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Best x402 validation APIs

14 x402 validation APIs catalogued, ranked by Trust score (uptime, success rate, latency and price, on real traffic). Updated November 4, 2026.

Top pick94glim.sh100% uptime · from $0.001 – $0.06/call
BestCheapestMost reliable
#API
1$27.327,889▲ 41.5%$0.001 – $0.068118 ms94
2$15.25*133▲ 100.0%$0.0001 – $1024153 ms80
3$0.018▲ 0.0%$0.001 – $0.01528247 ms66
4——$0.0005 – $49227206 ms—
5——$0.001 – $0.0537353 ms—
6——$0.00005 – $0.00527——
7——$0.001 – $0.005573 ms—
8——$0.0011——
9——$0.05 – $0.39——
10——$0.00110309 ms—
11——$0.0011122 ms—
12——$0.0031——
13——$0.005 – $0.153523 ms—
14——$0.011——

FAQ

What is the cheapest x402 validation API?
Notify — from $0.00005 – $0.005 per call.
Which x402 validation API is the most reliable?
glim.sh, at 100% measured uptime.
What is the best x402 validation API right now?
glim.sh, with the highest 402radar Trust score (94).
How are these x402 validation APIs ranked?
By 402radar Trust — a composite of measured uptime, success rate, /quote latency and price, computed on real traffic and refreshed hourly.