Base API Alternatives [Page 8]

Clean your existing email lists with mailbox verification

Phone number validation REST API. Simple, Free, and Open Source.

The #1 email warming service to improve your deliverability by generating realistic and meaningful engagement to your emails. Easy-to-use solution to help you land in the main inbox instead of the spam folder.

Visit website paid $19.5 / Monthly (Pro)

Forecast Pro is a powerful and accurate forecasting package designed for business forecasters that is used across virtually all industries.

Next generation contact manager and dialer.

PubNub is a real-time messaging system for web and mobile apps that can handle API for all platforms and push messages to any device anywhere in the world in a fraction of a second without having to worry about proxies, firewalls or mobile drop-offs.

Sendgomail is a trusted DIY email marketing tool with various clients when they need to send email campaigns without worrying about installing email software.

freemium $19.0 / One-off

Facebook & Instagram comment moderation from Slack

Open Source

Boost your sales, marketing and IT tasks from Google Sheets

A painless way to add two-factor authentication to your site

Find emails of website owners

Azure Active Directory is a comprehensive identity and access management cloud solution that provides a robust set of capabilities to manage users and groups and help secure access to applications including Microsoft online services like Office 365 …

Email verifier app lets you verify email.

Cloverleaf improves healthcare outcomes and operations by connecting organizations and streamlining interoperability—with FHIR and API management support