# 16 SEON alternatives in 2026

Last updated: November 10, 2026.

The best alternatives to SEON for email verification APIs: pingutil, Validemail.co and looot, by our benchmark. SEON's website is seon.io.

## Email verification API alternatives

[pingutil](https://datacircle.dev/validate-email-apis/pingutil/free-api-key-post-v1-verify), [Validemail.co](https://datacircle.dev/validate-email-apis/validemail-co/free-get-api-v1-validate#9-90-monthly-9-90-month-get-api-v1-validate) and [looot](https://datacircle.dev/validate-email-apis/looot/top-up) are the best [email verification API providers](https://datacircle.dev/best-email-verification-api) in the Datacircle benchmark.

On our [SEON plan pages](https://datacircle.dev/validate-email-apis/seon/699-monthly), we compare each SEON plan with other providers' plans. We list other providers' plans below.

- [Cold Leads, $99 monthly, Business, POST /verify](https://datacircle.dev/validate-email-apis/cold-leads/99-monthly-business-post-verify): no price per 1,000 emails
- [Disify, $9 monthly, Starter, POST /email](https://datacircle.dev/validate-email-apis/disify/free-anonymous-access-post-email#9-monthly-starter-post-email): no price per 1,000 emails
- [Enrich.so, contact us, Enterprise, POST /email-validation](https://datacircle.dev/validate-email-apis/enrich-so/free#contact-us): no price per 1,000 emails
- [GetProspect, contact us, Custom terms, POST /v2/email-verifications](https://datacircle.dev/validate-email-apis/getprospect/free-free-post-v2-email-verifications#contact-us-custom-terms-post-v2-email-verifications): no price per 1,000 emails
- [KaijuVerifier, contact us, Enterprise, POST /api/v1/jobs, Submit an async bulk job](https://datacircle.dev/validate-email-apis/kaijuverifier/free-post-api-v1-jobs-submit-an-async-bulk-job#contact-us-enterprise-post-api-v1-jobs-submit-an-async-bulk-job): no price per 1,000 emails
- [LeadFuze, $250 monthly, Starter, POST /verification/email](https://datacircle.dev/validate-email-apis/leadfuze/250-monthly-starter-post-verification-email): no price per 1,000 emails
- [Prime Verifier, contact us, Custom, over 2,000,000 credits, POST /v1/verify/single](https://datacircle.dev/validate-email-apis/prime-verifier/free-post-v1-verify-single#contact-us-custom-over-2000000-credits-post-v1-verify-single): no price per 1,000 emails
- [RouterGrowth, $39 monthly](https://datacircle.dev/validate-email-apis/routergrowth/free#39-monthly): no price per 1,000 emails

Compare every email verification API plan: [Email verification API pricing: free and cheapest plans compared](https://datacircle.dev/email-verification-api-pricing)

## Phone validation API alternatives

[Trestle](https://datacircle.dev/validate-phone-apis/trestle/free#top-up-from-10-self-serve-pay-as-you-go-get-3-0-phone-intel-phone-validation-api), [Signal House](https://datacircle.dev/validate-phone-apis/signal-house/free#top-up-from-10) and [Data247](https://datacircle.dev/validate-phone-apis/data247/12-pack-membership-get-v3-0-verify247-phone) are the best [phone validation API providers](https://datacircle.dev/best-phone-validation-api) in the Datacircle benchmark.

On our [SEON plan pages](https://datacircle.dev/validate-phone-apis/seon/699-monthly), we compare each SEON plan with other providers' plans. We list other providers' plans below.

- [CheckMobi, $15 monthly, Startup, GET /v1/lookup/verify/{NUMBER}](https://datacircle.dev/validate-phone-apis/checkmobi/free-trial-get-v1-lookup-verify-number#15-monthly-startup-get-v1-lookup-verify-number): no price per 1,000 phones
- [ClearoutPhone, $31 monthly, Monthly 5,000 credits, POST /v1/phonenumber/validate, Instant Phone Number Validation, smart mode](https://datacircle.dev/validate-phone-apis/clearoutphone/free-credits-post-v1-phonenumber-validate-instant-phone-number-validation-smart-mode#31-monthly-monthly-5000-credits-post-v1-phonenumber-validate-instant-phone-number-validation-smart-mode): no price per 1,000 phones
- [Foxentry, contact us, Above 100 000 req / month, POST /phone/validate, Validate phone number (basic)](https://datacircle.dev/validate-phone-apis/foxentry/free-trial-post-phone-validate-validate-phone-number-basic#contact-us-above-100-000-req-month-post-phone-validate-validate-phone-number-basic): no price per 1,000 phones
- [HLR Lookup, contact us, 1,250,000+ lookups, POST /apiv2/validate](https://datacircle.dev/validate-phone-apis/hlr-lookup/free-200-free-credits-post-apiv2-validate#contact-us-1250000-lookups-post-apiv2-validate): no price per 1,000 phones
- [HLR Lookups, contact us, Postpaid account, POST /hlr-lookups](https://datacircle.dev/validate-phone-apis/hlr-lookups/free-100-free-lookups-post-hlr-lookups#contact-us-postpaid-account-post-hlr-lookups): no price per 1,000 phones
- [Instasent, €49 monthly](https://datacircle.dev/validate-phone-apis/instasent/top-up-from-25#49-monthly): no price per 1,000 phones
- [Lookify, $199 monthly](https://datacircle.dev/validate-phone-apis/lookify/199-monthly): no price per 1,000 phones
- [Trestle, contact us, Enterprise, GET /3.0/phone_intel, Phone Validation API](https://datacircle.dev/validate-phone-apis/trestle/free#contact-us-enterprise-get-3-0-phone-intel-phone-validation-api): no price per 1,000 phones

Compare every phone validation API plan: [Phone validation API pricing: free and cheapest plans compared](https://datacircle.dev/phone-validation-api-pricing)

## See also

- [Cold Leads alternatives](https://datacircle.dev/cold-leads-alternatives)
- [Disify alternatives](https://datacircle.dev/disify-alternatives)
- [Enrich.so alternatives](https://datacircle.dev/enrich-so-alternatives)
- [GetProspect alternatives](https://datacircle.dev/getprospect-alternatives)
- [KaijuVerifier alternatives](https://datacircle.dev/kaijuverifier-alternatives)
- [LeadFuze alternatives](https://datacircle.dev/leadfuze-alternatives)
- [Prime Verifier alternatives](https://datacircle.dev/prime-verifier-alternatives)
- [RouterGrowth alternatives](https://datacircle.dev/routergrowth-alternatives)