You just don't know it yet.
Contract OS reads your Gmail, watches your calendar, and monitors your contract terms — alerting you the moment a client crosses a line.
5
Signal types
6h
Sync cadence
100%
Open source
See it in action
Real-time intelligence
Every email, every calendar event, every silence — parsed against your contract terms. When something breaks, Contract OS fires a signal and drafts your response.
Monitors 5 signal types
Scope, payment, revisions, delays, deadlines
Auto-drafts your push-back email
AI-written, clause-cited, ready to send
Fires alerts before it's too late
Catch issues at WARNING, not at BREACH
The problem
€4,200
avg unpaid work per year
Scope creep
Each "small request" feels harmless. Together they add up to weeks of unbillable work you never agreed to.
47 days
average payment delay
Late payments
Invoices go overdue silently. By the time you notice, chasing payment feels awkward and you've lost leverage.
3.2×
avg revisions requested
Revision abuse
"Just one more change" — said eight times. You agreed to two rounds. Nobody's counting. But Contract OS is.
How it works
Paste your API keys. Contract OS ingests your active contracts from Notion and starts watching your Gmail and Google Calendar for breach signals.
Claude AI cross-references every incoming message and calendar update against your contract terms — spotting scope creep, payment delays, and revision abuse before they compound.
The moment a breach is detected, Contract OS fires a signal with severity level, evidence, and a clause-cited email draft — ready to copy and send in one click.
Live dashboard
Total Value
£0
across 5 contracts
Active Signals
0
1 breach, 2 warnings
Health Score
0
avg across contracts
Emails Drafted
0
this month
Built different
Five signal types
Scope creep, payment breach, revision abuse, feedback delay, and deadline risk — all detected automatically.
AI email drafts
Claude writes your push-back email with clause citations the moment a breach fires. One click to send.
Health scoring
Every contract gets a live health score. Watch it trend before problems become emergencies.
Calendar monitoring
Google Calendar events are parsed for deadline risks and feedback window violations in real time.
Your data only
API keys stay in your .env. Nothing is stored on our servers. Self-host in minutes.
Notion as source of truth
Your contracts live in Notion. Contract OS syncs to them — no migration, no lock-in.
Built with
Clone the repo, add your API keys, and Contract OS starts protecting your contracts immediately. No signup. No monthly fee.