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List

Cheapest x402 generation APIs

12 x402 generation APIs catalogued, ranked by price per call (cheapest first). Updated September 27, 2026. Few scored providers so far — this ranking firms up as more data arrives.

Top pick69gpt55.558686.xyz95% uptime · from $0.0001 – $10/call
BestCheapestMost reliable
#API
1——$0.00005 – $0.00527——
2$9.41*15▲ 100.0%$0.0001 – $10241746 ms69
3——$0.0005 – $49227181 ms—
4——$0.0008 – $0.157466 ms—
5$0.024$0.001 – $0.1519488 ms62
6——$0.001 – $0.0537338 ms—
7——$0.001 – $0.01245 ms—
8——$0.002224 ms—
9——$0.005 – $0.0111——
10——$0.01129 ms—
11——$0.011——
12——$0.02 – $0.053810 ms—

FAQ

What is the cheapest x402 generation API?
Notify — from $0.00005 – $0.005 per call.
Which x402 generation API is the most reliable?
X402-scoutgate, at 100% measured uptime.
What is the best x402 generation API right now?
gpt55.558686.xyz, with the highest 402radar Trust score (69).
How are these x402 generation APIs ranked?
By 402radar Trust — a composite of measured uptime, success rate, /quote latency and price, computed on real traffic and refreshed hourly.