Integration
Connect thanks.io to The Calendar
When something happens in thanks.io, your agent does the next thing in The Calendar. Describe it in plain language and the automation is built, tested on every branch and kept running.
Build it
What do you want thanks.io and The Calendar to do together?
Describe it and your agent reads both APIs, builds the automation, tests every branch and ships it. The list below is what exists today, not the limit.
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Or work from Claude Code
Install the APIANT plugin for Claude Code and build, edit, test and read run history from your terminal. Every plan gets this, including free, and it spends no assistant credits.
Connect Claude CodeEverything your agent can do with thanks.io and The Calendar
Triggers and actions 3 triggers · 8 actions
Trigger
Item DeliveredTriggers when a postcard, letter, notecard, or giftcard is delivered to a recipient.
- New Order
Fires once for each new order placed in your thanks.io account.
- QR Code Scan
Triggers when a QR Code on a postcard, letter, or notecard is scanned. This will also trigger when a giftcard is redeemed.
- Add Recipient
Adds a recipient to your account and to an optional list. Only US or Canadian addresses are accepted. If no/invalid address is specified and a valid email address is, we'll attempt to look up a valid street address using the email address for a fee.
- Delete Recipient
Deletes a Recipient from Mailing List.
- Lookup Address by Email
Returns the mailing address on file for a recipient in a thanks.io mailing list, looked up by their email address. Returns an empty list of matches when no recipient in that list has the email.
Action
Get country holidaysReturn the list of public holidays for a given country and year. GET https://the-calendar.net/api/holidays/by-country/{country-slug}/{year}.json (~30 countries, 2026 published, e.g. united-kingdom, canada, australia, germany, japan). Response: {country, kind, year, source, holidays:[{name,date,observed,weekday,note}]}. No auth.
- Get finance calendar
Return a US finance-related date calendar for a given year and calendar type: fomc (Fed meeting dates), tax-deadlines, or market-holidays (stock market closures). GET https://the-calendar.net/api/finance/{fomc|tax-deadlines|market-holidays}/{year}.json. No auth.
- Get sports schedule
Return key schedule/calendar dates for a sports league or team. GET https://the-calendar.net/api/sports/{slug}.json where slug is one of: nfl-schedule, nba-schedule, mlb-schedule, nhl-schedule, mls-schedule, premier-league-schedule, la-liga-schedule, champions-league-schedule, f1-2026-calendar, real-madrid-calendar, fc-barcelona-calendar, manchester-united-calendar. No auth.
- Get US federal holidays
Return the list of US federal holidays for a given year. GET https://the-calendar.net/api/holidays/us-federal/{year}.json (years 2025-2028 published). Response: {country, kind, year, source, holidays:[{name,date,observed,weekday,note}]}. No auth.
- Get US state holidays
Return the list of state-observed holidays for a given US state and year. GET https://the-calendar.net/api/holidays/by-state/{state-slug}/{year}.json (all 50 states, 2026 published). Response: {country, kind, year, source, holidays:[{name,date,observed,weekday,note}]}. No auth.
No trigger or action matches that. Ask your agent to add it: it reads the API documentation and builds what you describe.