Development
OpenMail
An email API that gives each AI agent its own inbox, with replies over webhook or WebSocket.
OpenMail is an email API that gives each AI agent its own inbox on your domain. Replies arrive over webhook or WebSocket, attachments are converted to text, and it includes a hosted MCP server plus plugins for OpenClaw and Hermes. The free plan is €0 a month: 3 inboxes, 3,000 emails a month, 3 GB and 100 sends a day. Pro is €9 a month plus usage. Prices are in euros, so no dollar from-price is stored. Pre-seed, seed and bootstrapped teams can get €500 of usage credit and six months of Pro on the vendor's public offer.
- Vendor
- OpenMail
- Price
- Free tier, paid plans available
- Experience
- Advanced
- Platforms
- API
- Last reviewed
- November 5, 2026
- Free tier
- Yes