Social Calendar (free tool + API)

Hey there!

We’ve shipped a new free tool: Social Calendar 2026. It’s a curated social media calendar with holidays, awareness days, cultural moments, commerce dates, plus “Sensitive” and “No Post” days so you don’t accidentally schedule something tone-deaf.

The calendar is completely free to browse and you can use it without an account.

On top of that, the same dataset is available via a public Calendar API with filtering (country, category, type, tags, date range, search) and no authentication required. You can plug it directly into your automations, content pipelines, or agent workflows.

Browse the calendar here: https://postproxy.dev/calendar/
Use it via API (docs + examples): https://postproxy.dev/reference/calendar/

If you’re publishing to social platforms, planning campaigns, or building automation tools that depend on “what’s happening this week,” this should save you time and a few avoidable mistakes.

Cheers,
Dmitry