Best x402 validation APIs

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

#	API	Volume 30d↕	Payments 30d↕	Price / call↕	Endpoints↕	Latency↕	Trust↕
1	glim.sh glim.sh Solana Web Search	$1.05	206 ▼ 80.4%	$0.001 – $0.015	73	32 ms	83
2	GPT-5.5 Compact Chat x402 gpt55.558686.xyz Base LLM Inference	$0.28*	133 ▼ 50.0%	$0.0001 – $0.066667	120	700 ms	80
3	Mru-oracle mru-oracle.com Base Weather	$0.19	109 ▲ 100.0%	$0.001 – $0.015	28	358 ms	79
4	AgentHub Attest 3dprintedcat.com Base Other	$1.96	65 ▼ 40.0%	$0.001 – $0.005	5	745 ms	77
5	Tooloracle tooloracle.io Base Geo & Transit	$1.15	39 ▲ 60.0%	$0.005 – $0.15	34	21 ms	74
6	Notify notify.melis.ai Base Data Enrichment	$0.16	32 ▼ 33.3%	$0.00005 – $0.005	26	90 ms	73
7	Autonomagic - hash 3000-c905553a9700f51123f091260a9b8400.life.conway.tech Base Other	—	—	$0.001	10	373 ms	—
8	x402 Adresses FR x402-adresses.suretat.com Base LLM Inference	—	—	$0.001	1	133 ms	—
9	EruditePay Tron Analytics bridge.eruditepay.com Base Other	—	—	$0.001 – $0.05	373	33 ms	—
10	json-schema.org/draft/2020-12/schema json-schema.org Base LLM Inference	—	—	$0.01	1	58 ms	—
11	OptimEngine optim-x402-gateway-production.up.railway.app Base Other	—	—	$0.05 – $0.3	9	341 ms	—
12	x402 Scout Relay x402-scout-relay.onrender.com Base LLM Inference	—	—	$0.003	1	233 ms	—
13	x402 IBAN Validator x402-iban.suretat.com Base Finance & FX	—	—	$0.001	1	104 ms	—
14	X402-scoutgate x402-scoutgate.onrender.com Base Weather	—	—	$0.0005 – $49	227	194 ms	—