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List

Most reliable x402 routing APIs

21 x402 routing APIs catalogued, ranked by measured uptime. Updated September 27, 2026. Few scored providers so far — this ranking firms up as more data arrives.

Top pick90Scout100% uptime · from $0.005 – $1/call
BestCheapestMost reliable
#API
1$8.26947▼ 42.9%$0.005 – $192751 ms90
2$0.2222▼ 100.0%$0.004 – $0.117203 ms71
3——$0.011197 ms—
4———1739 ms—
5——$0.005129 ms—
6——$0.0051180 ms—
7——$0.001133 ms—
8——$0.0121080 ms—
9——$0.0001 – $10241746 ms—
10——$0.0011411 ms—
11——$0.001 – $0.0537347 ms—
12——$0.011448 ms—
13——$0.001 – $0.0055578 ms—
14——$0.0005 – $49227181 ms—
15——$0.0051195 ms—
16——$0.001133 ms—
17——$0.005 – $0.0111——
18——$0.001 – $0.124——
19——$0.005 – $0.01360 ms—
20——$0.005 – $0.01235 ms—
21——$0.003 – $101241 ms—

FAQ

What is the cheapest x402 routing API?
gpt55.558686.xyz — from $0.0001 – $10 per call.
Which x402 routing API is the most reliable?
Scout, at 100% measured uptime.
What is the best x402 routing API right now?
Scout, with the highest 402radar Trust score (90).
How are these x402 routing APIs ranked?
By 402radar Trust — a composite of measured uptime, success rate, /quote latency and price, computed on real traffic and refreshed hourly.