Freedom251 › Email Verification Services
Prime Verifier
What Prime Verifier is
Prime Verifier checks email deliverability and cleans lists for marketers and developers. It validates syntax, domains and mailboxes, while detecting disposable addresses, role addresses and catch-all behavior. CSV or TXT files containing hundreds to millions of addresses can be uploaded, then downloaded with graded results and a 0–100 risk score for every email. Scores reflect verification results and signals such as catch-all status, role address, free provider, likely typo and security gateway. Its REST API exchanges JSON and supports idempotency keys, webhooks, asynchronous bulk jobs and server-sent event streaming. Signup includes 100 free verifications without a credit card, and credits do not expire. Definite verifications use one credit; catch-all, unknown and error results are free. Email finder uses 10 credits only when it returns an address. Prime Verifier lists 13 native connectors and a Zapier app linked to more than 9,000 other apps. Single API checks are not retained as stored lists, while bulk files and results are deleted after up to 15 days.
Who it suits
It suits marketers and developers handling list hygiene, form checks or automated verification workflows. Teams can use bulk uploads, API jobs, native connectors or Zapier.
What it does well
- 100 free verifications without a credit card
- Bulk CSV and TXT cleaning up to millions
- 0–100 risk scores with signal details
- REST API supports webhooks and bulk jobs
- 13 native integrations plus Zapier
What to know first
- Bulk files and results remain up to 15 days
- Make app is still being built
- n8n node awaits review
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Monthly | Renews automatically; cancel any time · Same credits as Pay-As-You-Go at a discounted rate · credits never expire · unknown, catch-all and errors free | On request |
| Pay-As-You-Go | One-time charge; credits never expire · 1 credit per definite email verification · unknown, catch-all and errors free · email finder costs 10 credits when it returns an address | On request |
As primeverifier.com lists them, read 7 Oct 2026. The maker's own page has the final word.
Verdict
Prime Verifier offers list cleaning, risk scoring and developer-focused API workflows with a useful free allowance. Its integration coverage is broad, while some automation connections remain under development or review.
Facts from Prime Verifier's own pages
- API
- The REST API accepts and returns JSON and supports idempotency keys, webhooks, asynchronous bulk jobs, and server-sent event streaming. · primeverifier.com, 7 Oct 2026
- Bulk cleaning
- Users can upload CSV or TXT lists ranging from hundreds to millions of emails and download graded results with risk scores. · primeverifier.com, 7 Oct 2026
- Company
- Prime Verifier is operated by Nexaris Inc, registered in Texas, with a listed office in Austin, Texas. · primeverifier.com, 7 Oct 2026
- Data retention
- Single API verifications are not retained as stored lists; bulk files and results are kept for up to 15 days and then deleted automatically. · primeverifier.com, 7 Oct 2026
- Free credits
- Signing up provides 100 free verifications without a credit card, and credits do not expire. · primeverifier.com, 7 Oct 2026
- Integration limits
- The Make app is being built, and the completed n8n node is awaiting review; both can currently be used through HTTP modules and an API key. · primeverifier.com, 7 Oct 2026
- Integrations
- The integrations page lists 13 native connectors, including Mailchimp, Klaviyo, ActiveCampaign, Brevo, HubSpot, Zoho CRM, SendGrid, Mailgun, Mailjet, SparkPost, Campaign Monitor, MailerLite, and Google Sheets. · primeverifier.com, 7 Oct 2026
- Pricing limits
- Each definite verification costs one credit; catch-all, unknown, and error results are free, and email finder costs 10 credits only when it returns an address. · primeverifier.com, 7 Oct 2026
- Purpose
- Prime Verifier checks email deliverability and cleans lists for marketers and developers. · primeverifier.com, 7 Oct 2026
- Risk scoring
- Each email receives a 0–100 risk score based on its result and signals such as catch-all, role address, free provider, likely typo, and security gateway. · primeverifier.com, 7 Oct 2026
- Security
- The company says it encrypts data in transit and at rest, uses least-privilege access controls, audit logging, revocable API keys, and IP allowlisting. · primeverifier.com, 7 Oct 2026
- Verification
- Checks include syntax, domain and mailbox validation, disposable and role-address detection, and catch-all behavior. · primeverifier.com, 7 Oct 2026
- Zapier
- The live Zapier app connects Prime Verifier to more than 9,000 other apps. · primeverifier.com, 7 Oct 2026
Where Prime Verifier stands on Freedom251
- Email Verification Services#23 of 36