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Most reliable x402 compute APIs

16 x402 compute APIs catalogued, ranked by measured uptime. Updated August 5, 2026.

Top pick94BlockRun.ai100% uptime · from $0.001 – $5/call

#	API
1	BlockRun.ai `blockrun.ai` BaseSolana Web Search	$1.3k	11,360 ▲ 106.3%	$0.001 – $5	307	—	94
2	Achilles Agent `achillesalpha.onrender.com` Base LLM Inference	$0.96*	65	$0.005 – $0.05	17	—	77
3	Run402 `api.run402.com` Base Other	$0.62	9	$0.005 – $20	8	—	62
4	ONE-1 x402 Production `one-1-x402-production.up.railway.app` Base Utility	—	—	$0.005	1	—	—
5	payin.com `payin.com` Base Utility	—	—	$0.002	1	—	—
6	X402-scoutgate `x402-scoutgate.onrender.com` Base Weather	—	—	$0.0005 – $49	227	—	—
7	Pay402 Pro `pay402.pro` Base Utility	—	—	$0.005	1	—	—
8	Agent Arena Competition `agentarena.site` Base LLM Inference	—	—	$0.01	1	—	—
9	Gpartin--waveguard-api-fastapi-app `gpartin--waveguard-api-fastapi-app.modal.run` Base LLM Inference	—	—	$0.005 – $0.01	2	—	—
10	Data Portal Google Cloud `data-portal-172867820131.us-west1.run.app` Base Other	—	—	$0.01	2	—	—
11	SparkForge AI Compute `sparkforge.sh` Base Other	—	—	$0.01	2	—	—
12	skill-audit `eltociear-skill-audit.hf.space` Base Utility	—	—	$0.01	1	—	—
13	ouro `ourocompute.com` Base Other	—	—	$0.01	1	—	—
14	EruditePay Tron Analytics `bridge.eruditepay.com` Base Other	—	—	$0.001 – $0.05	373	—	—
15	xgate.run `xgate.run` Base LLM Inference	—	—	$0.01	1	—	—
16	x402.eruditepay.com/.well-known/agent-ca `x402.eruditepay.com` Base LLM Inference	—	—	$0.001 – $0.01	11	—	—