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List

Best x402 verification APIs

24 x402 verification APIs catalogued, ranked by Trust score (uptime, success rate, latency and price, on real traffic). Updated September 20, 2026.

Top pick78Mru-oracle100% uptime · from $0.001 – $0.015/call
BestCheapestMost reliable
#API
1$0.1580▼ 100.0%$0.001 – $0.01528194 ms78
2$4.5150▼ 20.0%$0.001 – $15124 ms71
3$0.1315▼ 100.0%$0.005 – $0.153526 ms69
4$669.01*33,435+▼ 4.3%$0.001 – $0.123—55
5$0.06*3$0.005 – $0.023182 ms—
6——$0.05 – $0.39202 ms—
7——$0.001 – $0.005549 ms—
8——$0.01194 ms—
9——$0.0011128 ms—
10——$0.0001 – $10238760 ms—
11——$0.01196 ms—
12——$0.0011139 ms—
13——$0.0052212 ms—
14——$0.01196 ms—
15——$0.1 – $1.55112 ms—
16——$0.005 – $0.012106 ms—
17——$0.001 – $0.01594 ms—
18——$0.00110——
19——$0.001 – $0.05373104 ms—
20——$0.01196 ms—
21——$0.0005 – $49227210 ms—
22——$0.01195 ms—
23——$0.005 – $0.0217152 ms—
24——$0.00005 – $0.00527——

FAQ

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