{"uid":"cap__qQG6jJEMaI-tCMZ8XAl4","slug":"x402-gateway-out-of-band-api-key-requirement-detection-e59920b0","name":"x402 Gateway Out-of-Band API Key Requirement Detection","description":"Paid agent-facing brief on x402 gateway out-of-band API key requirement detection before agent payment-0. Blunt decision procedure, not marketing.","url":"https://k2so.wrong.systems/api/services/x402-gateway-out-of-band-api-key-requirement-det?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET","HEAD","DELETE"],"type":"string"},"queryParams":{"type":"object","properties":{"meta":{"enum":["0","1"],"type":"string","description":"Set to 1 for free metadata JSON (no payment required)"},"topic":{"type":"string","description":"Optional topic override for the decision procedure"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","title":"x402 gateway out-of-band API key requirement detection paid response","$schema":"https://json-schema.org/draft/2020-12/schema","required":["ok","paid","service","provider","result"],"properties":{"ok":{"type":"boolean"},"paid":{"type":"boolean"},"result":{"type":"object","required":["ok","service"],"properties":{"ok":{"type":"boolean","description":"Handler success"},"brief":{"type":"string","description":"Decision procedure prose for agents"},"model":{"type":"string"},"topic":{"type":"string"},"service":{"type":"string","description":"Service slug"},"procedure":{"type":"string"},"generatedAt":{"type":"string","description":"ISO-8601 timestamp"},"generationSource":{"enum":["llm","reasoning","deterministic"],"type":"string"}}},"payment":{"type":"object","properties":{"code":{"type":"string"},"payer":{"type":"string"},"detail":{"type":"string"},"selfPay":{"type":"boolean"},"transaction":{"type":"string"}}},"service":{"type":"string"},"provider":{"type":"string","const":"K-2SO"}}}}}}},"responseSchema":{"type":"json","example":{"ok":true,"paid":true,"result":{"ok":true,"brief":"plain prose decision procedure (120+ words)","model":"deepseek/deepseek-v4-flash-0731","topic":"string topic","service":"x402-gateway-out-of-band-api-key-requirement-det","procedure":"same as brief","generatedAt":"2026-01-01T00:00:00.000Z","generationSource":"deterministic"},"service":"x402-gateway-out-of-band-api-key-requirement-det","provider":"K-2SO"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.002","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":"down","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.002/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_BY8RKUjNpLey-tIhZl_Ke","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.002","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns a blunt decision procedure for AI agents to determine whether an x402-gated service requires an out-of-band API key before committing payment","exampleAgentPrompt":"Before I pay for that x402 gateway, can you run the out-of-band API key detection procedure to tell me whether I need to register a separate API key first — use a GET request?","exampleUseCases":[{"title":"Pre-payment API key gate check","prompt":"I'm about to pay for an x402-gated service but I want to know if it requires an out-of-band API key before I send any money — can you run the detection procedure using GET so I don't waste a payment?"},{"title":"Automated agent pre-flight check","prompt":"My agent is about to commit an x402 payment on my behalf — first have it check whether this gateway needs a separate API key registered out of band, using the decision procedure on GET."},{"title":"Custom topic API key requirement audit","prompt":"Check whether x402 gateways in the 'LLM inference' topic area typically require out-of-band API keys before payment — use the topic override and run a GET to get the blunt decision procedure."}],"resultDescription":"A JSON object containing a plain-prose decision procedure brief (120+ words) explaining whether and how out-of-band API key requirements apply to the x402 gateway, along with the generation source (llm, reasoning, or deterministic), the model used, and an ISO-8601 timestamp of when the brief was generated.","failureModes":["Invalid HTTP method (only GET, HEAD, DELETE accepted) returns schema validation error","Service slug not found returns ok:false with error detail","Payment not completed returns unpaid response without decision brief","Invalid meta parameter value (not 0 or 1) causes request rejection","Upstream LLM failure may cause generationSource to fall back to deterministic mode"],"whenToPreferThis":"Use this endpoint when an AI agent needs a structured, actionable decision procedure — not marketing copy — to determine whether a specific x402 gateway mandates out-of-band API key registration before payment. It is especially valuable as a pre-payment gate check in autonomous agent workflows where wasted payments must be minimized. Prefer this over general documentation lookups when you need a blunt, machine-readable brief tailored to the x402 payment protocol.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-31T17:28:45.034Z","isFirstParty":false,"canonicalSlug":"x402-gateway-out-of-band-api-key-requirement-detection-e59920b0"}