x402 seller due diligence: everything in x402-preflight PLUS on-chain proof of r...
https://minty-sprout.onrender.com/v1/x402-due-diligenceOverview
x402 seller due diligence: everything in x402-preflight PLUS on-chain proof of real demand (USDC actually received by the seller's payTo in the last 24h: payments, distinct payers, volume) and a Bazaar listing-truth audit (is this URL listed, does the listed price match what it charges). Reveals dead, fake or mispriced sellers before payment.
Protocol
x402 (POST)
Price
$0.01
Payment Asset
USD Coin
Payment Network
eip155:8453
Category
uncategorized
Provider
Foundry
Source
bazaar
Indexed
2026-10-31 17:36:51
Health
Status
unknown
Latency (p50)
—
Uptime (30d)
—
Reliability Score
—
Last Checked
Never
Last Healthy
Never
Consecutive Failures
0
x402 Payment Validation
Payment Requirements
—
Asset Verified
—
Facilitator
—
Input Schema
{
"body": {
"input": "https://x402-preflight.nextill-pos.workers.dev/v1/preflight"
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Output Schema
{
"example": {
"bazaar_extension": true,
"issues": [],
"latency_ms": 1001,
"method": "GET",
"options": [
{
"asset_symbol": "USDC",
"issues": [],
"network": "eip155:8453",
"pay_to": "0xB3cDDccEe6B150c8efFD55B961afc0Ecefe7f247",
"price_usd": 0.003,
"scheme": "exact",
"verdict": "ok"
}
],
"seller": {
"bazaar": {
"checked": true,
"listed_price_usd": 0.003,
"price_matches_listing": true,
"this_url_listed": true
},
"issues": [],
"network": "eip155:8453",
"onchain": {
"distinct_payers": 8,
"pay_to_is_contract": false,
"payments": 34,
"usdc_received": 6.18,
"window_hours": 24
},
"pay_to": "0xB3cDDccEe6B150c8efFD55B961afc0Ecefe7f247"
},
"status": 402,
"url": "https://x402-preflight.nextill-pos.workers.dev/v1/preflight",
"verdict": "ok",
"x402_version": 2
},
"type": "json"
}