Freemium
Added on Nov 02,2026
Agent Inbox is an inbox for AI agents that gives an agent its own email address and connects it to Slack and Telegram, so it can receive messages, start conversations and handle replies from people.
It is built by Novu, the team behind an open-source notification platform, and the command line tool is open source under the MIT licence.
Setup runs from a single command that creates the inbox and gives it an email address, with optional Telegram and Slack connections. All channels share one inbox, so a thread stays together when someone switches channel. The site lists WhatsApp and iMessage as coming soon.
Key features include two-way conversations, contact lists and invite links, structured replies where the agent can ask, request approval or offer a choice and get a clear answer back, deadlines on requests, asynchronous waiting, JSON output for every command, and a listener that wakes the agent when a message arrives.
It works with Claude Code, Codex, Cursor, OpenCode, Hermes, OpenClaw, Grok Bot and other agents through a CLI, skills or MCP.
Owners can see every conversation and decision, choose who can reach the agent and pause it at any time. Activity history is searchable, and custom domains let agents send from your own subdomain. The underlying Novu infrastructure is SOC 2 Type II and ISO 27001 certified.
Pricing: free for 100 conversations a month with no credit card required. Enterprise options, including your own domain and many agents, are available by booking a demo.
It is suited to developers building personal assistants, browser agents that need to receive verification codes, support and sales agents, and agents that work alongside human teammates.
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