Services: —Endpoints: —Facilitators: —Total Volume: —7d Vol: —24h Vol: —
402radar402radar
List

Best x402 monitoring APIs

16 x402 monitoring APIs catalogued, ranked by Trust score (uptime, success rate, latency and price, on real traffic). Updated September 19, 2026. Few scored providers so far — this ranking firms up as more data arrives.

Top pick78Mru-oracle100% uptime · from $0.001 – $0.015/call
BestCheapestMost reliable
#API
1$0.1580▲ 0.0%$0.001 – $0.01528194 ms78
2$671.73*33,570+▼ 6.3%$0.001 – $0.123—55
3$0.06*3▲ 100.0%$0.005 – $0.023184 ms—
4——$0.0051——
5——$0.1 – $1.55114 ms—
6——$0.001 – $0.01594 ms—
7——$0.0001 – $10238766 ms—
8——$0.00513991 ms—
9——$0.011308 ms—
10——$0.003 – $101242 ms—
11—1$0.002 – $0.0152067 ms—
12——$0.0011383 ms—
13——$0.00005 – $0.00527——
14——$0.0051111 ms—
15——$0.001 – $0.05373106 ms—
16——$0.0005 – $49227208 ms—

FAQ

What is the cheapest x402 monitoring API?
Notify — from $0.00005 – $0.005 per call.
Which x402 monitoring API is the most reliable?
Mru-oracle, at 100% measured uptime.
What is the best x402 monitoring API right now?
Mru-oracle, with the highest 402radar Trust score (78).
How are these x402 monitoring APIs ranked?
By 402radar Trust — a composite of measured uptime, success rate, /quote latency and price, computed on real traffic and refreshed hourly.