78trust / 100
Verify
by x402-tollbooth.onrender.com in Security & trust
x402 APIPassing, checked 3 h ago
Check whether email addresses are real and safe to send to. Verifies up to 25 addresses per call: syntax, domain MX/A record (including null-MX), disposable-domain, role-account, free-provider and typo checks. Does not perform SMTP/mailbox verification.
POST https://x402-tollbooth.onrender.com/api/verify
Last 30 days
All checks passedSome failedAll failedNot checked
- Uptime
- 100%
- Response time
- 606 ms typical, 714 ms slowest 5%
- Last check
- 3 h ago
- Next check
- any minute now
How to call it
# See the payment challenge (nothing is charged)
curl -i -X POST "https://x402-tollbooth.onrender.com/api/verify" \
-H "content-type: application/json" \
-d '{"emails":["[email protected]","[email protected]"]}'import { wrapFetchWithPayment } from "@x402/fetch";
import { x402Client } from "@x402/core/client";
import { ExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";
const client = new x402Client().register(
"eip155:8453",
new ExactEvmScheme(privateKeyToAccount(process.env.AGENT_KEY)),
);
const pay = wrapFetchWithPayment(fetch, client);
// Not sure it's safe to pay? Preflight it first for $0.005:
// GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fx402-tollbooth.onrender.com%2Fapi%2Fverify
const res = await pay("https://x402-tollbooth.onrender.com/api/verify", {
method: "POST",
headers: { "content-type": "application/json" },
body: JSON.stringify({"emails":["[email protected]","[email protected]"]}),
});
console.log(await res.json());Example input
{
"emails": [
"[email protected]",
"[email protected]"
]
}Example output
{
"checked": 2,
"checks_performed": [
"syntax",
"domain_mx_or_a_record",
"null_mx",
"disposable_domain_list",
"role_based_account",
"free_provider_flag",
"typo_suggestion"
],
"note": "These are format and domain-level checks, not a live SMTP/mailbox delivery guarantee. status 'unknown' means DNS was inconclusive - retry later.",
"results": [
{
"checks": {
"disposable_domain": false,
"domain_accepts_mail": true,
"free_provider": true,
"role_based_account": false,
"syntax_valid": true
},
"did_you_mean": null,
"email": "[email protected]",
"notes": [
"Passed syntax, domain, disposable, role-account, and typo checks."
],
"status": "valid"
},
{
"checks": {
"disposable_domain": true,
"domain_accepts_mail": true,
"free_provider": false,
"role_based_account": false,
"syntax_valid": true
},
"did_you_mean": null,
"email": "[email protected]",
"notes": [
"Domain is on a known disposable/throwaway email list."
],
"status": "risky"
}
]
}Security scan
- No findings. We scan names, descriptions and tool definitions for hidden instructions and other prompt-injection patterns.
Recent checks
| When | Result | HTTP | Time | Price |
|---|---|---|---|---|
| 3 h ago | Passed | 402 | 298 ms | $0.005 |
| 7 h ago | Passed | 402 | 619 ms | $0.005 |
| 10 h ago | Passed | 402 | 580 ms | $0.005 |
| 14 h ago | Passed | 402 | 624 ms | $0.005 |
| 18 h ago | Passed | 402 | 606 ms | $0.005 |
| 21 h ago | Passed | 402 | 250 ms | $0.005 |
| 26 h ago | Passed | 402 | 714 ms | $0.005 |
| 29 h ago | Passed | 402 | 735 ms | $0.005 |
| 32 h ago | Passed | 402 | 676 ms | $0.005 |
| 37 h ago | Passed | 402 | 381 ms | $0.005 |