Kalendis – Scheduling API (keep your UI, we handle timezones/DST)

In plain words

Kalendis is an API-first scheduling backend that handles timezone conversions, daylight saving time, recurrence rules, and conflict-safe bookings. Developers keep their own user interface while delegating the complex scheduling logic to Kalendis. It includes tools to generate typed clients and API route handlers for Next.js, Express, Fastify, and Nest, plus an availability engine that manages recurring rules and exceptions. It is designed for developers building scheduling features who want to avoid rebuilding common scheduling infrastructure.

written from the facts on this page · September 2026

From the sources

Robust scheduling backend with timezone intelligence and MCP server integration. Build custom scheduling solutions in minutes, not months.

Enterprise scheduling backend with MCP integration. Generate TypeScript, Python, Rust, Go & React clients instantly. Enterprise grade security. Start free with 3k API calls.

In the maker’s words, at launch

Kalendis is an API-first scheduling backend. You keep your UI; we handle the gnarly parts (recurrence, time zones, DST, conflict-safe bookings). What it does: • MCP tool: generates typed clients and API route handlers (Next.js/Express/Fastify/Nest) so you can scaffold calls straight from your…

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