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Cheapest x402 On-chain Data APIs

86 x402 On-chain Data APIs catalogued, ranked by price per call (cheapest first). Updated June 23, 2026.

Top pick61Netprotocol79% uptime · from $5/call
BestCheapestMost reliableAll On-chain Data
# API
1 $5.60* 6.7% 3 $5 2 154 ms 61
2 $7.00* 7 0.0% $1 – $50 6 222 ms 65
3 $1 1 22 ms
4 $3.00* 3 $1 2 58 ms 55
5 $7.00* 7 0.0% $1 2 154 ms 65
6 $1 4 54 ms
7 $1.30* 96.6% 1 $0.65 1 321 ms 55
8 $0.106242 – $1 25 141 ms
9 $10.70* 99.8% 36 50.0% $0.1 – $0.5 5 146 ms 68
10 $0.1 1 387 ms
11 $0.1 3 22 ms
12 $0.1 1 2639 ms
13 $0.1 84 507 ms
14 $8.00* 700.0% 17 100.0% $0.1 – $1 4 250 ms 70
15 $0.08 1 314 ms
16 $0.10* 33.3% 2 $0.05 2 484 ms 59
17 $0.30 4 100.0% $0.05 – $0.1 4 37 ms 62
18 $0.05 – $0.75 9 172 ms
19 $441.45 50.2% 5,212 30.4% $0.05 – $0.2 7 145 ms 80
20 $0.03 – $0.15 6 347 ms
21 $0.96 84.7% 14 $0.03 1 154 ms 67
22 $0.28* 8 100.0% $0.02 – $0.05 2 157 ms 66
23 $0.97* 17 100.0% $0.02 – $0.1 3 180 ms 70
24 $0.02 – $0.1 2 27 ms
25 $3.65* 106.2% 55 75.0% $0.02 – $0.2 4 198 ms 76
26 $95.24* 482.2% 604 64.0% $0.02 – $2 39 269 ms 85
27 $0.26* 86.2% 4 $0.02 – $0.5 6 31 ms 62
28 $0.016025 2 341 ms
29 $0.71* 12.3% 276 69.4% $0.01 1 129 ms 84
30 $5.22* 61.9% 175 $0.01 – $0.5 107 180 ms 76
31 $0.01 1 20 ms
32 $142.39 34.5% 1,086 42.0% $0.01 – $2 56 91 ms 78
33 $1.21* 81.3% 17 0.0% $0.01 6 156 ms 70
34 $106.29 7.5% 4,691 43.2% $0.01 – $7.5 123 161 ms 82
35 $0.01 – $1 3 25 ms
36 $0.01 1 298 ms
37 $0.01 1 148 ms
38 $0.01 4 25 ms
39 $0.01 – $0.03 16 214 ms
40 $0.14* 600.0% 14 100.0% $0.01 – $0.02 4 287 ms 69
41 $0.12 63.6% 9 100.0% $0.01 – $0.025 6 99 ms 66
42 $0.01 8 161 ms
43 $0.01 1 1738 ms
44 $0.01 1 124 ms
45 $0.26* 999.0% 26 33.3% $0.01 10 100 ms 72
46 $0.09* 9 $0.01 2 156 ms 66
47 $0.01 – $0.15 6 48 ms
48 $18.50 58.8% 28 $0.01 – $1.15 102 262 ms 49
49 $0.03 66.7% 3 100.0% $0.01 2 187 ms 61
50 $0.005 – $0.02 4 51 ms
86 rows · page 1/2

FAQ

What is the cheapest x402 On-chain Data API?
Codex — from $0.001 – $0.01 per call.
Which x402 On-chain Data API is the most reliable?
api.mnemospark.ai, at 100% measured uptime.
What is the best x402 On-chain Data API right now?
Netprotocol, with the highest 402radar Trust score (61).
How are these x402 On-chain Data APIs ranked?
By 402radar Trust — a composite of measured uptime, success rate, /quote latency and price, computed on real traffic and refreshed hourly.