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xx402 Base RPC Risk Preflight
x402
xx402 Base RPC Risk Preflight 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).
Performs a risk preflight check on a Base/EVM address, token, and optional transaction hash, returning account state, token state, transfer history, risk flags, and DeFi routing recommendations.
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 JSON object containing a risk summary, bot execution plan, micro check plan, recommended micro calls, low-cost entry pack, upgrade path, RPC preflight decision, account state, token state, transfer window (recent ERC20 transfers), transaction receipt (if tx_hash provided), priority/review/avoid queues, risk breakdown, bucket counts, follow-up routes, next product suggestions, risk flags, source status, and a not-financial-advice disclaimer.
Example use cases
Pre-payment wallet safety check
“Before my agent sends 500 USDC on Base to 0xba76c7ECa175f67cFcE475c09498f840176bf497, can you run a risk preflight on that address using the default USDC token and flag any suspicious activity in the last 600 blocks?”
DeFi spender allowance exposure audit
“I want to check the allowance exposure for spender 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on wallet 0xba76c7ECa175f67cFcE475c09498f840176bf497 on Base — give me the full risk breakdown including any red flags.”
Transaction receipt risk inspection
“Can you inspect Base transaction 0x4a1b2c3d4e5f6789abcdef0123456789abcdef0123456789abcdef0123456789ab and tell me if it succeeded, which addresses were involved, and whether there are any risk flags I should know about?”
Technical details
Endpoint
GEThttps://x402.xx402.icu/api/base-rpc-risk-preflight?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a comprehensive on-chain risk assessment for a Base/EVM address before routing funds, executing a DeFi transaction, or approving a spender — particularly when you want combined account state, token transfer history, allowance checks, and routing recommendations in a single $0.01 call. Prefer this over generic blockchain explorers when you need agent-ready structured risk output with priority/review/avoid queues and follow-up routing suggestions.
Side effects
- Invalid EVM address format returns a validation error
- Invalid or non-existent transaction hash returns empty tx_receipt
- window_blocks outside 50-5000 range rejected with parameter error
- transfer_limit above 20 rejected with parameter error
- Payment not attached or insufficient USDC triggers 402 response
- Base RPC node unavailability may cause partial or empty source_status fields
- Unknown or undeployed token address may return empty token_state
Output
Schema · Response
{
"keys": [
"summary",
"bot_execution_plan",
"micro_check_plan",
"recommended_micro_calls",
"low_cost_entry_pack",
"upgrade_path",
"rpc_preflight_decision",
"account_state",
"token_state",
"transfer_window",
"tx_receipt",
"priority_queue",
"risk_breakdown",
"review_queue",
"avoid_queue",
"bucket_counts",
"follow_up_routes",
"next_products",
"risk_flags",
"source_status",
"sources",
"not_financial_advice"
],
"type": "json"
}Tags
x402
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