cal.com
Booking for consulting calls. Free plan covers everything I need. Stripe connected directly - payment taken at booking, no chasing invoices. Replaced Calendly and the booking module I was paying GHL for.
What we like
- ✓Free plan is genuinely complete - no upsell pressure
- ✓Open source - can self-host if needed
- ✓Stripe integration built in - payment at booking
- ✓Clean booking page with no cal.com branding on free tier
- ✓Works with Google Calendar, Outlook, and iCloud
Watch out for
- ✕Team features require paid plan
- ✕Custom domain requires paid plan
- ✕Workflow automations (reminders etc.) are limited on free
Consulting calls are $197/hour. Payment happens at booking. cal.com handles both.
Before the sovereign stack, booking was part of GHL. Technically it worked. But it was one more reason I was locked into a $1,100/month platform. cal.com is free, open source, and does the job better.
Every tool in the sovereign stack has one job. cal.com's job is to make it frictionless to book and pay for a call. It does that. Nothing else required.
AI Avengers Lab
This guide gives you the architecture.
The Lab gives you the working code.
Stop reading about the sovereign stack. Start building it. Lab members get every script, every config file, and weekly live sessions where we ship new integrations together.
- Full working code: DuckDB CRM schema, Mailgun wrapper, Claude Code config
- Weekly live builds — we add new integrations together
- Private community of operators building sovereign AI stacks
- Direct access to Manoj — ask questions, get real answers
Cancel anytime. No contracts.
1-on-1 with Manoj
Want me to look at your specific setup?
Book a 1-hour session. Bring your stack, your tools, your blockers. I tell you exactly what to build first. $197.