{"uid":"cap_ovNP7glmGYt-6Ea4R0Yan","slug":"permit2-approval-friction-explainer-4a971274","name":"Permit2 Approval Friction Explainer","description":"Choose Blockchain Money Map for human-readable public blockchain reports or x402-paid agent API services.","url":"https://api.blockchainmoneymap.com/api/x402/x402-permit2-approval-friction-explainer","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"mode":{"enum":["analyze"]},"facts":{"type":"object","required":["network","token","transfer_method"],"properties":{"token":{"type":"string","maxLength":500},"network":{"type":"string","maxLength":500},"transfer_method":{"type":"string","maxLength":500},"gas_sponsor_present":{"type":"boolean"},"approval_required_present":{"type":"boolean"},"eip3009_supported_present":{"type":"boolean"},"permit2_supported_present":{"type":"boolean"}},"additionalProperties":false},"policy":{"type":"object","additionalProperties":true},"reference_facts":{"type":"object","required":["network","token","transfer_method"],"properties":{"token":{"type":"string","maxLength":500},"network":{"type":"string","maxLength":500},"transfer_method":{"type":"string","maxLength":500},"gas_sponsor_present":{"type":"boolean"},"approval_required_present":{"type":"boolean"},"eip3009_supported_present":{"type":"boolean"},"permit2_supported_present":{"type":"boolean"}},"additionalProperties":false}}},"responseSchema":{"type":"json"},"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_R1_saZwEr1eTQh7njdDIp","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":"Analyzes and explains the user-experience friction introduced by Permit2 approval flows for a given token, network, and transfer method combination on public blockchains.","exampleAgentPrompt":"Can you analyze the Permit2 approval friction for transferring USDC on Base using the permit2 transfer method, where a gas sponsor is present but EIP-3009 is not supported?","exampleUseCases":[{"title":"Diagnosing two-step approval UX in a dapp","prompt":"My users keep dropping off when they hit the token approval step — can you analyze the Permit2 approval friction for USDC on Ethereum using permit2 transfer, with no gas sponsor and approval required, and explain what's causing the friction?"},{"title":"Comparing transfer methods for a payment integration","prompt":"I'm building a payment flow on Base for USDC and want to know which transfer method has less friction — can you compare standard approve-then-transfer against Permit2, assuming a gas sponsor is present and EIP-3009 is supported?"},{"title":"Evaluating gasless transfer UX for a wallet product","prompt":"We're adding gasless transfers to our wallet using Permit2 on Polygon for WETH — can you explain what approval friction our users will experience given that we have a gas sponsor and permit2 is supported but EIP-3009 is not?"}],"resultDescription":"A JSON response containing an explanation of the UX friction introduced by the Permit2 approval flow for the specified token, network, and transfer method. May include friction factors, comparison against reference facts if provided, and policy-driven analysis of approval requirements and signature-based transfer alternatives.","failureModes":["Missing required fields (network, token, transfer_method) returns validation error","Invalid mode value (must be 'analyze') causes rejection","Unknown token or network identifiers may produce incomplete analysis","Conflicting flags (e.g. permit2_supported_present false but transfer_method is permit2) may yield inconsistent output","Payment failure via x402 protocol results in 402 response before analysis is performed"],"whenToPreferThis":"Choose this endpoint when you need a structured, explainable breakdown of why Permit2 approval steps create friction for a specific token-network-transfer combination — especially useful for dapp developers, wallet teams, or payment integrators evaluating which transfer method minimizes user drop-off. Prefer this over generic blockchain explorers when you need UX-oriented friction analysis rather than raw transaction data.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T18:42:37.657Z","isFirstParty":false}