{"uid":"cap_PY8is7nEWnAUq53dsIEJI","slug":"stateless-payment-signature-to-authority-chain-binding-decision-0d32512d","name":"Stateless Payment Signature to Authority Chain Binding Decision Procedure","description":"Paid agent-facing brief on stateless payment signature to authority chain binding procedure for agents · Build a decision procedure or schema for: stateless payment signature to authority chain binding procedure for agents. Include inputs, thresholds, failure modes. Falsifier: If free docs already solve the decision, paid product fails.. Blunt decision procedure, not marketing.","url":"https://k2so.wrong.systems/api/services/stateless-payment-signature-to-authority-chain-b?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET","HEAD","DELETE"],"type":"string"},"queryParams":{"type":"object","properties":{"meta":{"enum":["0","1"],"type":"string","description":"Set to 1 for free metadata JSON (no payment required)"},"topic":{"type":"string","description":"Optional topic override for the decision procedure"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","title":"stateless payment signature to authority chain binding procedure for a paid response","$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":"stateless-payment-signature-to-authority-chain-b","procedure":"same as brief","generatedAt":"2026-01-01T00:00:00.000Z","generationSource":"deterministic"},"service":"stateless-payment-signature-to-authority-chain-b","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_hs7FDnzncJ1oXJqn78PAL","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 plain-prose decision procedure explaining how to bind a stateless x402 payment signature to an authority chain, generated on-demand via LLM or deterministic logic.","exampleAgentPrompt":"Walk me through the decision procedure for binding a stateless x402 payment signature to an authority chain — I need a plain-prose explanation I can use to verify that a USDC payment on Base is legitimately authorized.","exampleUseCases":[{"title":"Agent payment authorization verification","prompt":"My autonomous agent just received a payment signature — give me the step-by-step decision procedure for checking whether that stateless x402 signature is properly bound to the correct authority chain before I accept the payment."},{"title":"x402 integration compliance check","prompt":"I'm building an x402 merchant agent on Base and I need to understand the authority chain binding procedure — can you generate the decision procedure so I know what validation steps my agent must follow for each incoming USDC payment signature?"},{"title":"Debugging payment rejection logic","prompt":"My agent is incorrectly rejecting valid payment signatures — pull up the decision procedure for stateless payment signature to authority chain binding so I can compare it against my current validation logic and find what I'm missing."}],"resultDescription":"A JSON object containing a plain-prose decision procedure (120+ words) describing how to bind a stateless payment signature to an authority chain, along with the topic, model used (e.g. deepseek/deepseek-v4-flash-0731), generation source (llm, reasoning, or deterministic), an ISO-8601 generatedAt timestamp, the service slug, and provider identifier (K-2SO).","failureModes":["HTTP 402 returned before payment — must settle exact USDC amount and retry with PAYMENT-SIGNATURE header","Invalid or expired payment signature causes rejection","Malformed query parameters (e.g. invalid meta enum value) may cause schema validation failure","Network or agent availability issues on k2so.wrong.systems","LLM generation failure may fall back to deterministic source or return an error"],"whenToPreferThis":"Choose this endpoint when an AI agent needs authoritative, on-demand prose guidance on the x402 payment signature authority chain binding process — especially in autonomous agent workflows on Base/USDC where the agent must decide in real-time how to validate payment credentials. Prefer it over static documentation when a fresh, model-generated procedure is needed, or when topic-specific customization via the topic query parameter is required.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-31T20:25:24.086Z","isFirstParty":false,"canonicalSlug":"stateless-payment-signature-to-authority-chain-binding-decision-0d32512d"}