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402radar
List

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.