# 60 CheckNumber.AI alternatives in 2026

Last updated: November 8, 2026.

CheckNumber.AI alternatives for email verification APIs. Easy Email Verification, NullBounce and Sealch each cost $0.50 per 1,000 emails.

## Email verification API alternatives

On our [CheckNumber.AI plan pages](https://datacircle.dev/validate-email-apis/checknumber-ai/free), we compare each CheckNumber.AI plan with other providers' plans. We list other providers' plans below, cheapest per 1,000 emails first.

- [Easy Email Verification, $1,200 monthly, Monthly subscription, 80,000 emails a day, POST /bulk/upload](https://datacircle.dev/validate-email-apis/easy-email-verification/free-tier-post-bulk-upload#1200-monthly-monthly-subscription-80000-emails-a-day-post-bulk-upload): $0.50 per 1,000 emails
- [NullBounce, $500 pack](https://datacircle.dev/validate-email-apis/nullbounce/free#500-pack): $0.50 per 1,000 emails
- [Sealch, $25 monthly, Monthly up to 50,000 / mo, POST /api/verify](https://datacircle.dev/validate-email-apis/sealch/free-free-post-api-verify#25-monthly-monthly-up-to-50000-mo-post-api-verify): $0.50 per 1,000 emails
- [Verimail, $500 pack](https://datacircle.dev/validate-email-apis/verimail/free#500-pack): $0.50 per 1,000 emails
- [ExactVerify, contact us, POST /v1/bulk](https://datacircle.dev/validate-email-apis/exactverify/free-post-v1-bulk#contact-us-post-v1-bulk): no price per 1,000 emails
- [Kawaa, contact us, Custom plan, POST /v1/verify/batch](https://datacircle.dev/validate-email-apis/kawaa/free-post-v1-verify-batch#contact-us-custom-plan-post-v1-verify-batch): no price per 1,000 emails
- [QuickEmailVerification, contact us, Custom volume, POST /v1/bulk-verify](https://datacircle.dev/validate-email-apis/quickemailverification/free-tier-post-v1-bulk-verify#contact-us-custom-volume-post-v1-bulk-verify): 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

On our [CheckNumber.AI plan pages](https://datacircle.dev/validate-phone-apis/checknumber-ai/free-trial-post-v1-tasks-whatsapp-checker), we compare each CheckNumber.AI plan with other providers' plans. We list other providers' plans below, cheapest per 1,000 phones first.

- [Foxentry, free trial, POST /phone/validate, Validate phone number (basic)](https://datacircle.dev/validate-phone-apis/foxentry/free-trial-post-phone-validate-validate-phone-number-basic): $0.00 per 1,000 phones
- [HLR Lookups, free, 100 free lookups, POST /nt-lookups](https://datacircle.dev/validate-phone-apis/hlr-lookups/free-100-free-lookups-post-nt-lookups): $0.00 per 1,000 phones
- [Trestle, free trial, GET /3.0/phone_intel](https://datacircle.dev/validate-phone-apis/trestle/free): $0.00 per 1,000 phones
- [seven.io, free, GET /api/lookup/format](https://datacircle.dev/validate-phone-apis/seven-io/free-test-credit-get-api-lookup-cnam#free-get-api-lookup-format): $0.00 per 1,000 phones
- [IsValid, €9 monthly](https://datacircle.dev/validate-phone-apis/isvalid/free#9-monthly): $0.034 per 1,000 phones
- [ZelNum, $100 pack, Pay as you go, $100 top-up, POST /detect/file, WhatsApp Number Checker (file upload)](https://datacircle.dev/validate-phone-apis/zelnum/free-test-post-detect-phone-status-check#100-pack-pay-as-you-go-100-top-up-post-detect-file-whatsapp-number-checker-file-upload): $0.048 per 1,000 phones
- [Antideo, $80 monthly, 2000 requests/hour, GET /phone/{phone number}](https://datacircle.dev/validate-phone-apis/antideo/free-10-requests-hour-get-phone-phone-number#80-monthly-2000-requests-hour-get-phone-phone-number): $0.056 per 1,000 phones
- [Apiverket, kr4,990 yearly](https://datacircle.dev/validate-phone-apis/apiverket/free#kr4990-yearly): $0.056 per 1,000 phones
- [DomScan, $49 monthly, Scale, POST /v1/phone/validate](https://datacircle.dev/validate-phone-apis/domscan/free-post-v1-phone-validate#49-monthly-scale-post-v1-phone-validate): $0.098 per 1,000 phones
- [Consulta Operadora, pay as you go, Consultas local - Servidor Dedicado 2.500.000, GET /sistema/consulta_resumida.php](https://datacircle.dev/validate-phone-apis/consulta-operadora/free-teste-gratuito-get-sistema-consulta-resumida-php#pay-as-you-go-consultas-local-servidor-dedicado-2-500-000-get-sistema-consulta-resumida-php): $0.098 per 1,000 phones
- [API Ninjas, $1,188 yearly, Business, GET /v1/phonelookup](https://datacircle.dev/validate-phone-apis/api-ninjas/free-get-v1-phonelookup#1188-yearly-business-get-v1-phonelookup): $0.099 per 1,000 phones
- [APIFreaks, $500 monthly, Monthly 10,000,000 credits, POST /phone/validation/bulk](https://datacircle.dev/validate-phone-apis/apifreaks/free-one-off-10000-credits-post-phone-validation-bulk#500-monthly-monthly-10000000-credits-post-phone-validation-bulk): $0.10 per 1,000 phones
- [WasenderAPI, $459 yearly](https://datacircle.dev/validate-phone-apis/wasenderapi/free#459-yearly): $0.128 per 1,000 phones
- [Pushbuild, top-up](https://datacircle.dev/validate-phone-apis/pushbuild/free#top-up): $0.16 per 1,000 phones
- [2Chat, $100 pack, Extra requests package, GET /open/whatsapp/check-number/{your-number}/{number-to-check}, Check Number](https://datacircle.dev/validate-phone-apis/2chat/free-trial-get-open-whatsapp-check-number-your-number-number-to-check-check-number#100-pack-extra-requests-package-get-open-whatsapp-check-number-your-number-number-to-check-check-number): $0.20 per 1,000 phones
- [ALAPI, top-up](https://datacircle.dev/validate-phone-apis/alapi/top-up): $0.269 per 1,000 phones
- [TCPA Litigator List, $2,750 pack, 10,000,000 scrub coins, POST /scrub/phone/](https://datacircle.dev/validate-phone-apis/tcpa-litigator-list/225-pack-100000-scrub-coins-post-scrub-phone#2750-pack-10000000-scrub-coins-post-scrub-phone): $0.275 per 1,000 phones
- [Veriphone, $699 pack, 2,500,000 credits, GET /v3/verify, /v3/verify](https://datacircle.dev/validate-phone-apis/veriphone/free-get-v3-verify#699-pack-2500000-credits-get-v3-verify-v3-verify): $0.28 per 1,000 phones
- [TPSClear, £795 monthly, Scale, POST /v1/screen](https://datacircle.dev/validate-phone-apis/tpsclear/1-pack#795-monthly-scale-post-v1-screen): $0.353 per 1,000 phones
- [Sigma SMS, contact us, MNP](https://datacircle.dev/validate-phone-apis/sigma-sms/contact-us-hlr#contact-us-mnp): $0.358 per 1,000 phones
- [Ihuyi, CNY 4,800 pack](https://datacircle.dev/validate-phone-apis/ihuyi/cny-500-pack#cny-4800-pack): $0.359 per 1,000 phones
- [TanshuAPI, CNY 2,900 pack](https://datacircle.dev/validate-phone-apis/tanshuapi/free-10-get-api-phone-invalid-v1-index#cny-2900-pack): $0.434 per 1,000 phones
- [NumLookupAPI, $109.99 monthly, Scale, GET /v1/validate/{number}, Validate Phone Number](https://datacircle.dev/validate-phone-apis/numlookupapi/free-get-v1-validate-number#109-99-monthly-scale-get-v1-validate-number): $0.44 per 1,000 phones
- [TPSCheck, £1,980 yearly, Business, POST /check](https://datacircle.dev/validate-phone-apis/tpscheck/free#1980-yearly-business-post-check): $0.44 per 1,000 phones
- [Numverify by APILayer, $1,325.99 yearly](https://datacircle.dev/validate-phone-apis/numverify-by-apilayer/free-plan#1325-99-yearly): $0.442 per 1,000 phones
- [ReefAPI, $450 quarterly, Enterprise quarterly, POST /phone-validate/v1/validate](https://datacircle.dev/validate-phone-apis/reefapi/free-post-phone-validate-v1-validate#450-quarterly-enterprise-quarterly-post-phone-validate-v1-validate): $0.50 per 1,000 phones
- [VeriRoute Intel, top-up from $5, Pay as you go, POST /api/v1/lrn/bulk, Bulk LRN Lookup](https://datacircle.dev/validate-phone-apis/veriroute-intel/top-up-from-5-pay-as-you-go-post-api-v1-lrn-bulk-bulk-lrn-lookup): $0.50 per 1,000 phones
- [VeriRouteIntel, top-up from $5, Pay per use, POST /api/v1/lrn/bulk](https://datacircle.dev/validate-phone-apis/verirouteintel/top-up-from-5-pay-per-use-post-api-v1-lrn-bulk): $0.50 per 1,000 phones
- [BigDataCloud, $79.90 monthly, Silver, GET /data/phone-number-validate-by-ip](https://datacircle.dev/validate-phone-apis/bigdatacloud/free-base-get-data-phone-number-validate-by-ip#79-90-monthly-silver-get-data-phone-number-validate-by-ip): $0.799 per 1,000 phones
- [Phone-Check.app, $79.99 pack, 100,000 Credits, GET /v1-get-phone-details](https://datacircle.dev/validate-phone-apis/phone-check-app/5-59-pack-5000-credits-get-v1-get-phone-details#79-99-pack-100000-credits-get-v1-get-phone-details): $0.80 per 1,000 phones
- [RealValidito, $2,000 pack, 2,500,000 phone lookup credits](https://datacircle.dev/validate-phone-apis/realvalidito/free-trial-post-phonelookup-validate#2000-pack-2500000-phone-lookup-credits): $0.80 per 1,000 phones
- [CallerAPI, $12,000 monthly, Enterprise transparency $12,000, GET /api/lookup/{phone}](https://datacircle.dev/validate-phone-apis/callerapi/free-trial-get-api-lookup-phone#12000-monthly-enterprise-transparency-12000-get-api-lookup-phone): $1.00 per 1,000 phones
- [apipick, $5 pack, 5,000 credits, POST /api/check-china-phone](https://datacircle.dev/validate-phone-apis/apipick/free-100-free-credits-post-api-check-china-phone#5-pack-5000-credits-post-api-check-china-phone): $1.00 per 1,000 phones
- [NumRadar, €29 monthly, Growth, POST /validate](https://datacircle.dev/validate-phone-apis/numradar/9-monthly-starter-post-validate#29-monthly-growth-post-validate): $1.31 per 1,000 phones
- [MobileValidate, top-up from $20, Top-up of $20 to $99.99, POST /jobs, Carrier lookup (bulk job)](https://datacircle.dev/validate-phone-apis/mobilevalidate/top-up-from-20-top-up-of-20-to-99-99-post-jobs-carrier-lookup-bulk-job): $1.50 per 1,000 phones
- [ProWebLook, $15 pack](https://datacircle.dev/validate-phone-apis/proweblook/free-signup-credits-post-wavalidation-batch#15-pack): $1.50 per 1,000 phones
- [Telnyx, top-up from $10](https://datacircle.dev/validate-phone-apis/telnyx/top-up-from-10): $1.50 per 1,000 phones
- [HLR Lookup, £2,500 pack, 1,000,000 lookups, POST /apiv2/mnp, MNP-only lookup](https://datacircle.dev/validate-phone-apis/hlr-lookup/free-200-free-credits-post-apiv2-mnp#2500-pack-1000000-lookups-post-apiv2-mnp): $1.67 per 1,000 phones
- [Cloudmersive, $499.99 monthly](https://datacircle.dev/validate-phone-apis/cloudmersive/free#499-99-monthly): $2.00 per 1,000 phones
- [DataZapp, $2,000 pack](https://datacircle.dev/validate-phone-apis/datazapp/125-pack#2000-pack): $2.00 per 1,000 phones
- [PhoneValidator, top-up, Fake Number Check](https://datacircle.dev/validate-phone-apis/phonevalidator/free-trial-get-api-v4-phonesearch-fake-number-check#top-up-fake-number-check): $2.00 per 1,000 phones
- [Addressfinder, contact us](https://datacircle.dev/validate-phone-apis/addressfinder/free#contact-us): no price per 1,000 phones
- [BudgetSMS, top-up, Pay per use, GET /hlr/, HLR lookup, cached](https://datacircle.dev/validate-phone-apis/budgetsms/top-up-pay-per-use-get-hlr-hlr-lookup-cached): no price per 1,000 phones
- [ChinaDataPay, contact us](https://datacircle.dev/validate-phone-apis/chinadatapay/contact-us): no price per 1,000 phones
- [ClearoutPhone, contact us, More than 5,000,000 credits or custom, POST /v1/phonenumber/validate, Instant Phone Number Validation](https://datacircle.dev/validate-phone-apis/clearoutphone/free-credits-post-v1-phonenumber-validate#contact-us-more-than-5000000-credits-or-custom-post-v1-phonenumber-validate): no price per 1,000 phones
- [DNC.com, contact us, Contact sales, GET /v1.4/Data/RealTimeDisconnect](https://datacircle.dev/validate-phone-apis/dnc-com/contact-us-contact-sales-get-v1-4-data-realtimedisconnect): no price per 1,000 phones
- [Data247, $12 pack, Membership, GET /v3.0, Carrier247 (International)](https://datacircle.dev/validate-phone-apis/data247/12-pack-membership-get-v3-0-carrier247-international): no price per 1,000 phones
- [Decentro, contact us](https://datacircle.dev/validate-phone-apis/decentro/contact-us): no price per 1,000 phones
- [Enginy, contact us](https://datacircle.dev/validate-phone-apis/enginy/contact-us): no price per 1,000 phones
- [Kleber, contact us](https://datacircle.dev/validate-phone-apis/kleber/free#contact-us): no price per 1,000 phones
- [Maytapi, contact us](https://datacircle.dev/validate-phone-apis/maytapi/free#contact-us): no price per 1,000 phones
- [OpenLookup, contact us](https://datacircle.dev/validate-phone-apis/openlookup/free#contact-us): no price per 1,000 phones
- [World Text, £11.25 pack, 2,000 credits, GET /hlr/info](https://datacircle.dev/validate-phone-apis/world-text/11-25-pack-2000-credits-get-hlr-info): 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

- [Easy Email Verification alternatives](https://datacircle.dev/easy-email-verification-alternatives)
- [NullBounce alternatives](https://datacircle.dev/nullbounce-alternatives)
- [Sealch alternatives](https://datacircle.dev/sealch-alternatives)
- [Verimail alternatives](https://datacircle.dev/verimail-alternatives)
- [ExactVerify alternatives](https://datacircle.dev/exactverify-alternatives)
- [Kawaa alternatives](https://datacircle.dev/kawaa-alternatives)
- [QuickEmailVerification alternatives](https://datacircle.dev/quickemailverification-alternatives)
- [Foxentry alternatives](https://datacircle.dev/foxentry-alternatives)