# 7 GREENSMS alternatives in 2026 Last updated: November 7, 2026. Other providers sell phone validation APIs like GREENSMS's. Veriphone costs $11.90 per 1,000 phones, MTS Exolve $11.94 and 探数数据 tanshuapi $11.96. ## Phone validation API alternatives On our GREENSMS plan pages, we compare each GREENSMS plan with other providers' plans. We list other providers' plans below, cheapest per 1,000 phones first. - [Veriphone, $119 pack, 100,000 credits, GET /v3/verify, /v3/verify, full](https://datacircle.dev/validate-phone-apis/veriphone/free-post-v3-file-verify#119-pack-100000-credits-get-v3-verify-v3-verify-full): $11.90 per 1,000 phones - [MTS Exolve, top-up, Basic: from 4,000,001 to 5,000,000 requests a month](https://datacircle.dev/validate-phone-apis/mts-exolve/free-300-post-hlr-v1-getsimstatus#top-up-4-000-001-5-000-000): $11.94 per 1,000 phones - [探数数据 tanshuapi, CNY 800 pack](https://datacircle.dev/validate-phone-apis/tanshuapi/free-10-get-api-phone-check-v1-index#cny-800-pack): $11.96 per 1,000 phones - [NumCheckr, $290 yearly](https://datacircle.dev/validate-phone-apis/numcheckr/free#290-yearly): $12.08 per 1,000 phones - [SMSC.ru, top-up from ₽10,000, Tariff plan 5, Russia, all operators](https://datacircle.dev/validate-phone-apis/smsc-ru/top-up-from-1-tariff-plan-1-other-countries#top-up-from-10000-tariff-plan-5-russia-all-operators): $17.91 per 1,000 phones - [Sigma SMS, contact us, HLR lookups](https://datacircle.dev/validate-phone-apis/sigma-sms/contact-us-hlr): $17.91 per 1,000 phones - [Listar, top-up from €10,000, Gold, POST /search/verify-whatsapp](https://datacircle.dev/validate-phone-apis/listar/free-start-for-free-post-search-verify-whatsapp#top-up-from-10000-gold-post-search-verify-whatsapp): $18.00 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)