The Calendar integrations

Connect The Calendar to any other app, or use it from your AI client over MCP. The Calendar publishes date-based reference data as static JSON files covering public holidays and event schedules. Callers can list public holidays for a given year by country across roughly 30 countries and by individual US state, and retrieve sports season calendars and finance-market date calendars such as market holidays. Responses are plain JSON documents fetched by country, state or year path. No credentials required.

No account neededthe-calendar.net

5 actions

What the catalog holds today. Ask for anything missing and your agent reads the API documentation and adds it.

Build solutions, not workarounds.

What do you want to automate with The Calendar?

Ask the assistant

Connect your AI client

Give your AI client this address.

https://mcp.apiant.ai

Any client that takes a remote MCP server. Nothing to install. Create your free account, then sign in once in your browser.

Set it up in your client

Claude Code

Run this in the directory you want to work in.

claude mcp add --transport http -s project apiant-ai https://mcp.apiant.ai

Start Claude Code there, approve the server, and sign in in the browser page it opens.

Claude Code guide

Claude, web and desktop

Open Customize, then Connectors, then Add custom connector, and paste the address. On Team and Enterprise an owner adds it first.

Setup guide

Cursor

Add the address to your MCP configuration as a server URL. Cursor signs you in in your browser.

Setup guide

Zed

Open Settings, then AI, then MCP Servers, then Add Server, then Add Remote Server.

Setup guide

Codex and the ChatGPT desktop app

Open Settings, then MCP servers, then Add server, and choose Streamable HTTP. From the terminal, Codex takes the address with its own add command and then signs you in.

Setup guide

Any other MCP client

Paste the address where the client asks for a remote MCP server URL, and name the server apiant-ai where it lets you. APIANT's skills reach the client over the same connection.

Setup guide

Popular

The Calendar with the apps people pair it with most

Pair it

Connect The Calendar with another app

What your agent can do with The Calendar

Triggers and actions 5 actions

Action
Get country holidays
Return the list of public holidays for a given country and year.
Action
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).
Action
Get sports schedule
Return key schedule/calendar dates for a sports league or team.
Action
Get US federal holidays
Return the list of US federal holidays for a given year.
Action
Get US state holidays
Return the list of state-observed holidays for a given US state and year.

Related apps

What our customers say

Questions

The Calendar, answered

Is there a The Calendar MCP server?

APIANT's MCP server at https://mcp.apiant.ai works with The Calendar. Add that address to any AI client that takes a remote MCP server, sign in once in your browser, and your client can build, test and run automations that use The Calendar. Nothing to install.

What can your agent do in The Calendar?

Any of The Calendar's 5 actions, including Get country holidays, Get finance calendar, Get sports schedule and Get US federal holidays. Your agent maps the data both ways and tests every scenario before it ships.

Which apps can The Calendar connect to?

Any app in the catalog; the list on this page pairs The Calendar with each of them. If the other app is missing, point your agent at its API documentation and it builds the connector.

What happens when something fails?

Your agent works that out for you. It plans the failure paths along with the happy path, then tests every scenario before it ships.

Is there a free plan?

Yes. Every plan includes the agent, including free, and building from your own AI client spends no assistant credits.