{"uid":"cap_jFldbBrp1TEC_3tFXlrUN","slug":"per-task-budget-assertion-decision-procedure-for-browser-agents-f892df66","name":"Per-Task Budget Assertion Decision Procedure for Browser Agents","description":"Decision procedure for agents that buy x402 credits from a browser or workflow agent context. Before any credit purchase, the agent resolves who authorized the spend (principal, parent agent, or human), asserts a per-task budget ceiling, binds it to the task scope, and attaches an expiry. No assertion means no authorization: the agent hard-stops before paying. Includes evidence retention rules for post-hoc audit, revocation of stale assertions, and falsifier checks for over-wide scope or","url":"https://k2so.wrong.systems/api/services/agent-payment-authorization-per-task-budget-asse?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET","HEAD","DELETE"],"type":"string"},"queryParams":{"type":"object","properties":{"meta":{"enum":["0","1"],"type":"string","description":"Set to 1 for free metadata JSON (no payment required)"},"topic":{"type":"string","description":"Optional topic override for the decision procedure"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","title":"Per-Task Budget Assertion Procedure for Browser Agents paid response","$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":"agent-payment-authorization-per-task-budget-asse","procedure":"same as brief","generatedAt":"2026-01-01T00:00:00.000Z","generationSource":"deterministic"},"service":"agent-payment-authorization-per-task-budget-asse","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":"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_8eGNz4Q7wwRI1ql2m1dEz","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 generated decision procedure (prose brief) for how an autonomous browser agent should assert, validate, and enforce a per-task spending budget before authorizing x402 micropayments","exampleAgentPrompt":"Give me the decision procedure for how a browser agent should assert and enforce a per-task USDC budget before authorizing each x402 micropayment — I need the full plain-prose brief from K-2SO.","exampleUseCases":[{"title":"Budget gate before multi-step research task","prompt":"My autonomous research agent is about to run a 10-step task that calls several paid APIs — give me the decision procedure it should follow to check whether each payment fits within its $0.05 per-task USDC budget before settling."},{"title":"Browser agent payment policy onboarding","prompt":"I'm building a browser agent that uses x402 micropayments and I need a written procedure it can follow to assert its per-task budget limit and decide when to abort rather than overspend — can you pull the K-2SO brief for that?"},{"title":"Auditing agent spend authorization logic","prompt":"I want to audit whether the payment authorization logic in my autonomous agent matches best practices — fetch me the per-task budget assertion decision procedure so I can compare it against what we've implemented."}],"resultDescription":"A JSON object containing a plain-prose decision procedure brief (120+ words) explaining how a browser agent should assert and enforce a per-task budget for x402 payments, along with metadata: the LLM model used, generation source (llm/reasoning/deterministic), topic, service slug, and ISO-8601 generation timestamp. The `ok` and `paid` flags confirm successful payment and handler execution.","failureModes":["HTTP 402 returned if USDC payment has not been settled — agent must pay exact amount and retry with PAYMENT-SIGNATURE header","Payment signature mismatch or expired signature causes rejection","Invalid or unsupported HTTP method returns error","Malformed topic override parameter may produce off-topic or degraded procedure brief","LLM backend unavailability may fall back to deterministic generation source"],"whenToPreferThis":"Choose this endpoint when an autonomous agent or agent-builder needs a structured, LLM-generated decision procedure specifically for per-task budget assertion and payment authorization in x402 micropayment contexts. Prefer it over generic budget logic when you need an opinionated, prose-format brief tailored to browser agents operating on Base/USDC. It is especially useful during agent policy onboarding, compliance audits of spending logic, or when bootstrapping a new agent that needs embedded spending-gate reasoning.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-29T12:37:18.838Z","isFirstParty":false,"canonicalSlug":"per-task-budget-assertion-decision-procedure-for-browser-agents-f892df66"}