{"uid":"cap_W41vYYBaLzdJxE83dk-Yv","slug":"delx-commerce-evm-blob-fee-budget-calculator-a96db1cb","name":"Delx Commerce — EVM Blob Fee Budget Calculator","description":"Pay-per-result APIs for agents. No signup. Exact price. Verifiable delivery. USDC on Base + Solana via x402.","url":"https://commerce.delx.ai/api/v1/x402/evm-blob-fee-budget?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"blob_gas":{"type":"integer","description":"Blob Gas supplied to EVM Blob Fee Budget; used only for this bounded calculation and processed in memory without retention."},"max_fee_per_blob_gas_wei":{"type":"string","maxLength":8192,"description":"Max Fee Per Blob Gas Wei supplied to EVM Blob Fee Budget; used only for this bounded calculation and processed in memory without retention."}}},"responseSchema":{"type":"json","example":{"result":{"blob_fee_ceiling_wei":"262144"},"schema":"delx/util-evm-blob-fee-budget/v1","status":"pass","evidence":{"retained":false,"input_sha256":"452aa5227d3b7d47a78b8729ad6d09af441ba3bf8df5aa35b34a7f7e8c38965f","external_calls":0},"operation":"evm_preflight:evm_blob_fee_budget"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.001","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":"$0.001/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_BdGmtySp2sbz5tPeJ1R-1","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.001","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Computes the maximum blob fee ceiling in wei given blob gas and max fee per blob gas, for EVM transaction preflight estimation.","exampleAgentPrompt":"Calculate the EVM blob fee ceiling for a transaction with 131072 blob gas and a max fee per blob gas of 2 wei — I need the result in wei before I submit.","exampleUseCases":[{"title":"Pre-submit blob transaction cost check","prompt":"Before I broadcast this EIP-4844 transaction, can you calculate the blob fee ceiling in wei? I have 262144 blob gas units and my max fee per blob gas is 1 wei."},{"title":"Agent wallet fee cap validation","prompt":"My agent is about to send a blob transaction with 65536 blob gas and a max fee per blob gas of 4 wei — what's the maximum blob fee it could be charged in wei?"},{"title":"Multi-option blob gas comparison","prompt":"I'm comparing two blob gas configurations: 131072 gas at 2 wei max fee per blob gas. Can you compute the blob fee ceiling in wei so I can decide which is cheaper?"}],"resultDescription":"Returns a JSON object with the computed blob_fee_ceiling_wei value, an operation identifier (evm_preflight:evm_blob_fee_budget), a pass/fail status, and a verifiable evidence block including an input SHA-256 hash confirming no data retention and zero external calls.","failureModes":["Missing or invalid blob_gas integer causes computation error","max_fee_per_blob_gas_wei exceeds maxLength of 8192 characters","Non-numeric string in max_fee_per_blob_gas_wei field returns validation error","Payment not provided or insufficient USDC results in 402 response","Malformed JSON body returns 400 bad request"],"whenToPreferThis":"Use this endpoint when you need a fast, cheap ($0.001 USDC), verifiable, in-memory-only blob fee ceiling calculation for EVM transaction preflight without any data retention — ideal for AI agents needing trustless gas estimation before submitting EIP-4844 blob transactions on Ethereum.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-01T00:53:52.479Z","isFirstParty":false,"canonicalSlug":"delx-commerce-evm-blob-fee-budget-calculator-a96db1cb"}