--- title: "Connect Adyen to OpenHolidays API - APIANT.ai" description: "When \"New payment authorisation\" fires in Adyen, your agent runs \"Find Public Holidays by Date\" in OpenHolidays API." canonical: "https://apiant.ai/connect/adyen-to-openholidays-api" --- # Connect Adyen to OpenHolidays API When **New payment authorisation** fires in [Adyen](https://apiant.ai/connections/adyen), your agent runs **Find Public Holidays by Date** in [OpenHolidays API](https://apiant.ai/connections/openholidays-api). Describe the whole flow and it is built, tested on every scenario and kept running. Adyen **2** triggers Adyen **10** actions OpenHolidays API **7** actions What the catalog holds today. Ask for anything missing and your agent reads the API documentation and adds it. ## What do you want Adyen and OpenHolidays API to do together? Give your AI client this address. `https://mcp.apiant.ai` One connection does both: ask your client to act in an app once, or have it build an automation that keeps running. 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)](https://apiant.ai/docs/mcp/claude-code) ### 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)](https://apiant.ai/docs/mcp) ### 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)](https://apiant.ai/docs/mcp) ### Zed Open Settings, then AI, then MCP Servers, then Add Server, then Add Remote Server. [Setup guide (opens in a new tab)](https://apiant.ai/docs/mcp) ### 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 (opens in a new tab)](https://apiant.ai/docs/mcp) ### 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)](https://apiant.ai/docs/mcp) Example flows ## What Adyen can start in OpenHolidays API - When **New payment authorisation** in Adyen then **Find Public Holidays by Date** in OpenHolidays API - When **New refund** in Adyen then **Find School Holidays by Date** in OpenHolidays API Starting points drawn from the triggers and actions in the catalog today. Describe the flow you need, at any depth, and your agent builds it and tests every scenario before it ships. Everything your agent can do with Adyen and OpenHolidays API ## Triggers and actions 2 triggers · 17 actions - Trigger **New payment authorisation** Webhook AUTHORISATION: result of authorisation request. - Trigger **New refund** Webhook REFUND: result of refund request. - Action **Add payment** Starts a payment (authorisation) in Adyen Checkout for the given amount, payment method and merchant account, and returns the payment's PSP reference and result code. - Action **Add payment link** Creates an Adyen Pay by Link payment link that a shopper can open to pay the given amount. - Action **Cancel payment** Cancels an authorised payment that has not been captured yet, releasing the funds back to the shopper. The final outcome arrives later in Adyen's CANCELLATION webhook. - Action **Capture payment** Captures an authorised payment (full or partial amount). Adyen processes the capture asynchronously: the response always has status "received" and the final outcome arrives later in a CAPTURE webhook. - Action **Delete stored payment method** Deletes (disables) a shopper's stored payment details token in Adyen. - Action **Get payment link** Retrieves the details of a payment link, including its amount, status (active, completed, expired or paymentPending), url and expiry. - Action **List payment methods** Retrieves the payment methods available for a transaction, based on details such as amount, country and currency, plus the shopper's stored payment methods when a shopper reference is given. - Action **List stored payment methods** Lists the tokens for payment details stored for a shopper, with a summary of each stored card or account. - Action **Refund payment** Refunds a captured Adyen payment, fully or partially. Adyen acknowledges the request immediately; the final outcome arrives later in a REFUND notification. - Action **Update payment link** Updates the status of an Adyen payment link. Adyen only allows setting the status to expired, which forces the link to expire so shoppers can no longer pay with it. - 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. ## Each app on its own - [ **Adyen** Payment infrastructure platform enabling enterprises to accept, settle, and move funds globally with...](https://apiant.ai/connections/adyen) - [ **OpenHolidays API** Public and school holidays for many countries via an open REST API](https://apiant.ai/connections/openholidays-api) Reviews ## What our customers say ## More from Adyen - [ **Adyen to Gravity Forms** Gravity Forms is a premier WordPress plugin that makes it easy to create powerful forms on the fly.](https://apiant.ai/connect/adyen-to-gravity-forms) - [ **Adyen to BigML** BigML is a machine learning platform for building, evaluating, and running predictive models.](https://apiant.ai/connect/adyen-to-bigml) - [ **Adyen to Erpnext** Open-source ERP system for accounting, inventory, manufacturing, sales, projects, and CRM.](https://apiant.ai/connect/adyen-to-erpnext) - [ **Adyen to Gift Up!** Gift Up! is a digital gift card system for your website or Facebook page.](https://apiant.ai/connect/adyen-to-gift-up) - [ **Adyen to Google Slides** Google Slides is a cloud-based presentation editor with real-time collaboration, template gallery, and...](https://apiant.ai/connect/adyen-to-google-slides) - [ **Adyen to Rocketlane** Rocketlane is a collaborative customer onboarding platform that helps you shorten time to value and deliver...](https://apiant.ai/connect/adyen-to-rocketlane) ## More into OpenHolidays API - [ **HubSpot to OpenHolidays API** HubSpot is your all-in-one stop for all of your marketing software needs.](https://apiant.ai/connect/hubspot-to-openholidays-api) - [ **Salesforce to OpenHolidays API** Salesforce is a leading enterprise customer relationship management (CRM) platform.](https://apiant.ai/connect/salesforce-to-openholidays-api) - [ **Slack to OpenHolidays API** Slack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...](https://apiant.ai/connect/slack-to-openholidays-api) - [ **Google Sheets to OpenHolidays API** Google Sheets is Google's online spreadsheet app for creating, editing and sharing spreadsheets.](https://apiant.ai/connect/google-sheets-to-openholidays-api) - [ **Gmail to OpenHolidays API** Gmail is Google’s email service, featuring spam protection, search functions, and seamless integration with...](https://apiant.ai/connect/gmail-to-openholidays-api) - [ **Google Calendar to OpenHolidays API** Google Calendar is a time management tool providing scheduling features, event reminders, and integration...](https://apiant.ai/connect/google-calendar-to-openholidays-api) Questions ## Adyen and OpenHolidays API, answered ### ### What can start an automation from Adyen? Any of Adyen's 2 triggers in the catalog, including New payment authorisation and New refund. Describe the moment in plain language and your agent picks the right one. ### ### What can your agent do in OpenHolidays API when something happens in Adyen? 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. ### ### Can it also run from OpenHolidays API to Adyen? OpenHolidays API has no triggers in the catalog today, so automations start in Adyen. If you need the other direction, ask: your agent reads OpenHolidays API's API documentation and adds it. ### ### Do I have to build a connector for Adyen or OpenHolidays API? No. Both are in the catalog with their triggers and actions. You describe the automation; your agent builds it, tests every scenario and keeps it running. ### ### Can my AI client use Adyen and OpenHolidays API without building an automation? Yes. With your AI client connected to APIANT, ask it to do something in either app once and it runs that action on the spot. Ask for an automation and your agent builds it, tests every scenario and keeps it running. One connection covers both. ### ### 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.