---
title: "Hail.so: Universal Communications Layer for AI Agents"
source: "Hacker News 热门（Algolia · 中文化）"
source_tier: "t2"
url: "https://hail.so/"
permalink: "https://feed.astralor.com/items/itm_2cbfb1ed55bdefdaea862245"
published: "2026-06-29T14:05:34.000Z"
score: 48
channel: "ai"
tags: ["AI agents","Hail.so","Open Source","Communication Interface"]
---

# Hail.so: Universal Communications Layer for AI Agents

## At a glance

Hail.so is a universal communications layer for AI agents, enabling them to send and receive emails, calls, and SMS via a single MCP/API/CLI. It gives your agent a real phone number, SMS line, and inbox with one command, supporting self-hosting on GitHub or managed cloud.

## Key points

- Integrates phone, SMS, and email via a single interface
- Gives AI agents real phone numbers and inboxes
- Supports self-hosting on GitHub or managed cloud
- Built on MCP protocol for easy integration with AI frameworks

## Full text

Hail is the universal communications layer for AI agents. Give your agent a real phone number, SMS line, and inbox in one command. Self-host on GitHub or use managed cloud.

---

Verify against the original before citing; curated by Astral Feed: https://feed.astralor.com/items/itm_2cbfb1ed55bdefdaea862245