Agent Extraction API: email-verify
https://freetier-agent-api.pages.dev/api/email-verifyOverview
Email address check WITHOUT sending mail or SMTP probing: RFC-style syntax check, domain MX/A records via DNS-over-HTTPS $0.001 per call in USDC on Base (x402). 1 free call per caller; failed calls are never charged.
Protocol
x402
Price
$0.0020
Payment Asset
USD Coin
Payment Network
eip155:8453
Category
tools
Provider
FreeTier Kits
Source
self-registered
Indexed
2026-10-17 23:59:32
Health
Status
healthy
Latency (p50)
253ms
Uptime (30d)
97.0%
Reliability Score
93.5/100
Last Checked
2026-10-31 07:02:56
Last Healthy
2026-10-31 07:02:56
Consecutive Failures
0
x402 Payment Validation
Payment Requirements
Valid
Asset Verified
Known USDC
Facilitator
—
Input Schema
{
"method": "GET",
"queryParams": {
"email": "jane.doe@example.com"
},
"type": "http"
}
Output Schema
{
"example": {
"disposable": false,
"domain": "example.com",
"email": "jane.doe@example.com",
"free_mail": false,
"has_a": true,
"has_mx": false,
"local_part_length": 8,
"mx": [
{
"host": "",
"preference": 0
}
],
"note": "DNS checks only, no SMTP probing: whether the mailbox itself exists is not checked. Nothing is stored.",
"null_mx": true,
"reasons": [
"domain publishes null MX (accepts no mail)"
],
"role": false,
"sources": [
{
"name": "Cloudflare DNS over HTTPS (live MX/A/AAAA lookup)",
"url": "https://developers.cloudflare.com/1.1.1.1/encryption/dns-over-https/"
},
{
"license": "CC0 1.0",
"name": "disposable-email-domains/disposable-email-domains (blocklist)",
"snapshot": "2026-10-17",
"url": "https://github.com/disposable-email-domains/disposable-email-domains"
}
],
"syntax_ok": true,
"verdict": "invalid"
},
"type": "json"
}