"HAL" matching MCP servers:

Phone, SMS & email for AI agents. One remote MCP server (Streamable HTTP, OAuth or API-key auth, no local install) exposing call, sms, email, and event tools; also usable via CLI, Python SDK, and OpenAPI. Self-hostable, AGPLv3.

MCP server for the HAUL API marketplace, enabling email and phone verification, credit balance checks, and top-ups.

Unified email and calendar management with AI agent, supporting email operations, calendar availability, and time blocking via MCP tools.

A self-hosted MCP server for managing email, calendar, and cloud storage across Microsoft 365, Google Workspace, and IMAP accounts, enabling natural language interaction through any MCP client.