{"uid":"cap_o2kiVZNgOly75osbWBw8q","slug":"x402-broker-mpp-paywall-verifier-21b71903","name":"X402-BROKER MPP Paywall Verifier","description":"Universal B2A/A2A/MCP Meta-Router & Autonomous Tool Marketplace indexing 7,340+ live capabilities across x402 v2 (5-chain EVM USDC), IETF MPP, and L402 with TDQS quality scoring and zero-fee pass-through execution.","url":"https://x402broker.com/v1/x402-mpp-paywall-verifier?utm_source=zero.xyz","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","POST"],"type":"string"},"queryParams":{"type":"object","properties":{"url":{"type":"string"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"data":{},"status":"ok","roi_proof":{"compression_ratio_pct":91.4}}},"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_ItD5nO57ZI5B7KB7jVTnW","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":"Verifies and resolves x402/IETF MPP paywall-protected URLs, confirming payment requirements and access conditions for a given HTTP endpoint.","exampleAgentPrompt":"Can you check whether https://api.example.com/data requires an x402 or MPP paywall payment before I try to call it — use a GET request and tell me what payment conditions it returns?","exampleUseCases":[{"title":"Pre-flight paywall check for agent","prompt":"Before my agent tries to fetch data from https://api.newsservice.com/premium/headlines, can you verify whether it's behind an x402 paywall and what USDC amount it requires for a GET request?"},{"title":"Validate MPP conditions on unknown API","prompt":"I found this API endpoint https://tools.aimarket.io/summarize — can you probe it with a GET to see if it uses IETF MPP or L402 payment gating and what the access requirements are?"},{"title":"Confirm paywall before automated pipeline","prompt":"Before I wire up my automation to call https://data.chainfeeds.xyz/v2/prices via POST, check if it's an x402-protected endpoint and tell me the payment terms so I know what to budget."}],"resultDescription":"Returns a JSON object with status 'ok', a data object containing paywall verification details and payment requirements, and an roi_proof field showing compression ratio (e.g. 91.4%). Indicates whether the target URL enforces x402/MPP/L402 payment gating and what conditions apply.","failureModes":["Target URL unreachable or returns non-402 status — data field may be empty","Invalid or malformed URL input — schema validation error","Target URL uses unsupported payment protocol — partial or null result","Rate limiting or upstream timeout — delayed or failed response"],"whenToPreferThis":"Use this endpoint when an AI agent needs to programmatically check whether a remote URL enforces x402, IETF MPP, or L402 payment gating before attempting to call it or route a payment. Prefer this over manual inspection when building automated pipelines that conditionally pay for API access or when auditing a marketplace of paywalled tools.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-22T12:40:37.909Z","isFirstParty":false,"canonicalSlug":"x402-broker-mpp-paywall-verifier-21b71903"}