Mail Security Tools
Mail Security Tools API: Prepaid email setup watch: up to 25 domains for 30 days, webhook on change. Pay once, then each domain's SPF, DMARC, DKIM (common selectors), MX and score are re-checked about once a day for 30 days. When something changes or breaks you get an HMAC-signed JSON POST at your https webhook_url (event watch.changed, kind changed|broke, before/after). A watch.created POST is se
- Category
- Developer tools
- Starting price
- $0.01
- Paid calls · 30 days
- 2
- Unique payers · 30 days
- 2
Paid endpoints
6 endpoints, sorted by usage. Prices are per request.
- POST/v1/watch
Mail Security Tools API: Prepaid email setup watch: up to 25 domains for 30 days, webhook on change. Pay once, then each domain's SPF, DMARC, DKIM (common selectors), MX and score are re-checked about once a day for 30 days. When something changes or breaks you get an HMAC-signed JSON POST at your https webhook_url (event watch.changed, kind changed|broke, before/after). A watch.created POST is se
$0.30Base1calls / 30d - GET/v1/score/batch
Mail Security Tools API: Email security score for up to 5 domains in one call, lowest score first. SPF, DKIM and DMARC email-security score for up to 5 domains in one call, with per-domain findings. $0.04 USDC on Base.
$0.04Base1calls / 30d - GET/v1/bulk-score
Score email security (SPF, DMARC, DKIM, MX) for up to 100 domains in one call. $0.5 USDC on Base per call. Returns per-domain score, grade and issues plus a summary: grade counts, missing DMARC/SPF and worst 10. Bad input 400 and widespread DNS failure 502, not charged. Don't use this for one domain; /v1/score costs less.
$0.50Base0calls / 30d - GET/v1/email-check
Validate an email address: syntax, MX, disposable and role account. $0.01 USDC on Base per call. Returns a verdict of ok, risky or undeliverable without sending mail. Bad syntax returns 400, not charged. Don't use this for confirming a mailbox exists; no SMTP probe is made.
$0.01Base0calls / 30d - GET/v1/fix-plan
Get the exact SPF, DKIM and DMARC records to publish, with steps for your DNS host. $1 USDC on Base per call. Reads live MX, NS, SPF, DKIM and DMARC, detects the mail provider and DNS host, and returns records in order with a staged DMARC rollout. Non-sending domains get a lock-down set. Bad input 400, unknown domain 404, not charged. Don't use this for a quick grade; use /v1/score.
$1.00Base0calls / 30d - GET/v1/score
Grade a domain's email security: SPF, DMARC, DKIM and MX score. $0.01 USDC on Base per call. Returns a 0-100 score and A-F grade (SPF 30, DMARC 40, DKIM 25, MX 5) from live DNS, with findings and the top 3 fixes. Bad input 400, unknown domain 404, not charged. Don't use this for the exact records to publish; use /v1/fix-plan.
$0.01Base0calls / 30d