Best x402 Data Enrichment APIs

37 x402 Data Enrichment 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	email-finder.api.klymax402.com email-finder.api.klymax402.com Base	$3.61* ▼ 90.3%	1,235 ▼ 55.0%	$0.005	1	—	92
2	email-deliverability.api.klymax402.com email-deliverability.api.klymax402.com Base	$3.61* ▼ 90.3%	1,235 ▼ 55.0%	$0.005	1	—	92
3	person-enrichment.api.klymax402.com person-enrichment.api.klymax402.com Base	$3.61* ▼ 90.3%	1,235 ▼ 55.0%	$0.01	1	—	88
4	Coinopai x402.coinopai.com Base	$24.41* ▼ 97.7%	478 ▼ 73.1%	$0.005 – $0.25	18	1284 ms	87
5	The-stall the-stall.intuitek.ai Base	$76.52 ▼ 82.9%	1,914 ▼ 26.2%	$0.001 – $0.67	203	—	85
6	Linked Panda api.linkedpanda.com Base	$117.80* ▼ 99.5%	742 ▼ 90.0%	$0.01 – $0.3	27	—	84
7	Dns dns.x402tools.xyz Base	$0.54 ▼ 100.0%	199 ▼ 100.0%	$0.001 – $0.005	10	—	83
8	Paysponge api.paysponge.com Base	$18.09* ▼ 96.3%	1,141 ▼ 49.8%	$0.01 – $2	56	—	83
9	X402-cybercentry-private-data-verification x402-cybercentry-private-data-verification.up.railway.app Base	$18.64* ▼ 97.1%	117 ▲ 600.0%	$0.02	3	—	80
10	api.locus.report api.locus.report Base	$32.50* ▼ 99.7%	111 ▲ 5.3%	$0.01 – $3	32	—	79
11	Attestify-os attestify-os.vercel.app Base	$1.48* ▼ 100.0%	75	$0.025 – $0.03	2	—	78
12	Probe probe.onchainintel.net Base	$14.60 ▼ 94.6%	454 ▼ 12.5%	$0.025 – $1	8	—	77
13	deliver.hergertsynthora.com deliver.hergertsynthora.com Base	$0.94* ▼ 80.8%	62 ▲ 70.0%	$0.001	1	—	77
14	mailcheck.hergertsynthora.com mailcheck.hergertsynthora.com Base	$0.94* ▼ 80.8%	62 ▲ 70.0%	$0.001	1	—	77
15	brasil-dados-api.onrender.com brasil-dados-api.onrender.com Base	$0.12* ▼ 100.0%	32 ▼ 100.0%	$0.001 – $0.01	14	—	73
16	api.veritylayer.dev api.veritylayer.dev Base	$2.89* ▼ 99.3%	20 ▲ 133.3%	$0.02 – $0.35	3	—	71
17	verity-suite.onrender.com verity-suite.onrender.com Base	$2.89* ▼ 99.3%	20 ▲ 133.3%	$0.02	1	—	71
18	Hello-world-x402 hello-world-x402.vercel.app Base	$0.02 ▼ 100.0%	19	$0.001	3	—	70
19	Verify verify.agentutil.net Base	$0.02* ▼ 100.0%	14	$0.001 – $0.004	7	—	69
20	Avisradar-production avisradar-production.up.railway.app Base	$4.80* ▼ 100.0%	10 ▼ 100.0%	$0.05 – $1	5	—	67
21	411data 411data.io Base	$11.33* ▼ 100.0%	6 ▼ 100.0%	$0.01 – $1.5	12	—	64
22	Web3-signals-api-production web3-signals-api-production.up.railway.app Base	$0.01* ▼ 100.0%	5	$0.001	2	—	63
23	WorkAgnt workagnt.ai Base	$0.10* ▼ 100.0%	5	$0.01 – $0.02	8	—	63
24	AgentMail x402.api.agentmail.to Base	$19.00* ▼ 100.0%	507 ▼ 100.0%	$0.01 – $10	164	—	62
25	Basesafe-x402 basesafe-x402.baseagentx402.workers.dev Base	$0.04 ▼ 100.0%	4	$0.01	2	—	62
26	email-auth.use.x402atlas.com email-auth.use.x402atlas.com Base	$0.01* ▼ 100.0%	1 ▼ 100.0%	$0.01	1	—	55
27	Blocknotify x402.blocknotify.com Base	$0.01* ▼ 100.0%	1	$0.0011 – $0.05	6	—	55
28	dyoe-audit-verify.netlify.app dyoe-audit-verify.netlify.app Base	$16.06* ▼ 100.0%	51 ▼ 100.0%	$0.01 – $0.1	18	—	34
29	Notify notify.melis.ai Base	$0.09 ▼ 100.0%	17	$0.00005 – $0.005	27	—	24
30	clawmail.xyz clawmail.xyz Base	—	—	$1	1	—	—
31	AI Readiness Checker ai-readiness.mingles.ai Base	—	—	$0.005 – $0.01	2	—	—
32	inbox.camelai.io inbox.camelai.io Base	—	—	$0.005	1	—	—
33	Company Enrichment API company-enrichment-api-production.up.railway.app Base	—	—	$0.01	1	—	—
34	sentinel-awms.onrender.com sentinel-awms.onrender.com Base	—	—	$0.005	1	—	—
35	fastsend.dev fastsend.dev Base	—	—	$0.165	1	—	—
36	verify.camelai.io verify.camelai.io Base	—	—	$0.005	1	—	—
37	validate.agentutil.net validate.agentutil.net Base	—	—	$0.001	1	—	—

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