{"uid":"cap_0hf9SuAPePgoaeO85Y1LF","slug":"agent-side-deterministic-decision-procedure-for-buying-static-files-e48e005b","name":"Agent-Side Deterministic Decision Procedure for Buying Static Files via x402","description":"Paid agent-facing brief on agent-side deterministic decision procedure for buying static files via x402 (pay per file, one HTTP header, no account) · Build a decision procedure or schema for: agent-side deterministic decision procedure for buying static files via x402 (pay per file, one HTTP header, no account). Include inputs, thresholds, failure modes. Falsifier: If free docs already solve the decision, paid product fails. Blunt decision procedure, not marketing.","url":"https://k2so-8080.on.ascii.dev/api/services/agent-side-deterministic-decision-procedure-for","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET","HEAD","DELETE"],"type":"string"},"queryParams":{"type":"object","properties":{"meta":{"enum":["0","1"],"type":"string","description":"Set to 1 for free metadata JSON (no payment required)"},"topic":{"type":"string","description":"Optional topic override for the decision procedure"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","title":"agent-side deterministic decision procedure for buying static files vi paid response","$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":null,"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":"unknown","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_BiNt8Q_0sWmUuAMgtwmvb","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 paid, structured decision procedure (with inputs, thresholds, and failure modes) for agents to deterministically decide whether and how to buy static files using the x402 pay-per-file protocol","exampleAgentPrompt":"Give me the deterministic decision procedure for buying static files via x402 — I need the full breakdown with inputs, thresholds, and failure modes so my agent knows exactly when to pay and when to abort.","exampleUseCases":[{"title":"Autonomous file-fetch agent gating","prompt":"My agent is about to pay for a static file using x402 — give me the step-by-step decision procedure with inputs and thresholds it should run before approving the payment."},{"title":"Building x402 payment policy schema","prompt":"I'm designing a payment policy schema for my agent fleet. Can you generate the decision procedure for x402 static file purchases, including all failure modes it needs to handle?"},{"title":"Auditing an agent's x402 file-buy logic","prompt":"I want to audit whether my agent's existing x402 file-purchase logic is correct — generate the canonical deterministic decision procedure for buying static files via x402 so I can compare it against our current implementation."}],"resultDescription":"A structured JSON response containing a prose decision procedure ('brief') for agent-side x402 static file purchases, including the topic, service slug, generation source (llm/reasoning/deterministic), generating model, and ISO-8601 timestamp. The procedure covers inputs, decision thresholds, and failure modes an agent should apply before paying for a static file via x402.","failureModes":["Free documentation already covers the decision — paid product fails its own falsifier criterion","Payment not processed correctly — 402 response returned without granting access","Invalid HTTP method supplied — only GET, HEAD, DELETE are accepted","Topic override not recognized — procedure may default to generic x402 static file context","Service unavailable or handler error — ok:false returned in result object","Network timeout before LLM/reasoning generation completes"],"whenToPreferThis":"Choose this endpoint when you need a concise, agent-executable decision procedure for x402 pay-per-file purchases and free documentation does not already provide a deterministic schema with explicit thresholds and failure modes. It is especially useful when building automated payment policies, auditing existing agent logic, or bootstrapping a new agent that needs structured x402 buying rules without manual research.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T13:02:10.597Z","isFirstParty":false}