That works if
- Fit:your audience is obvious
- Fit:your category is well-covered in platform taxonomies
- Fit:your signal is dense
Watt Audiences · for performance teams and agencies
Describe the audience you want, in plain language, across 200,000+ behavioral signals. Watt composes it inside Claude, sizes it against the real population, and pushes the finished file to wherever you want to reach people.
CAC down up to 80%. Conversion up to 10×.
From customers running this today.
Watch it work
A real, niche audience, built in Claude in under two minutes.
Illustrative. Actual compositions vary by brand.
Curious what this looks like for your shop?
The squeeze
The data industry has been selling broken signals for years. Performance marketers running volume have felt it every day, and most won't say it out loud.
The platforms want you targeting broadly. They take your seed data, expand it, and optimize toward a stable ROAS band somewhere around 2–3×. The budgets keep flowing. The efficiency doesn't move.
That works if
It breaks if
So you end up cycling campaigns constantly, trying to recover performance from a system designed to flatten your inputs.
Sources: Paddle, How is CAC Changing Over Time (2024). AdExchanger, More Performance, Less Transparency: Inside Meta's Advantage+ Shopping Black Box (Dec 2022). Shopify Q1 2025 earnings. Meta Advantage+ product documentation.
The alpha now sits in the signal layer underneath.
What you actually get
Watt Audiences composes audiences the way your best operator would, if they had 145,000+ behavioral signals at their fingertips. Lives in the Claude org your team already uses, alongside whatever else you've built there.
It:
No UI to learn. No seat licenses. You own the logic.

In production today
Their clients sell physical products where the last-mile sale is geographic, so they built their audiences around 25–50 mile radii drawn off specific points on a map. They scaled from 200 campaigns per client to 1,000+ in the same headcount.
Their team adjusts the ratio of signals continuously: a tighter household-income gate one week, a wider category affinity the next. The audiences recompose against the latest behavioral data overnight. The product isn't replacing their expertise. It's the surface their expertise composes on.
Campaigns per client
Radius granularity
Audience refresh
$100M beauty brand customer cut acquisition cost by 80% through autonomous ICP analysis and lookalike agents built on Watt.
National men's health customer increased top-of-funnel conversion rate 24× through autonomous audience refinement agents running on the Signal Graph.
Self-qualify
This works best for agencies and operators who already know what they're doing. We make your power users 10× more effective. You're a strong fit if:
Three patterns from agencies running this today, across very different verticals.
Niche products · thin signal
Meta's prebuilt interests don't know what a bioplastics buyer looks like. Watt surfaces:
Regulated industries · sparse menus
When the platform's interest taxonomy has nothing useful and demographic categories are off-limits, Watt surfaces behavioral signal that does the same job, legally:
Hyper-local DTC
Stores, dispensaries, service businesses. Anything where the customer has to physically get there. Watt builds audiences as compositions of:
If your audience is hard to find on Meta's dropdown menus, that's exactly the audience Watt is built for.
The engagement
A 3–5 day forward-deployed engagement. 30–60 minutes of your team's time total. We handle the rest.
01
Interview
30–60 minutes with your team. What makes your campaigns good, which signals you weight, the verticals you serve, the platforms you push to.
02
Build
We build the Claude skill(s) tailored to your agency's workflow. Your team's Signal Engineer composes the prompts, the signal taxonomies, the channel outputs. 3–5 days end to end.
03
Install
You install it in your Claude organization. Your team starts prompting it daily. We're available for tuning while you ramp.
04
Own it
The skill, the prompts, the audiences: yours. No platform login, no consulting retainer, no long-term lock-in.
CAC down up to 80%. Conversion up to 10×. From customers running this in production today.
For consumer brands and performance agencies ready to compete on signal nobody else carries. Pick something niche. We'll show you the audience.