{"uid":"cap_YeQC-UJx2KdYIBe7RDajC","slug":"cross-chain-bridge-route-9ab76dba","name":"Cross-Chain Bridge Route","description":"Agents bridge across chains and get it wrong — bad route, an untrusted bridge, fees that eat the transfer. Returns the best cross-chain route via the LiFi aggregator: which bridge, how much arrives, est. time, gas + bridge fees in USD, and the ready-to-send tx. Chains: ethereum, base, arbitrum, optimism, polygon. Tokens by symbol (USDC/USDT/ETH/WETH/DAI) or a 0x address + amountUnits. A quote — re-quote with your own sender before executing; we never hold keys. Not financial advice.","url":"https://402.com.tr/api/x402/bridge-route?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"pathParams":{"type":"object"},"queryParams":{"type":"object","required":["from","to","amount"],"properties":{"to":{"type":"string","description":"To chain"},"from":{"type":"string","description":"From chain"},"token":{"type":"string","description":"Token symbol (default USDC)"},"amount":{"type":"string","description":"Amount to bridge"},"fromAddress":{"type":"string","description":"Your wallet (optional, for a ready tx)"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.02","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","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":"$0.02/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_B9OkCnlbszKQgDXKahuuO","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.02","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns the best cross-chain token bridge route via LiFi aggregator, including which bridge to use, estimated received amount, transfer time, fees, and a ready-to-send transaction.","exampleAgentPrompt":"What's the best route to bridge 500 USDC from Ethereum to Arbitrum? Give me the fees, estimated arrival amount, and a ready-to-send transaction using my wallet 0xAbCd...1234.","exampleUseCases":[{"title":"L2 arbitrage funding top-up","prompt":"I need to move 2000 USDC from my Base wallet to Arbitrum as cheaply as possible — what's the best bridge route, total fees, and how long will it take?"},{"title":"DeFi yield migration","prompt":"I want to bridge 0.5 ETH from Ethereum mainnet to Optimism so I can deploy it in a yield farm there — can you find me the cheapest route with the lowest fees?"},{"title":"Cross-chain gas sourcing","prompt":"I'm nearly out of MATIC on Polygon and want to bridge 100 USDC from Arbitrum over — what's the best route, how much will I actually receive after fees, and can you give me a transaction I can sign?"}],"resultDescription":"Returns the optimal bridge route including: the recommended bridge protocol (via LiFi aggregation), estimated amount received on the destination chain, estimated transfer time, gas fees and bridge fees in USD, and a ready-to-send transaction object. This is a quote only — the caller must re-quote with their own sender address before executing.","failureModes":["Unsupported chain pair — only ethereum, base, arbitrum, optimism, polygon are supported","Unsupported token symbol — only USDC, USDT, ETH, WETH, DAI or valid 0x contract addresses accepted","Amount too small — may fail if below minimum bridge threshold for the selected route","No route found — LiFi aggregator finds no viable bridge path for the given pair and amount","Missing required parameters (from, to, amount) — returns 400 error","Stale quote — fees/amounts may change between quote and execution; always re-quote before sending"],"whenToPreferThis":"Use this endpoint when an agent needs to route a cross-chain token transfer across Ethereum, Base, Arbitrum, Optimism, or Polygon and wants a single aggregated best-route answer (bridge selection, fees, received amount, and a ready transaction) rather than querying multiple bridge UIs manually. Prefer this over generic DeFi routing when the goal is specifically cross-chain bridging, not same-chain swaps.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-12T18:45:34.453Z","isFirstParty":false,"canonicalSlug":"cross-chain-bridge-route-9ab76dba"}