{"uid":"cap_o1wn5V-jRUB3TSMbHtnvh","slug":"synthex-forge-budget-preflight-check-a35253d7","name":"Synthex Forge Budget Preflight Check","description":"Synthex Forge x402 Receive: 41 paid verification, attestation and governance endpoints (Ed25519 + SHA-256 signed artifacts) plus free verify/public-key/standard sibling routes. Paid routes answer HTTP 402 with an x402 v2 `payment-required` envelope (atomic USDC on Base mainnet, chain ID 8453). Free routes are declared with `security: []` per the x402scan discovery spec.","url":"https://x402.synthexforge.com/v1/budget/preflight?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"policy":{"type":"object"},"agent_id":{"type":"string"},"action_amount_usd":{"type":"number"}}},"responseSchema":{"type":"json","example":{"ok":true}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.25","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":"$0.25/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.25","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.25","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_NDSklFtHFQ3tlBJ289F7A","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.25","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Validates whether an agent action is permitted under a given spending policy before executing a paid operation, returning an approval decision.","exampleAgentPrompt":"Before my agent 'agent-007' spends $0.25 on the next action, can you run a preflight check against our current budget policy to confirm it's authorized?","exampleUseCases":[{"title":"Pre-authorize agent spend before API call","prompt":"My agent 'billing-bot-42' is about to make a $0.50 API call — can you run a budget preflight against our monthly-cap policy to make sure it's allowed before it goes through?"},{"title":"Enforce spending limits for autonomous agents","prompt":"We have a strict $10/day policy for our research agent 'researchr-v2'. Before it spends $1.00 on a verification step, check the preflight to see if that action is within budget."},{"title":"Governance check for multi-agent workflow","prompt":"In our multi-agent setup, agent 'orchestrator-1' wants to approve a $0.25 sub-task payment — run the budget preflight against our enterprise-governance policy so we know if it's compliant before it proceeds."}],"resultDescription":"Returns a JSON object with an 'ok' boolean indicating whether the proposed agent action and amount are permitted under the provided spending policy. A true value means the action is authorized; false means it would violate the budget constraints.","failureModes":["Missing or malformed policy object returns a 4xx validation error","Invalid agent_id format may cause rejection","action_amount_usd exceeding policy limits returns ok: false rather than an error","HTTP 402 payment-required if the $0.25 USDC preflight fee is not satisfied","Network or service unavailability returns 5xx","Expired or revoked policy may return authorization denial"],"whenToPreferThis":"Use this endpoint when you need to gate an agent's spending action against a declarative policy before committing to a paid operation — especially in multi-agent or automated workflow contexts where budget governance and auditability are required. Prefer this over ad-hoc balance checks when you have a structured policy object and need a signed, attestable compliance decision rather than a simple balance lookup.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-22T18:45:22.304Z","isFirstParty":false,"canonicalSlug":"synthex-forge-budget-preflight-check-a35253d7"}