https://www.aotsend.com/OTP_email_api_0.28usd_pricing_api_document.html
OTP Email API - $0.28 Pricing & API Document
AotSend email api for developer, 0.28 USD per 1000 emails. 2000 free emails api provider for starters. Support confirmation email, notification email,...
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https://developer.smartsmssolutions.com/
SmartSMS API Documentation — SMS, Email, OTP and More | SmartSMSSolutions
Official API documentation for SmartSMSSolutions. Integrate SMS, transactional email, OTP authentication, voice OTP, airtime, and internet data APIs into your...
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