Voice calling API for apps and AI agents
Zernio's voice calling API gives your app real phone calls: numbers in 57 countries, AI agent routing, outbound and browser calling from $0.01 per minute.
Two-Way SMS API: How to Send, Receive and Reply to Texts From One Inbox (2026)
Send SMS and MMS from your own numbers, handle US 10DLC registration through the API, and read every reply in one inbox with your other channels.
Introducing iMessage on Zernio: send and receive via API
iMessage for business via API: order a US or UK number, send and receive iMessages next to WhatsApp and SMS, with SMS fallback and an MCP server for AI agents.
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