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Bulk Email Verifier
x402
Bulk Email Verifier is a paid API for AI agents from intel.rallylive.ca, paid per call via x402, $0.1/call, status unknown (last checked 2026-09-14).
Verifies up to 20 email addresses in a single call, returning syntax, MX, disposable, role-address, free-provider flags, mail provider, deliverability verdict, and a batch summary.
Price / call$0.1
Success—
StatusUnknown
How this service works
Bulk email verification: up to 20 addresses in one $0.01 call. For each: syntax, MX presence, disposable and role-address flags, free-provider flag, mail provider and a deliverable verdict with reason, plus a summary count. Email list cleaning at a twentieth of the per-address price.
Output
For each email address: syntax validity, MX record presence, disposable flag, role-address flag, free-provider flag, detected mail provider name, deliverability verdict (e.g. deliverable/undeliverable/risky), and a reason string. Also includes an overall batch summary with counts per verdict category.
Example use cases
Pre-campaign email list cleaning
“I'm about to send a marketing email to 500 contacts — can you verify this batch of 20 addresses at a time and flag any that are disposable, role-based, or undeliverable so I can remove them before I send?”
Signup form fraud filtering
“We just got a wave of new signups and I suspect some used fake or throwaway emails — can you run these 20 addresses through bulk verification and flag the disposable ones and any that fail MX checks?”
CRM data hygiene audit
“I exported a chunk of our CRM contacts and want to clean up stale entries — verify these email addresses and tell me which ones have no valid MX record or are role addresses like info@ or noreply@ that we shouldn't be targeting.”
Technical details
Endpoint
GEThttps://intel.rallylive.ca/bulk/email-verifyWhen to prefer
Choose this endpoint when you need to verify multiple email addresses at once at very low cost ($0.01 for up to 20), especially for email list hygiene, pre-send campaign cleaning, or CRM audits. It is more cost-efficient than single-address verification endpoints when processing lists. Prefer it over single-address email verification when handling batches of 2–20 addresses per operation.
Side effects
- Missing or empty email list input returns an error
- More than 20 addresses per call may be rejected or truncated
- Malformed query parameters return a 400-level error
- MX lookups may time out for obscure or slow DNS zones
- Disposable provider database may not cover very new throwaway domains
- Payment failure via x402 protocol prevents the call from completing
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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