{"uid":"cap_eyGjkSelzkiXj7pxMDli0","slug":"x402-mcp-storefront-base-transaction-decision-68f49380","name":"x402 MCP Storefront – Base Transaction Decision","description":"Should I submit this Base transaction now, and at what fee? One call returns submit-or-wait, max fee per gas and priority fee in gwei (EIP-1559), and the estimated cost in USD for an ETH transfer, USDC ERC-20 transfer, or x402 settlement on Base mainnet. Live gas price and congestion from Base RPC blocks, no API key. For bots that queue transactions: call before every send.","url":"https://x402-mcp.onrender.com/base/tx-decision","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","HEAD","DELETE"],"type":"string"},"queryParams":{"type":"object","properties":{}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"fee":{"max_fee_per_gas_gwei":0.012,"current_base_fee_gwei":0.0055,"max_priority_fee_per_gas_gwei":0.001},"submit":true,"verdict":"SETTLE_NOW","as_of_block":48941850,"recheck_in_s":null,"estimated_cost":{"gas":55000,"usd":0.0011}}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","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":"$0.01/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_xoMky1acgoc_b4dAZ7kg5","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns a submit-or-wait recommendation plus EIP-1559 fee parameters (max fee per gas, priority fee in gwei) and estimated USD cost for ETH transfer, USDC ERC-20 transfer, or x402 settlement on Base mainnet.","exampleAgentPrompt":"Before I send this USDC transfer on Base, should I submit it now or wait — and what are the current EIP-1559 max fee and priority fee in gwei, plus the estimated USD cost?","exampleUseCases":[{"title":"Optimize bot transaction queue timing","prompt":"My bot has a batch of x402 settlements queued up for Base mainnet — should I send them now or hold off, and what EIP-1559 fees and USD cost per settlement should I expect?"},{"title":"Check ETH transfer cost on Base","prompt":"I'm about to send some ETH on Base — is now a good time to submit, and what will the max fee, priority fee, and total USD cost look like?"},{"title":"Real-time Base congestion check","prompt":"Before my agent triggers any transactions, is Base mainnet congested right now, and what are the current recommended gas parameters so I can decide whether to proceed or wait?"}],"resultDescription":"Returns a JSON object containing: a submit-or-wait recommendation, the recommended max fee per gas in gwei, the priority fee (tip) in gwei per EIP-1559, the estimated USD cost for an ETH transfer, USDC ERC-20 transfer, or x402 settlement, and current network congestion/utilization data derived from live Base RPC block data.","failureModes":["Base RPC node unavailable — returns error or stale data","Network congestion spikes between call and transaction submission making advice stale","Rate limiting or timeout from the render.com hosted service","Estimated USD cost may drift if ETH price moves rapidly between call and execution"],"whenToPreferThis":"Use this endpoint when an agent or bot is about to submit a transaction on Base mainnet and needs a real-time go/no-go decision plus accurate EIP-1559 fee parameters, especially for cost-sensitive operations like x402 micropayments, USDC transfers, or ETH sends. Prefer this over generic gas trackers when you need a bundled decision with USD cost estimates specific to Base L2, with no API key required.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T06:34:55.935Z","isFirstParty":false}