{"uid":"cap_58XYHLCdLqTJHs6QsMX8x","slug":"agent-budget-guard-ad326b74","name":"Agent Budget Guard","description":"Enforce declared per-call, task, session and period budgets before execution","url":"https://phion.systems/v1/paid/trust/agent-budget-guard","method":"POST","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema"},"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_er6qtaP0a9zcCtVkFDBVx","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":"Enforce declared per-call, task, session, and period spending budgets before an agent executes a paid action","exampleAgentPrompt":"Before you make any paid tool calls, check that each one stays under $0.01 per call and that the total task budget doesn't exceed $0.50 — block anything that would go over those limits.","exampleUseCases":[{"title":"Cap per-call cost in autonomous pipeline","prompt":"I'm running an autonomous research agent that makes paid API calls — make sure each individual call costs no more than $0.005 and block execution if it would exceed that per-call budget."},{"title":"Enforce session-wide spending ceiling","prompt":"My agent is doing a multi-step data enrichment session — enforce a hard $2.00 session budget and stop it from making any more paid calls once that ceiling is hit."},{"title":"Period budget guard for recurring agent tasks","prompt":"Our agent runs nightly and has a weekly allowance of $10 — check before each execution that the period budget hasn't been exhausted, and block the run if we're over limit."}],"resultDescription":"Returns a decision indicating whether the proposed action is allowed or blocked given the declared budget constraints, along with remaining budget headroom and a reason if the action is rejected due to a budget violation.","failureModes":["Missing or malformed budget declarations result in rejection","Cost estimate not provided prevents enforcement check","Period or session context not supplied leads to incomplete validation","Budget already exhausted returns blocked status with violation detail","Ambiguous budget scope (per-call vs session) may require explicit disambiguation"],"whenToPreferThis":"Use this endpoint when an AI agent is about to execute a paid action and you need a pre-flight enforcement check against one or more declared budget tiers (per-call, task, session, or period). Prefer this over ad-hoc cost checks when you need structured, policy-driven enforcement that can block execution before any payment is attempted, especially in agentic workflows where runaway spending is a risk.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T06:30:04.870Z","isFirstParty":false}