Engineering insights, product updates, and technical deep dives from the Slotflow team.
March 22, 2026 · 8 min read
Calendly has no API endpoint to confirm a booking programmatically. A human must complete the flow. Here is exactly where that breaks AI agent workflows and what to use instead.
March 21, 2026 · 9 min read
The Google Calendar API tells you when someone is busy. It does not tell you when they are free. Here is exactly what it returns, what you have to build yourself, and why that gap matters when an AI agent is doing the booking.
March 16, 2026 · 8 min read
After a decade building scheduling software for thousands of real businesses, here's why availability computation is deceptively complex — and why AI agents will face every one of these problems.
March 14, 2026 · 3 min read
AI agents can sell, support, and qualify — but they can't book a meeting. We built the API to fix that.