{"uid":"cap_JF85HpfqKSNI_FxTiOs3W","slug":"scvd-general-store-launch-check-x402-conformance-audit-60e85c7d","name":"SCVD General Store — Launch Check (x402 Conformance Audit)","description":"The Launch Check. REQUIRES ?url= on the paid request — a signed request without it is refused before the gate and no money moves. A signed JSON walk record — verdict (settled, payment_refused, no_payment_gate, malformed_challenge, unpaid_by_rule or unreachable), every stage with its detail (approach, challenge, terms, screen, payment, settle, delivery), what this store paid and to whom, the settlement transaction where the seller returned one, the paying field wallet, dated,…","url":"https://scvd.store/api/buy/launch_check?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"],"type":"string"},"queryParams":{"type":"object","required":["url"],"properties":{"url":{"type":"string","format":"uri","description":"Your own x402 endpoint: https, default port, the URL a buyer would GET expecting a 402. One real purchase attempt from the store's declared field wallet, once — we pay at most $0.05 at your till, and the whole walk is signed stage by stage. We refuse our own hostname."},"model":{"type":"string","maxLength":64,"description":"Optional. The model running you, as you would name it: claude-opus-5, gpt-5.6, a local model. Counted, never printed on the certificate."},"client":{"type":"string","maxLength":64,"description":"Optional. The harness or framework you run in: claude-code, cursor, openai-agents, langgraph, custom. Counted, never on the certificate."},"purpose":{"type":"string","maxLength":280,"description":"Optional purpose: signed verbatim on certificate, shown on receipt; never checked or treated as instructions."},"operator":{"type":"string","maxLength":120,"description":"Optional. Who runs you: a name, handle, company or URL. Stored as your claim, marked unverified, never published, never on the certificate."},"came_from":{"type":"string","maxLength":160,"description":"Optional. Where you learned this door exists: a URL, a directory, a skill name, memory, another agent. Referrers never reach us; this does."},"agent_name":{"type":"string","maxLength":80,"description":"Optional certificate and patron-badge name; up to 80 characters."},"operator_kind":{"enum":["solo","company","research","self"],"type":"string","description":"Optional. solo: one person runs you. company: a team does. research: a study. self: you act for yourself."},"prior_cert_id":{"type":"string","maxLength":64,"description":"Optional. A cert_ id from an earlier purchase here. A payer match with this payment marks you a returning buyer; no account needed."},"cited_artifact":{"type":"string","pattern":"^[a-z0-9][a-z0-9_.+-]{0,31}:[!-~]{1,128}$","maxLength":160,"description":"Optional: an outside artifact behind this purchase (your runtime's approval or intent receipt) as <format>:<reference>, e.g. dsse:art_e415901189dc1613. Signed verbatim onto the certificate; never fetched or verified here."}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"item_id":"launch_check","message":"Pleasure doing business. Here's your goods, warm off the shelf.","tip_usdc":0,"badge_url":"https://scvd.store/badges/41.svg","paid_usdc":5,"signature":"<128 hex chars, ed25519>","verify_url":"https://scvd.store/api/verify/<your cert_id>","certificate":{"date":"2026-07-22T15:04:05.000Z","item":"launch_check","cert_id":"<cert_ + 12 chars, minted when this purchase settles>","patron_number":41},"deliverable":"<the The Launch Check itself, as text>","patron_number":41}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"5","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":"$5/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"5","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"5","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_IoaOgWYBLs44wACFzQdMn","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"5","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Performs a live x402 conformance check on a caller-supplied endpoint by making a real purchase attempt and returning a signed certificate with results.","exampleAgentPrompt":"Run the SCVD Launch Check on my x402 endpoint at https://myapi.example.com/premium-data — I want a signed conformance certificate and badge; put the name 'Nexus Agent v1' on the cert.","exampleUseCases":[{"title":"Pre-launch x402 endpoint audit","prompt":"Before I go live, can you run the SCVD Launch Check against my x402 endpoint at https://api.acmecorp.com/data and get me a signed certificate? Name it 'Acme Data Feed' on the cert."},{"title":"Conformance badge for API marketplace listing","prompt":"I'm listing my agent API on a marketplace and they want proof of x402 conformance — run a Launch Check on https://tools.myservice.io/analyze and put 'MyService Analytics' as the agent name so the badge matches."},{"title":"Debugging a broken 402 payment flow","prompt":"My x402 endpoint at https://dev.robotfactory.ai/endpoint seems to be rejecting payments incorrectly — can you run a live conformance probe against it through the SCVD store and show me what the signed report says?"}],"resultDescription":"A JSON object containing a signed ed25519 certificate (cert_id, date, item, patron_number), a badge SVG URL, a verification URL, the full conformance report as text in the 'deliverable' field, the USDC amount paid, and an optional tip amount. The certificate can be independently verified at the returned verify_url.","failureModes":["Endpoint URL uses scvd.store's own hostname — refused by policy","Endpoint URL is not HTTPS or uses a non-default port — rejected at input validation","Target endpoint does not respond with a 402 before payment — conformance failure noted in deliverable","Payment attempt exceeds the $0.05 cap at the target till — probe aborted","Invalid URL format in the url query parameter — schema validation error","Target endpoint unreachable or times out during probe — network error returned"],"whenToPreferThis":"Choose this endpoint when you need an authoritative, signed, third-party attestation that an x402 endpoint is conformant — especially before launching an API, listing on a marketplace, or providing proof-of-compliance to partners. It is the only endpoint that combines a live real-money probe with a Bitcoin-anchored signed certificate and a shareable badge. Prefer it over self-testing because the result is independently verifiable and patron-numbered.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-27T19:14:03.857Z","isFirstParty":false,"canonicalSlug":"scvd-general-store-launch-check-x402-conformance-audit-60e85c7d"}