Upstream
The first inbox designed for humans and agents
Jonathan Tiret, Louis Lecat · 2 co-founders
Profile coverage5 of 8 · missing Signals, Customers, Stack / tools · last run 8/10/2026
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Your inbox, handled for you. Upstream's agents sort the noise, draft replies in your exact voice, follow up at the right time, and do what you ask - like finding receipts or scheduling meetings - so you can fly through your inbox and have fun doing it.