{"uid":"cap_ptKm-B1dw6Xdis6Wu0nK7","slug":"httpay-bridge-rates-api-774670fd","name":"HTTPay Bridge Rates API","description":"Compare bridge rates, fees, and speeds across major Base bridges (LI.FI, Stargate, Across, Hop, etc.)","url":"https://httpay.xyz/api/bridge-rates","method":"POST","headers":{},"bodySchema":null,"responseSchema":{"type":"json","example":{"description":"Compare bridge rates, fees, and speeds across major Base bridges (LI.FI, Stargate, Across, Hop, etc.)"}},"example":{"request":{"amount":"100","baseCurrency":"USDC","quoteCurrency":"ETH"},"response":{"meta":{"x402":true,"poweredBy":"Alfred Zhang 🫡"},"tips":["For small amounts (<$500): Stargate or Across are fastest and cheapest","For large amounts (>$10K): Use official Base bridge or get multiple quotes","For withdrawals from Base: Official bridge = most secure, but 7-day wait","Always check slippage before bridging — DEX liquidity varies"],"query":{"to":"base","from":"ethereum","amount":"100 USDC"},"updatedAt":"2026-06-12T04:38:42.916Z","dataSource":"LI.FI API + curated bridge directory","liveQuotes":[{"name":"across (via LI.FI)","route":"across","slippage":"0.26%","toAmount":"99.74 USDC","fromAmount":"100 USDC","gasCostUSD":"$0.11","totalCostUSD":"$0.37","protocolFeeUSD":"$0.26","estimatedTimeDisplay":"~1 min","estimatedTimeSeconds":2}],"recommendation":"Best live quote: across (via LI.FI) at $0.37 total cost, ~1 min","bridgeDirectory":[{"url":"https://bridge.base.org","name":"Base Official Bridge (Superchain)","note":"Withdrawals to L1 require 7-day challenge period for security","type":"Official OP Stack","fromBaseToEth":{"fee":"~$1-3 gas","time":"7 days (challenge period)","security":"Canonical"},"fromEthToBase":{"fee":"~$1-3 gas","time":"~1-5 min","security":"Canonical (most secure)"}},{"fee":"~0.1% + LayerZero messaging fee","url":"https://stargate.finance","name":"Stargate Finance","time":"~1-3 min","type":"LayerZero-powered","security":"High (LayerZero DVN verification)","supportsTokens":["USDC","USDT","ETH"]},{"fee":"~0.04-0.1% + gas","url":"https://across.to","name":"Across Protocol","time":"~1-2 min (instant with LP)","type":"Optimistic rollup bridge","security":"High (UMA oracle verification)","supportsTokens":["USDC","ETH","WBTC","DAI"]},{"fee":"~0.1-0.2% AMM fee","url":"https://hop.exchange","name":"Hop Protocol","time":"~2-5 min","type":"AMM bridge","security":"Medium (Bonder system)","supportsTokens":["USDC","ETH","DAI","MATIC"]},{"fee":"~0.05-0.2%","url":"https://synapseprotocol.com","name":"Synapse Protocol","time":"~1-3 min","type":"Cross-chain AMM","security":"Medium (validator set)","supportsTokens":["USDC","USDT","ETH","nUSD"]}]}},"exampleRequest":{"amount":"100","baseCurrency":"USDC","quoteCurrency":"ETH"},"tags":["x402"],"displayCostAmount":"0.01","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"settled","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_F88OZ74ek4t-BJifAp7-M","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":"Compares cross-chain bridge rates, fees, and speeds across major Base bridges (LI.FI, Stargate, Across, Hop) for a given currency pair and amount","exampleAgentPrompt":"Compare bridge rates and fees for sending 500 USDC from Base to Ethereum mainnet — show me the cheapest and fastest options across all major bridges.","exampleUseCases":null,"resultDescription":"A JSON object listing available bridge providers (LI.FI, Stargate, Across, Hop, etc.) with their respective rates, fees, and estimated transfer speeds for the specified currency pair and amount on Base.","failureModes":["Unsupported currency pair returns empty or error response","Invalid amount format causes 400-level error","Bridge provider APIs temporarily unavailable may return incomplete rate data","Payment of 0.01 USDC via x402 not sent returns 402 Payment Required","Unsupported chain or token combination returns no results"],"whenToPreferThis":"Use this endpoint when you need to compare multiple bridge providers simultaneously for Base-ecosystem token transfers, especially when optimizing for cost or speed. Ideal for DeFi agents that need to route bridge transactions intelligently without managing individual bridge integrations. Pay-per-call model at $0.01 USDC means no subscription overhead.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T18:51:11.455Z","isFirstParty":false}