Calendar

Connect OpenHolidays API to any app

Public and school holidays for many countries via an open REST API

No account neededopenholidaysapi.org
7 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 OpenHolidays API?

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Connect your AI client

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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 (opens in a new tab)
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 (opens in a new tab)
Cursor

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

Setup guide (opens in a new tab)
Zed

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

Setup guide (opens in a new tab)
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.

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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 (opens in a new tab)

Popular

OpenHolidays API with the apps people pair it with most

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What your agent can do with OpenHolidays API

Triggers and actions 7 actions

  • Action
    Find Public Holidays by Date

    returns public holidays from ALL countries on a given date.

  • Action
    Find School Holidays by Date

    returns school holidays from ALL countries on a given date.

  • Action
    List Countries

    returns the list of all supported countries (isoCode + localized names).

  • Action
    List Languages

    returns the list of all languages used in the API's localized name fields.

  • Action
    List Public Holidays

    Returns the list of public holidays for a given country and date range (countryIsoCode, validFrom, validTo, languageIsoCode).

  • Action
    List School Holidays

    returns the list of official school holidays for a given country and date range (countryIsoCode, validFrom, validTo, languageIsoCode, subdivisionCode).

  • Action
    List Subdivisions

    returns the list of relevant subdivisions (states/regions) for a supported country, used as the subdivisionCode param on School Holidays calls.

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Questions

OpenHolidays API, answered

What can your agent do in OpenHolidays API?

Any of OpenHolidays API's 7 actions, including Find Public Holidays by Date, Find School Holidays by Date, List Countries and List Languages. Your agent maps the data both ways and tests every scenario before it ships.

Which apps can OpenHolidays API connect to?

Any app in the catalog; the list on this page pairs OpenHolidays API 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.