Email validation · standalone vs ESP add-on
Validator vs SendGrid Email Validation
SendGrid's email validation is a capable add-on for teams already on their platform. Validator is a standalone service that works with any ESP, adds phone validation, and requires no platform account to get started.
Feature comparison
| Feature | Validator | SendGrid Email Validation |
|---|---|---|
| Email deliverability check | Yes | Yes |
| Phone line status check | Yes | No |
| DNC registry check | Yes | No |
| Standalone product | Yes — no ESP required | Requires SendGrid account |
| Works with any ESP | Yes | SendGrid only |
| LeadConnector / CRM integration | Yes | No |
| Pricing model | Pay-per-use, prepaid wallet | Per validation, tied to plan tier |
| Monthly commitment | None | Required (plan-based) |
Validator pricing: see full rate card →
They can work together
If you use SendGrid for email delivery, Validator complements rather than replaces it. Use Validator to clean your list before importing contacts or launching a campaign, then send through SendGrid. Email and phone validation in Validator, sending in SendGrid.
Why choose Validator
ESP-agnostic
Validate with Validator and send with whichever ESP fits your stack — SendGrid, Amazon SES, Postmark, or anything else. No platform lock-in.
Phone validation included
One account, one prepaid balance covers email deliverability, phone line status, carrier lookup, and DNC compliance — not just email.
No subscription required
Top up your prepaid wallet and spend only on the validations you run. No monthly plan or platform account required to get started.
Sourced and dated
Compare the cost of knowing your contacts
Validator prices are today's catalog prices. Each verdict is computed from them against the competitor's published figure, never written by hand.
| Check | Validator | Competitor | Verdict |
|---|---|---|---|
| Verify | $0.0100 · 20 credits |
SendGrid
· Email API Pro plan, $89.95 a month with 2,500 validations included $0.03598 per validation at the included allowance |
Lower |
| Verify | $0.0100 · 20 credits |
SendGrid
· Validations beyond the Pro allowance up to $0.0100 per validation, published as up to |
At their published ceiling |
USD per call, because competitors publish dollars; 1 credit = $0.0005. A Validator price the catalog cannot supply is shown as unavailable, never as a win.
SendGrid pricing page, Checked September 22, 2026
Frequently asked questions
- Do I have to switch from SendGrid to use Validator?
- No. Validator is purely for validation, not sending. You can keep SendGrid as your email service provider and use Validator to clean your list before uploading contacts or sending campaigns.
- Does Validator require a SendGrid account?
- No. Validator is a fully independent service. It works with any ESP — SendGrid, Amazon SES, Postmark, Mailgun, or anything else. No platform lock-in.
- Can Validator validate both email and phone numbers?
- Yes. Unlike email-only validation add-ons, Validator covers email deliverability, phone line status, carrier lookup, and DNC compliance from a single API and one prepaid balance.
Try Validator with any ESP
Validate email and phone in one place, then send with whichever platform you already use.