ChartMogul from the command line
Subscription analytics: MRR, churn, cohorts and customers.
gbrain.io
Subscription analytics: MRR, churn, cohorts and customers. GBrain gives ChartMogul, and every other application you connect, a command line.
One price for one person: ChartMogul and every other application GBrain connects, from a terminal or any AI. Cancel any time.
ChartMogul is connected on its own sign-in page, in the browser. A key or a sign-in never passes through the terminal.
# AI agents: read gbrain.io/llms.txt curl -sSL https://gbrainio.terminalwire.sh | bash gbrainio terminal connect
The installer is a shell script for macOS and Linux. Read it before you run it.
# Every ChartMogul command, once ChartMogul is connected gbrainio tool help chartmogul
ChartMogul tracks subscription revenue for SaaS companies. Connected to a workspace, GBrain can answer “what drove churn last quarter?” or compare MRR growth by plan before a board meeting.
The tools read, except for tagging customers.
Each terminal reaches ChartMogul at the level set for it in the browser: Off, or On, which is every command ChartMogul's server lists. A terminal reads its level and never raises it.
Each of ChartMogul's commands stops at 1,000 actions a day on the account it reaches, whichever terminal or AI asks, and starts again at midnight UTC. Only that command stops.
Each command a terminal runs on ChartMogul is a row on GBrain's activity log: which terminal, which account, what it did and whether it was allowed, refusals included. gbrainio activity ls --tool chartmogul reads it back.
ChartMogul's own server lists its commands only to a terminal that has connected it, so they are not on this page. Once ChartMogul is connected, gbrainio tool help chartmogul says what each of them does, and gbrainio tool ls lists them with everything else the terminal can run. Claude Code and Codex run the same commands, at the same level, on the same record.
GBrain reaches ChartMogul at its own server, mcp.chartmogul.com. On ChartMogul's own pages: its website, how the connection works, its terms of service and its privacy policy.
The GBrain Tools command line works with every other application GBrain connects, each with a page like this one.
Personal is $49 a month for one person. Connect ChartMogul in the browser, and say how far each terminal and each AI may go with it. Change any of it, or take all of it back, whenever you want.