x402radar
List

Best x402 validation APIs

15 x402 validation APIs catalogued, ranked by Trust score (uptime, success rate, latency and price, on real traffic). Updated June 17, 2026.

Top pick82glim.sh75% uptime · from $0.001 – $0.015/call
BestCheapestMost reliable
#API
18275%19 ms$0.001 – $0.01548$0.3165Payments per day, last 7 days
27660%652 ms$0.0001 – $0.06666779$0.18*85Payments per day, last 7 days
37152%750 ms$0.001 – $0.0053$7.8060Payments per day, last 7 days
46647%348 ms$0.001 – $0.01519$0.33186
56262%57 ms$0.011——
66161%89 ms$0.0011——
75651%21 ms$0.005 – $0.1516$0.4720Payments per day, last 7 days
85555%214 ms$0.0031——
95252%104 ms$0.0011——
105050%89 ms$0.0005 – $0.0012——
114848%104 ms$0.0011——
124343%320 ms$0.05 – $0.39——
133333%213 ms$0.00110——
1477%22 ms$0.0005 – $49227——
1500%22 ms$0.001 – $0.05373——

FAQ

What is the cheapest x402 validation API?
GPT-5.5 Compact Chat x402 — from $0.0001 – $0.066667 per call.
Which x402 validation API is the most reliable?
glim.sh, at 75% measured uptime.
What is the best x402 validation API right now?
glim.sh, with the highest x402radar Trust score (82).
How are these x402 validation APIs ranked?
By x402radar Trust — a composite of measured uptime, success rate, /quote latency and price, computed on real traffic and refreshed hourly.