{"uid":"cap_mR1xRhNjpE7UISTntUr8c","slug":"basebuilder-defi-bridge-routes-9fa06883","name":"BaseBuilder DeFi Bridge Routes","description":"BaseBuilder Defi API hub - 22 paid endpoints","url":"https://bb-defi.vercel.app/api/bridge/routes","method":"POST","headers":{},"bodySchema":null,"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.168858","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":"$0.168858/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.168858","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.168858","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_G64_fBaoU3wKfRkw83XKS","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.168858","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns available cross-chain bridge routes for token transfers between blockchain networks","exampleAgentPrompt":"Find me all available bridge routes to move 100 USDC from Ethereum mainnet to Base, and show me the estimated fees and transfer times for each option.","exampleUseCases":null,"resultDescription":"A list of available bridge routes matching the specified source chain, destination chain, token, and amount — including protocol names, estimated output amounts, fees, and expected transfer durations.","failureModes":["Unsupported chain pair returns empty routes or error","Invalid token address returns 400 bad request","No liquidity available on requested route","Payment of ~$0.17 USDC required per call via x402 protocol or 402 error returned","Amount too small or too large for available bridges"],"whenToPreferThis":"Use this endpoint when you need to discover available cross-chain bridge routes before executing a transfer, especially in the Base ecosystem. Prefer this over generic DEX aggregators when the user needs to move tokens between L1/L2 networks rather than swap on a single chain.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T00:40:34.927Z","isFirstParty":false}