Hail MCP: Connecting Agents to Phone, SMS, and Email
redouanea · reddit · 2026-07-19
The author is developing an open-source MCP server named **Hail.so** to integrate phone, SMS, and email capabilities into AI agents. The v0.15 update includes: - Support for sending emails/SMS during calls to summarize conversations or confirm information - Bring-your-own STT/LLM/TTS providers for easy integration of custom voices, models, or minor languages - Added agent self-service registration for skill files - SMS coverage expanded to 64 new countries, with automated STOP/HELP/START compliance logic - Email support for custom domains, delivery tracking, and reusable attachments - Pricing database expanded to 145 LLM/STT/TTS models The author states the project stemmed from building agents for industrial and logistics companies, realizing that piecing together communication, compliance, and various integrations is very costly. The project is open-source and available for self-hosting or free registration.
Related event: Open-Source Agent Comms Platform Hail.so Updated(2 posts)→
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