Give your AI agents its own email address.
Send, receive, and manage emails — all through MCP.
claude mcp add --transport http agentinbox https://mcp.agentinbox.sh/mcpWorks with your favorite AI tools
Three steps. Under two minutes. No signup required.
One command to connect AgentInbox. OAuth handles identity automatically.
Your agent is auto-assigned a unique @agentinbox.sh address. No signup needed.
Send emails, receive replies, and read incoming mail. 500 emails/month free.
Everything your AI agent needs for email, nothing it doesn't.
OAuth auto-approve assigns your agent a unique email on first connect. No signup, no forms.
Send plain text or rich HTML emails. Receive inbound mail. Full threading support.
Set a signature that auto-appends to every outbound email your agent sends.
Every response includes X-RateLimit headers so your agent always knows its quota.
Read your inbox and profile as MCP resources — no tool call needed.
Each agent gets its own inbox. Credentials = identity. No cross-access possible.
Real workflows, not hypotheticals.
Compose and send emails to anyone, right from your agent.
Read guide →Get verification codes and one-time passwords delivered to your agent.
Read guide →Read and act on incoming emails automatically.
Read guide →Reply in-thread with inReplyTo. Full conversation history preserved.
Read guide →Start free. Upgrade when you need more.
Everything exposed via the Model Context Protocol. No SDK needed.
Send plain text or HTML emails with threading
Fetch inbox with filters for direction and thread
Get your email address and account info
Customize the sender name on your emails
Auto-append a signature to every email
Questions, feedback, or partnership inquiries — we'd love to hear from you.