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xx402 X402 Preflight Resource Checker
x402
xx402 X402 Preflight Resource Checker is a paid API for AI agents from x402.xx402.icu, paid per call via x402, $0.01/call, status down (last checked 2026-10-27).
Probes an x402-gated API endpoint to assess payment requirements, safety, and purchase viability before committing funds
Price / call$0.01
Success—
StatusDown
How this service works
Paid Base token, wallet, DeFi, chain-read, x402 buyer/seller discovery, and specialized Bitcoin 15-minute Up/Down prediction-market data packets for autonomous agents and risk tools.
Output
Returns a structured JSON object with a pay/no-pay verdict, payment trap checklist, preflight decision, payment safety checks, provider trust assessment, risk breakdown, budget check, buyer next action instructions, failure risks, retry plan, and source metadata — giving an agent a complete go/no-go decision before committing payment.
Example use cases
Safety check before DeFi data purchase
“My agent wants to call a paid DeFi risk feed at https://x402.xx402.icu/api/base-actionable-risk-feed but I want to verify it's not a payment trap before spending any USDC — can you preflight it with a max budget of $0.03 and tell me if it's safe to buy?”
Autonomous agent budget guard
“Before my trading bot pays for any x402 resource, run a preflight check on https://x402.xx402.icu/api/base-actionable-risk-feed?query=virtual,base and flag it if the price exceeds $0.05 USDC or if it's missing bazaar metadata on Base mainnet.”
Discover x402 payment terms for a new endpoint
“I found a new x402-gated API at https://x402.xx402.icu/api/base-actionable-risk-feed — can you probe it to tell me what payment asset and network it requires, whether it passes safety checks, and what my next action should be if I want to buy it?”
Technical details
Endpoint
GEThttps://x402.xx402.icu/api/x402-resource-preflight?utm_source=zero.xyzWhen to prefer
Use this endpoint when an AI agent or autonomous system needs to safely evaluate an x402-gated resource before spending USDC — especially to detect payment traps, verify provider trust, confirm payment asset/network match, and get a structured buy/no-buy decision. Prefer this over blindly attempting payment when operating with budget constraints or when dealing with unfamiliar x402 providers.
Side effects
- Target URL is local, private, or credentialed — blocked by the endpoint
- Target resource returns unexpected non-402 response — inconclusive preflight
- Price exceeds max_price_usdc threshold — returns do-not-buy verdict
- Missing bazaar metadata when require_bazaar_metadata is true — flagged for review
- Network mismatch between actual and expected CAIP-2 network — safety check failure
- Target URL is unreachable or times out — failure risk flagged
Output
Schema · Response
{
"keys": [
"summary",
"pay_no_pay_verdict",
"payment_trap_checklist",
"purchase_acceptance",
"buyer_next_action",
"next_paid_call",
"decision_evidence",
"repeat_purchase_guard",
"preflight_decision",
"payment_safety_checks",
"priority_queue",
"risk_breakdown",
"review_queue",
"avoid_queue",
"bucket_counts",
"next_products",
"payment_terms",
"resource_metadata",
"budget_check",
"provider_trust",
"failure_risks",
"buyer_retry_plan",
"source_status",
"sources"
],
"type": "json"
}Tags
x402
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