.002Z","schemes":["exact"]}