Zernio

Zernio offers marketing infrastructure that integrates social media, messaging, advertising, and voice channels through a single API key, enabling agents and applications to reach customers across multiple platforms. It handles the technical overhead of platform approvals, token rotations, rate limits, and constant API changes, so developers can integrate once and focus on building. The platform supports social posting, scheduling, comment and DM management, and analytics across 16 networks, as well as blog publishing for WordPress and Shopify.

On the advertising side, it unifies multiple ad managers into a single interface for launching campaigns and tracking spend, while the communication tools enable WhatsApp, SMS, and voice calls from a single phone number via a shared inbox. Built for enterprise scale, Zernio includes an MCP server and allows users to start for free with up to two accounts.