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SPF Authorizes SendGrid Bulk Check
x402
SPF Authorizes SendGrid Bulk Check is a paid API for AI agents from email.intel.rallylive.ca, paid per call via x402, $0.1/call, status unknown (last checked 2026-10-24).
Checks up to 20 domains in a single concurrent batch to determine whether each domain's SPF record authorizes SendGrid to send email on its behalf.
Price / call$0.1
Success—
StatusUnknown
How this service works
Bulk spf authorizes sendgrid: up to 20 domains in one call, processed concurrently, results in input order with a per-item error field and a failure count. Same answer per item as the single endpoint. Batch enrichment for agents that hold a list. $0.10 per batch.
Output
Returns an ordered array of results matching the input domain list, each containing a boolean indicating whether the domain's SPF record authorizes SendGrid, a per-item error field if the lookup failed, and an overall failure count for the batch.
Example use cases
Audit customer domains for SendGrid authorization
“I have a list of 18 customer domains onboarded to our SendGrid account — can you check all of them at once to see which ones have properly set up their SPF record to authorize SendGrid?”
Pre-send deliverability validation
“Before we kick off this email campaign, check these 12 domains to confirm their SPF records authorize SendGrid — flag any that are missing it so we can fix them first.”
Security sweep for unauthorized SendGrid use
“Run a batch SPF check on these 20 competitor domains and tell me which ones are currently authorizing SendGrid to send email on their behalf.”
Technical details
Endpoint
GEThttps://email.intel.rallylive.ca/bulk/email/spf-authorizes/sendgrid?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to check more than one domain for SendGrid SPF authorization in a single API call. It processes up to 20 domains concurrently and returns results in input order, making it far more efficient than calling the single-domain endpoint repeatedly. Prefer this over the single endpoint whenever you hold a list of domains to validate, especially in bulk enrichment pipelines or onboarding workflows.
Side effects
- Domain does not exist or has no SPF TXT record — per-item error returned
- DNS lookup timeout for one or more domains — affected items flagged with error
- More than 20 domains submitted — batch limit exceeded
- Malformed domain input — validation error on that item
- Payment not included or insufficient — 402 response blocking the call
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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