Calendera
Public and school holidays for 38 European countries and their regions, with a year calendar and leave planner inside the conversation.
- Brand
- Calendera
- Category
- Productivity
- Primary Subcategory
- Calendar & Scheduling Apps
Integration details
Description
Calendera answers questions about public and school holidays across Europe — 38 countries and their regions, in the languages each country publishes them in. Ask which days are public holidays in Bavaria next year, when the school holidays fall in Vaud, or where in Europe 3 October is a day off, and Claude answers from the dates the regions actually keep: school terms, days moved off a weekend and each region's own holidays included; town festivals that are nobody's day off left out. Where a country's regions keep different holidays — Germany, Switzerland, Spain, Italy and others — the answer says so and names the regions, rather than passing a national list off as anyone's year. Ask to see a year and it opens as a calendar in the conversation: public holidays, school holidays and bridge days marked, in the region's own language. Its leave planner shows how far a few days off go — click the days you would take, see how many days in a row they add up to, and share the plan into the conversation. The dates come from the OpenHolidays API (Open Database Licence), gov.uk (Open Government Licence) and the statutes of Cyprus, Denmark, Greece and Türkiye, republished by calendera.org and refreshed every morning. No account and no sign-in; every tool only reads.
- Integration type
- Connector
- Verification status
Community connector- Platform
- Claude
- Primary Subcategory
- Calendar & Scheduling Apps
- Secondary Subcategories
- None listed
- Brand
- Calendera
- Access
- No account required
- First tracked
- 2026-09-29
- Tool count
- 4
- Geography
- US
The Primary Subcategory used for this profile’s headline score.
Other Subcategories where the Integration is listed.
Claude Connector discovery is coming soon
Community Connectors only appear in Claude’s registry.Once verified, organic discovery begins and we can calculate your score.Read more about Community Connector verification.
No spam. Unsubscribe any time.
What discovery looks like

Claude can surface verified Connectors when they match a user’s Prompt.
How Claude Connector discovery works
Your Connector will compete to appear for users’ Prompts once Claude verifies it
Competing in Claude Calendar & Scheduling Apps
View Category4 tools agents can invoke
Calendera Claude Connector FAQ
How the directory, categories and Discoverability Score work.
Read the methodologyHow do I improve Calendera's Claude Connector discoverability?
The levers are the listing surface agents actually read: names, descriptions, keywords, tool metadata, and registry health. Which lever matters depends on where discovery breaks, which is what continuous measurement shows.
What are Calendera alternatives on Claude?
As of 2026-10-24, Calendera competes with Google Calendar, Microsoft 365, Superhuman Mail, Gmail, Reclaim.ai, Circleback, Fastmail, Calendly and 18 more in Claude Calendar & Scheduling Apps, ranked by public Discoverability Score.
Where is this profile measured?
This profile uses the geography attached to the latest public registry snapshot: US. Locale tags are intentionally omitted.