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Agent Tools Batch Email Validation
x402
Agent Tools Batch Email Validation is a paid API for AI agents from agents.crowdspark.me, paid per call via x402, $0.006/call, status unknown (last checked 2026-10-31).
Validates up to 10 email addresses in a single call, checking syntax, MX records, disposable/role/free-provider status, and returning a deliverability guess per address.
Price / call$0.006
Success—
StatusUnknown
How this service works
Pay-per-call utilities for AI agents over x402, USDC on Base.
Output
Returns a JSON object with a count of addresses checked, number succeeded and failed, and a results array where each item includes the original input email, an ok flag, and (on success) a result object containing deliverable_guess (e.g. 'likely', 'risky', 'unknown') plus boolean flags for disposable, role, and free-provider status. Failed items return a per-item error without failing the entire call.
Example use cases
Pre-send campaign list cleaning
“Before I send out this marketing email, can you check these 8 addresses — alice@company.com, noreply@domain.net, user123@mailinator.com, john.doe@gmail.com, admin@startup.io, temp9@throwam.com, sales@enterprise.com, test@test.com — and flag which ones are disposable, role-based, or unlikely to be deliverable?”
CRM import validation
“I'm about to import a batch of leads into our CRM. Can you validate these 10 emails and let me know which ones have valid MX records, which are from free email providers, and which ones I should remove before importing?”
Signup fraud detection
“We just got a wave of new signups and I'm suspicious some used fake or throwaway emails. Can you check these 6 addresses — support@company.com, realuser@outlook.com, fake123@guerrillamail.com, jdoe@acme.com, spam@mailnull.com, user@protonmail.com — and tell me which are disposable or risky?”
Technical details
Endpoint
POSThttps://agents.crowdspark.me/v1/email/check/batch?utm_source=zero.xyzWhen to prefer
Choose this batch endpoint over the single-address endpoint when you have 2–10 emails to validate at once — it is 40% cheaper per address than calling the single-check endpoint repeatedly. Prefer it for list-cleaning pipelines, CRM imports, bulk signups, and any workflow where you collect emails in groups. Use the single-address endpoint only for real-time, one-at-a-time validation (e.g. live signup form field). For deeper domain health analysis beyond MX checks, consider the one-call email risk endpoint instead.
Side effects
- Providing more than 10 emails returns a validation error
- Malformed JSON body causes a 400 error
- Empty emails array returns an error
- Network timeout on slow MX DNS lookups
- Individual email items that are unparseable return per-item errors with ok:false rather than failing the whole batch
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| emails | array | 1 to 10 email addresses |
Output
Schema · Response
{
"type": "json",
"example": {
"count": 2,
"failed": 0,
"results": [
{
"ok": true,
"input": "jane@acme.com",
"result": {
"deliverable_guess": "likely"
}
},
{
"ok": true,
"input": "bob@mailinator.com",
"result": {
"disposable": true,
"deliverable_guess": "risky"
}
}
],
"succeeded": 2
}
}Tags
x402
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