x402radar
List

Most reliable x402 Commerce APIs

4 x402 Commerce APIs catalogued, ranked by measured uptime. Updated June 17, 2026.

Top pick63Underground80% uptime · from $0.01 – $4.99/call
BestCheapestMost reliableAll Commerce →
#API
16380%92 ms$0.01 – $4.9926$52.7836Payments per day, last 7 days
27468%112 ms$0.01 – $0.134$5.68*60Payments per day, last 7 days
37155%129 ms$10001$528.1k*4,308Payments per day, last 7 days
45555%344 ms$0.005 – $0.012——

FAQ

What is the cheapest x402 Commerce API?
E-commerce Price Monitor — from $0.005 – $0.01 per call.
Which x402 Commerce API is the most reliable?
Underground, at 80% measured uptime.
What is the best x402 Commerce API right now?
Underground, with the highest x402radar Trust score (63).
How are these x402 Commerce APIs ranked?
By x402radar Trust — a composite of measured uptime, success rate, /quote latency and price, computed on real traffic and refreshed hourly.