Overview
Use when an agent is about to pay an unknown x402 endpoint and needs a cheap safety gate. Input: url (https x402 resource), method, optional max_price_usd. Output: JSON verdict ALLOW/WARN/DENY with reasons: live quote now, price vs similar routes and your budget, payTo on the OFAC list, price change vs our last measurement, our 7-day uptime/p95, ERC-8004 registration. Never pays; cached 60 s. Example: ?url=https://1gateway.dev/v1/fx/rates&max_price_usd=0.01
Protocol
x402
Price
$0.0020
Payment Asset
USD Coin
Payment Network
eip155:8453
Category
uncategorized
Provider
x402 Payment Preflight
Indexed
2026-10-31 11:36:12
Health
Status
unknown
Latency (p50)
—
Uptime (30d)
—
Reliability Score
—
Last Checked
Never
Last Healthy
Never
Consecutive Failures
0
Input Schema
{
"method": "GET",
"queryParams": {
"max_price_usd": 0.01,
"method": "GET",
"url": "https://1gateway.dev/v1/fx/rates"
},
"type": "http"
}
Output Schema
{
"example": {
"checkedAt": "2026-10-31T08:00:00.000Z",
"market": {
"medianUsd": 0.005,
"similarRoutes": 6
},
"measured": null,
"method": "GET",
"notes": [
"One unpaid request was sent (no payment header); nothing was paid."
],
"quote": {
"networks": [
"eip155:8453"
],
"payTo": [
"0x6246eee0355Dd7A93C888fE59e1151388A0cC5a1"
],
"priceUsd": 0.002
},
"reasons": [
{
"code": "live_quote",
"level": "ok",
"message": "Live x402 quote in 0 ms"
}
],
"url": "https://1gateway.dev/v1/time/convert",
"verdict": "ALLOW"
},
"type": "json"
}