{"uid":"cap_jBxp0mcoqlV65lX4nD0iD","slug":"bridge-routes-api-be67b91f","name":"Bridge Routes API","description":"Find the best cross-chain bridge route (POST variant)","url":"https://bridge-routes.api.klymax402.com/api/route","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"},"queryParams":{"type":"object","required":["fromChain","toChain","token","amount"],"properties":{"token":{"type":"string","description":"Token symbol to bridge (e.g. USDC, USDT, ETH, WETH)"},"amount":{"type":"string","description":"Amount in smallest unit (e.g. 1000000 for 1 USDC with 6 decimals, 1000000000000000000 for 1 ETH)"},"toChain":{"type":"string","description":"Destination chain ID (1=Ethereum, 8453=Base, 42161=Arbitrum, 10=Optimism, 137=Polygon, 56=BSC, 43114=Avalanche)"},"toToken":{"type":"string","description":"Destination token symbol if different from source (optional, defaults to same as token)"},"fromChain":{"type":"string","description":"Source chain ID (1=Ethereum, 8453=Base, 42161=Arbitrum, 10=Optimism, 137=Polygon, 56=BSC, 43114=Avalanche)"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.008","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":"$0.008/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.008","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.008","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_zc29eb4nxUhwNH65Zkm98","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.008","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Find the optimal cross-chain bridge route for transferring tokens between EVM-compatible blockchains","exampleAgentPrompt":"What's the best bridge route to move 1000 USDC (that's 1000000 in smallest units) from Base (chain 8453) to Arbitrum (chain 42161)?","exampleUseCases":[{"title":"Optimize liquidity rebalancing across chains","prompt":"I need to move 50 ETH from Ethereum mainnet to Polygon to use in a liquidity pool there. What's the cheapest and fastest bridge route I should take?"},{"title":"Execute cost-effective multi-chain swap","prompt":"I'm trying to get USDT on Optimism but I only have it on BSC. Find me the best bridge route to move 5000 USDT over, and what fees should I expect to pay?"},{"title":"Large institutional token migration","prompt":"We're transferring 500,000 USDC from Avalanche back to Ethereum for our treasury. What's the optimal bridge path that minimizes slippage and fees for this size of transfer?"}],"resultDescription":"Returns the optimal cross-chain bridge route including recommended bridge provider, estimated fees, expected output amount, and routing details for the specified token transfer between the two chains.","failureModes":["Unsupported chain ID returns error or empty route","Invalid token symbol not supported on specified chain","Amount too small or too large for available bridge liquidity","No available route between specified chain pair for the given token","Missing required query parameters returns validation error"],"whenToPreferThis":"Use this endpoint when an AI agent needs to programmatically determine the best bridge route for a cross-chain token transfer across major EVM networks (Ethereum, Base, Arbitrum, Optimism, Polygon, BSC, Avalanche). Prefer this over manual research when automating DeFi workflows that require moving assets between chains.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T06:39:08.607Z","isFirstParty":false}