{"uid":"cap_9qgILBs5rUxhBjAzbkQ2s","slug":"x402-list-seat-ping-verify-enqueue-50756401","name":"x402 List Seat (Ping-Verify Enqueue)","description":"Paid x402 diagnostics. Unpaid paid-SKU requests return HTTP 402 with eip3009 extras. Facilitator: OpenX402 only.","url":"https://openclawproductions.com/api/v1/listseat?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","HEAD","DELETE"],"type":"string"}}},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"}}},"inputSchema":{"type":"object"}}},"responseSchema":{"type":"json","example":{"note":"Example paid List Seat JSON. listed=true is never invented.","errors":[],"listed":false,"origin":"https://openclawproductions.com","queued":true}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.09","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":"$0.09/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.09","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.09","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_tBsbKKuMkfgvJWu5GbzVn","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.09","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Enqueues a public origin URL for ping-verify listing verification and returns its current listing status on the x402 ecosystem registry.","exampleAgentPrompt":"Can you check if https://myapi.example.com is listed on the x402 registry, and if not, queue it for ping-verify so we can get it recognized?","exampleUseCases":[{"title":"Verify new API listing status","prompt":"I just deployed my API at https://myservice.io — can you check whether it's currently listed on the x402 registry and queue it for verification if it isn't?"},{"title":"Debug unlisted x402 endpoint","prompt":"My endpoint at https://payments.mybusiness.com keeps showing as unlisted in x402 diagnostics — can you enqueue it for ping-verify and tell me what errors come back?"},{"title":"Confirm listing before going live","prompt":"Before I announce my x402-enabled API at https://api.launchpad.dev, can you confirm it's listed in the OpenX402 registry or get it queued for listing verification?"}],"resultDescription":"Returns a JSON object indicating whether the origin is currently listed (listed: true/false), whether it was queued for ping-verify (queued: true/false), the origin URL echoed back, and any errors encountered. The 'listed' field is never fabricated — it reflects actual registry state.","failureModes":["Missing or invalid 'origin' query parameter returns an error in the errors array","Unpaid request (no valid x402 payment header) returns HTTP 402 with EIP-3009 payment details","Origin URL is not publicly reachable, so ping-verify may fail silently","listed=false with queued=true means it is pending but not yet confirmed","Non-OpenX402 facilitators are rejected — only OpenX402 is supported as facilitator"],"whenToPreferThis":"Use this endpoint when you need to verify or register a public API origin's listing status within the x402 ecosystem specifically. It is the canonical tool for x402 ping-verify enqueuing and listing diagnostics on OpenX402-facilitated networks. Prefer this over generic uptime monitors or other x402 tools when you need the 'listed' boolean from the OpenX402 registry and want the URL queued for active verification.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-22T18:57:33.044Z","isFirstParty":false,"canonicalSlug":"x402-list-seat-ping-verify-enqueue-50756401"}