{"uid":"cap_9Qc0MKkqbEfObD1TA48_G","slug":"54ch10-pre-interact-url-check-stack-purchase-50315060","name":"54ch10 Pre-Interact URL Check — Stack Purchase","description":"54ch10: pre-interact URL check. Paste a link, get brief + domain + page. Taste /v1/open/free. 80 calls for $1. Wire in 30s. Analytics-only tooling. Not financial advice.","url":"https://54ch10.uk/v1/stack","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"q":{"type":"string","description":"Input"}}},"responseSchema":{"type":"json","example":{"ok":true,"note":"Unused credits expire. NOT a vault. Not refundable.","pack":1,"header":"X-54ch10-Stack: abc123","credits":80,"expires":"2026-09-01T00:00:00.000Z","paid_usd":"1.00","ttl_days":7,"disclaimer":"Informational tooling only. Not financial advice. No custody, trading, or token promotion. Scores are imperfect heuristics — verify independently."}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"1","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":"$1/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"1","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"1","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_E9PuiiWKg20J0_tg5PBZU","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"1","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Purchases a $1 USDC credit stack (pack of URL-check credits) that enables subsequent URL analysis calls via the 54ch10 analytics service","exampleAgentPrompt":"Buy me a $1 credit stack on 54ch10 so I can start checking URLs before I interact with them — I want to get the API header and see how many credits I have.","exampleUseCases":[{"title":"Fund URL safety screening workflow","prompt":"I want to set up automated link checking before my agent clicks anything. Buy a $1 credit stack on 54ch10 and give me the API header so I can wire it into my workflow."},{"title":"One-off suspicious link investigation","prompt":"There's a sketchy link someone sent me and I want to run it through 54ch10 first — can you buy me a $1 credit pack so I can get the URL brief and domain info?"},{"title":"Onboard to 54ch10 analytics service","prompt":"I've never used 54ch10 before. Purchase the $1 starter stack for me so I get my API credentials and can start checking URLs right away."}],"resultDescription":"Returns a JSON object confirming the purchase with: a header value (X-54ch10-Stack) to use in subsequent API calls, the number of credits purchased (e.g. 80), the pack count, expiry date (TTL in days), amount paid in USD, and a disclaimer that credits are non-refundable and informational only.","failureModes":["Payment not received or insufficient USDC — no stack issued","Expired or invalid payment token — returns error","Credits from a prior purchase already expired before use — non-refundable","Network timeout during payment processing — transaction may not complete","Duplicate purchase attempts may result in multiple non-refundable stacks"],"whenToPreferThis":"Use this endpoint first, before calling any 54ch10 URL-check endpoint, when you have no active credit stack or your credits have expired. This is the funding/onboarding step — it is not the URL analysis call itself. Prefer this over alternatives if you need pay-per-use, low-commitment access ($1 flat) to URL analytics without a subscription.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T12:31:00.906Z","isFirstParty":false}