Services: —Endpoints: —Facilitators: —Total Volume: —7d Vol: —24h Vol: —
402radar402radar
List

Most reliable x402 research APIs

14 x402 research APIs catalogued, ranked by measured uptime. Updated September 27, 2026.

Top pick75Mru-oracle100% uptime · from $0.001 – $0.015/call
BestCheapestMost reliable
#API
1$0.1045▼ 50.0%$0.001 – $0.01528200 ms75
2$0.2423▼ 80.0%$0.004 – $0.117203 ms71
3——$0.0051280 ms—
4——$0.0121083 ms—
5——$0.0005 – $49227181 ms—
6——$0.012 – $0.1112466 ms—
7——$0.001 – $0.0537338 ms—
8——$0.002224 ms—
9——$0.0011123 ms—
10——$0.001 – $0.002426 ms—
11——$0.0013442 ms—
12$9.41*15▲ 100.0%$0.0001 – $10241746 ms69
13——$0.011——
14——$0.00005 – $0.00527——

FAQ

What is the cheapest x402 research API?
Notify — from $0.00005 – $0.005 per call.
Which x402 research API is the most reliable?
Mru-oracle, at 100% measured uptime.
What is the best x402 research API right now?
Mru-oracle, with the highest 402radar Trust score (75).
How are these x402 research APIs ranked?
By 402radar Trust — a composite of measured uptime, success rate, /quote latency and price, computed on real traffic and refreshed hourly.