x402 market intelligence over 41k live listings. Free /search, /market, /compare...
https://api.firstmention.uk/s/x402index/verdictOverview
x402 market intelligence over 41k live listings. Free /search, /market, /compare, /gaps, /guide. Paid /verdict ($0.01): vet one endpoint, or send {"resources":[...]} to batch-vet up to 25 worst-first with live diagnosis, demand, price percentile and alternatives.
Protocol
x402 (POST)
Price
$0.01
Payment Asset
USD Coin
Payment Network
eip155:8453
Category
tools/search
Provider
x402index
Source
bazaar
Indexed
2026-10-26 07:15:28
Health
Status
healthy
Latency (p50)
208ms
Uptime (30d)
100.0%
Reliability Score
92/100
Last Checked
2026-10-31 07:15:32
Last Healthy
2026-10-31 07:15:32
Consecutive Failures
0
x402 Payment Validation
Payment Requirements
Valid
Asset Verified
Known USDC
Facilitator
—
Input Schema
{
"body": {
"resources": [
"https://seller-a.example/api",
"https://seller-b.example/quote"
]
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Output Schema
{
"example": {
"count": 2,
"healthy": 1,
"mode": "batch",
"ok": true,
"results": [
{
"diagnosis": {
"issues": [
{
"detail": "HTTP 500 on the paid path",
"fix": "Fix the server error before listing; buyers cannot pay a path that crashes.",
"problem": "server error"
}
],
"ok": false,
"summary": "endpoint returns HTTP 500"
},
"resource": "https://seller-a.example/api",
"score": 15,
"verdict": "unhealthy (HTTP 500)"
},
{
"diagnosis": {
"issues": [],
"ok": true,
"summary": "payment path OK: returns a valid 402 challenge a buyer can pay"
},
"resource": "https://seller-b.example/quote",
"score": 55,
"verdict": "live x402 seller, payment path sane"
}
],
"worst_first": true
},
"type": "json"
}
Recent Health Checks
| Time | Status | HTTP | Latency | Error |
|---|---|---|---|---|
| 2026-10-31 07:15:32 | healthy | 402 | 95ms | |
| 2026-10-31 06:12:40 | healthy | 402 | 415ms | |
| 2026-10-31 05:15:19 | healthy | 402 | 119ms | |
| 2026-10-31 04:11:34 | healthy | 402 | 208ms | |
| 2026-10-31 03:23:18 | healthy | 402 | 194ms | |
| 2026-10-31 02:14:37 | healthy | 402 | 58ms | |
| 2026-10-31 01:14:53 | healthy | 402 | 272ms | |
| 2026-10-31 00:18:36 | healthy | 402 | 286ms | |
| 2026-10-30 23:12:06 | healthy | 402 | 238ms |