Build custom audiences in minutes — describe the people you want to reach in plain English, and Watt discovers the signals behind the idea: what exists, how big and how fresh each signal is, and what's adjacent. When you want the people and not just the understanding, Watt builds the audience, reads who it reaches, and exports it as a platform-ready file for Meta or Google.
Watt runs on Signal Graph — petabytes of raw signals traversed in seconds, reached through its connector. Work that used to take teams of data engineers, scientists, and analysts now happens in a conversation.
In Claude Code, run two commands.
1. Add the Watt marketplace (this GitHub repo):
/plugin marketplace add wattdata/plugin
2. Install the plugin (watt@watt — the watt plugin from the watt marketplace):
/plugin install watt@watt
Restart Claude Code, then run any /watt command.
/watt:explore— interrogate Signal Graph for an idea: what's there, how big and fresh, and what related angles are worth a look. Read-only./watt:audience— when you want the actual people: build an audience to a size you pick, the widest reach, or the highest-intent few; profile a market to see who's in it; read who an audience reaches; or export it to Meta or Google. You can also start from a list you own — match it, expand it, or learn what defines it./watt:configure— a short guided walkthrough if you're new./watt:help— what Watt can do, whether the data you need exists (it goes and checks), or reach the team.
- Claude Code with plugin support.
- Python 3 on your PATH — Watt's local helpers run on it.
- A Watt account — sign-in is handled on first use.
- US-only data; person audiences; adults only.
The repository root is the plugin — the marketplace catalog and the plugin manifest sit side by side, with the plugin's components at the top level.
.claude-plugin/
marketplace.json the marketplace catalog
plugin.json the plugin manifest
skills/ hooks/ context/ scripts/ output-styles/
.mcp.json the MCP server declaration for Signal Graph