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Best x402 Finance & FX APIs

25 x402 Finance & FX APIs catalogued, ranked by Trust score (uptime, success rate, latency and price, on real traffic). Updated June 22, 2026.

Top pick97x402engine.app100% uptime · from $0.001/call
BestCheapestMost reliableAll Finance & FX
# API
1 $26.96* 52.1% 5,585 14.7% $0.001 1 395 ms 97
2 $190.12* 1,474 17.9% $0.03 – $0.2 13 302 ms 84
3 $3.46 355.3% 710 581.3% $0.001 – $0.01 24 46 ms 81
4 $190.12* 1,474 17.9% $0.08 – $0.15 12 330 ms 81
5 $0.92 999.0% 125 17.6% $0.005 – $0.05 10 2702 ms 80
6 $190.12* 1,474 17.9% $0.1 – $0.25 10 281 ms 80
7 $20.32* 48.2% 156 14.7% $0.01 – $0.75 20 177 ms 78
8 $1.44* 47 100.0% $0.005 – $0.15 29 186 ms 75
9 $1.41* 72 100.0% $0.01 – $0.1 20 64 ms 74
10 $0.11* 36 78.3% $0.01 7 46 ms 74
11 $1.1k* 2.6% 561,670+ 19.1% $0.002 – $0.015375 254 254 ms 73
12 $23.20* 999.0% 39 50.0% $0.1 – $7.5 12 28 ms 72
13 $0.20* 22 89.5% $0.001 4 353 ms 71
14 $140.00* 13.4% 122 133.3% $0.25 – $5 22 174 ms 70
15 $0.10* 0.0% 12 66.7% $0.002 – $0.05 6 143 ms 68
16 $1.00* 2 $0.005 – $0.5 2 50 ms 56
17 1 $0.001 1 171 ms 55
18 $0.02 1 188 ms
19 $0.005 – $0.01 2 345 ms
20 1 269 ms
21 $0.01 2 72 ms
22 $0.01 4 316 ms
23 $0.01 1 57 ms
24 $0.001 1 104 ms
25 $0.005 1 232 ms

FAQ

What is the cheapest x402 Finance & FX API?
x402engine.app — from $0.001 per call.
Which x402 Finance & FX API is the most reliable?
x402engine.app, at 100% measured uptime.
What is the best x402 Finance & FX API right now?
x402engine.app, with the highest 402radar Trust score (97).
How are these x402 Finance & FX APIs ranked?
By 402radar Trust — a composite of measured uptime, success rate, /quote latency and price, computed on real traffic and refreshed hourly.