Who hurts
Newsletter writers between 1k and 20k subscribers — too small for ad networks, big enough to be worth sponsoring.
The problem
Small newsletters are ignored by networks and have no idea who to pitch. They send twenty cold emails to the wrong companies and conclude sponsorship doesn't work at their size.
What you build
Read the archive to infer the audience, match against companies whose customer profile overlaps, and output a ranked pitch list with the specific issue to cite and a draft email per target.
Why now
Sponsor sourcing is a research task — read a lot, compare, rank. That's now a $0.10 job instead of an afternoon.
Validate it this week
Build the list by hand for five writers. Track whether any pitch gets a reply. One booked sponsorship at $400 pays for a year of the tool and closes the sale for you.
Why you'd keep winning
The outcome dataset. Knowing which pitches actually converted, by niche and list size, is not scrapeable.
The honest risk
Value is measured in booked deals, so a run of bad matches reads as a broken product. Guard quality over coverage.
The prompt is written to make an AI argue with you before it writes code — that first round of pushback is worth more than the scaffold.