
The AI Secretary for Email and Calendar.
Stamp is the first AI Native inbox. It's more than an email client, though -- it's like your second brain. Stamp can respond to emails in your voice, organize your inbox to filter out the noise, keep track of action items, and automate essentially every task you're doing manually in your inbox today. Stamp is a Y Combinator company (Winter 2025). YC-listed status: Active.