{"uid":"cap_D_S7URxW4q11WB52QH3kr","slug":"preflight-bridge-route-a5e14142","name":"PreFlight Bridge Route","description":"Pre-trade & pre-sign checks for autonomous agents: everything an agent verifies BEFORE signing a transaction — token due diligence, calldata red-flag decoding, oracle freshness, holder concentration, bridge routing with executable calldata, cross-venue perp funding, gas and price sanity checks. EVM chains: Ethereum, Base, Arbitrum, Optimism.","url":"https://meryol-agenticmarket-x402.hf.space/bridge/route","method":"POST","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method","bodyType","body"],"properties":{"body":{"type":"object","required":["from_chain","to_chain","from_token","to_token","amount"],"properties":{"amount":{"type":"string","description":"atomic units as decimal string"},"to_chain":{"type":"string"},"to_token":{"type":"string"},"from_chain":{"type":"string","description":"ethereum|base|arbitrum|optimism|polygon|bsc|avalanche"},"from_token":{"type":"string","description":"'usdc' or 0x address"},"from_address":{"type":"string","description":"optional sender address"}}},"type":{"type":"string","const":"http"},"method":{"enum":["POST","PUT","PATCH"],"type":"string"},"bodyType":{"enum":["json","form-data","text"],"type":"string"}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","required":["tool","estimated_out"]}}}}},"responseSchema":{"type":"json","example":{"tool":"across","notes":[],"amount":"1000000000","fee_usd":0.2,"gas_usd":0.05,"to_chain":"base","to_token":"usdc","from_chain":"ethereum","from_token":"usdc","tool_steps":["across"],"eta_seconds":180,"estimated_out":"999800000","estimated_out_usd":999.8}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"registry","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_qbfRNGhgLte3ZfEm84myK","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":null,"unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Finds the optimal cross-chain bridge route with executable calldata, fee estimates, and ETA for moving tokens between EVM chains before signing","exampleAgentPrompt":"Before I sign anything, find the best bridge route and fee estimate for sending 1000 USDC from Ethereum to Base — I want to see the bridge tool, expected output, gas cost in USD, and how long it will take.","exampleUseCases":[{"title":"Cheapest bridge for Arbitrum USDC","prompt":"Before I move any funds, find me the cheapest bridge route for sending 500 USDC from Arbitrum to Optimism — show me the recommended bridge tool, total fees in USD, expected output, and how long the transfer will take."},{"title":"Pre-sign cross-chain ETH transfer check","prompt":"I want to bridge 2 ETH from Ethereum to Base but don't want to sign anything yet — can you pull the best route, break down the gas and bridge fees in USD, and tell me the estimated arrival time so I can decide if it's worth it?"},{"title":"Validate bridge calldata before execution","prompt":"I'm about to bridge 10,000 USDC from Ethereum to Arbitrum — before I sign, get me the executable calldata, a full fee breakdown, the expected output amount, and confirm which bridge tool you're recommending so I can review everything first."}],"resultDescription":"Returns the recommended bridge tool (e.g. Across), source and destination chain/token, fee in USD, gas cost in USD, estimated output amount in token units and USD, ordered execution steps, and ETA in seconds for the bridge to complete.","failureModes":["Unsupported chain pair — bridge route not available between specified chains","Token not supported on destination chain","Amount too small to cover bridge fees, returning error or zero estimated output","Bridge liquidity insufficient for requested amount","Invalid chain identifier provided in request body","Service temporarily unavailable due to upstream bridge API outage"],"whenToPreferThis":"Use this endpoint when an autonomous agent needs to verify a cross-chain bridge route and get accurate fee/gas estimates before signing any transaction. Ideal for pre-trade safety checks on EVM chains (Ethereum, Base, Arbitrum, Optimism) where you want executable calldata and cost breakdown without committing funds.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T00:37:37.186Z","isFirstParty":false}