Best x402 validation APIs

14 x402 validation APIs catalogued, ranked by Trust score (uptime, success rate, latency and price, on real traffic). Updated August 5, 2026.

#	API	Volume 30d↕	Payments 30d↕	Price / call↕	Endpoints↕	Latency↕	Trust↕
1	GPT-5.5 Compact Chat x402 gpt55.558686.xyz Base LLM Inference	$109.49*	9,426 ▼ 63.3%	$0.0001 – $10	226	—	94
2	glim.sh glim.sh Solana Web Search	$1.88	373 ▼ 77.8%	$0.001 – $0.015	73	—	86
3	Mru-oracle mru-oracle.com Base Weather	$0.39	287 ▲ 100.0%	$0.001 – $0.015	28	—	84
4	Tooloracle tooloracle.io Base Geo & Transit	$1.31	47 ▼ 66.7%	$0.005 – $0.15	34	—	75
5	AgentHub Attest 3dprintedcat.com Base Other	$0.09	11 ▼ 100.0%	$0.001 – $0.01	5	—	67
6	Notify notify.melis.ai Base Data Enrichment	$0.09	17	$0.00005 – $0.005	27	—	24
7	EruditePay Tron Analytics bridge.eruditepay.com Base Other	—	—	$0.001 – $0.05	373	—	—
8	Autonomagic - hash 3000-c905553a9700f51123f091260a9b8400.life.conway.tech Base Other	—	—	$0.001	10	—	—
9	x402 Adresses FR x402-adresses.suretat.com Base LLM Inference	—	—	$0.001	1	—	—
10	x402 Scout Relay x402-scout-relay.onrender.com Base LLM Inference	—	—	$0.003	1	—	—
11	x402 IBAN Validator x402-iban.suretat.com Base Finance & FX	—	—	$0.001	1	—	—
12	OptimEngine optim-x402-gateway-production.up.railway.app Base Other	—	—	$0.05 – $0.3	9	—	—
13	json-schema.org/draft/2020-12/schema json-schema.org Base LLM Inference	—	—	$0.01	1	—	—
14	X402-scoutgate x402-scoutgate.onrender.com Base Weather	—	—	$0.0005 – $49	227	—	—