--- title: "Connect Clientary to OpenHolidays API - APIANT.ai" description: "When \"New Expense\" fires in Clientary, your agent runs \"Find Public Holidays by Date\" in OpenHolidays API." canonical: "https://apiant.ai/connect/clientary-to-openholidays-api" --- # Connect Clientary to OpenHolidays API When **New Expense** fires in [Clientary](https://apiant.ai/connections/clientary), 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. Clientary **3** triggers Clientary **14** 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 Clientary 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 Clientary can start in OpenHolidays API - When **New Expense** in Clientary then **Find Public Holidays by Date** in OpenHolidays API - When **New Invoice** in Clientary 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 Clientary and OpenHolidays API ## Triggers and actions 3 triggers · 21 actions - Trigger **New Expense** Triggers when a new expense is recorded in your Clientary account during the current fiscal year. - Trigger **New Invoice** Triggers when a new invoice is created in Clientary, optionally limited to invoices in a given status or matching a search. - Trigger **New Staff** Triggers when a new staff user is added to your Clientary account. - Action **Add comment** Posts a comment on an invoice, estimate, project, task, proposal or contract and notifies the people involved. - Action **Add contact** Creates a new contact (an individual person) under an existing Clientary client. - Action **Add contract** Creates a contract for a client in Clientary, optionally starting from a contract template, with its sections and signers. - Action **Add proposal** Creates a proposal for a client in Clientary, optionally starting from a proposal template, with its sections and signers. - Action **Add retainer** Creates a retainer for a client in Clientary: an up-front payment request kept apart from ordinary invoices. - Action **Client** Creates a new client in Clientary with its name, address, tax id, website and description. - Action **Create Estimate** Creates an estimate in Clientary, optionally for a client, with its dates, taxes, notes and line items. - Action **Create Invoice** Creates an invoice in Clientary, optionally for a client, with dates, currency, taxes, notes and line items. - Action **Create Lead** Creates a new lead (a prospective client) in Clientary. - Action **Create Task** Creates a new task (a to-do item) in Clientary, optionally on a project and assigned to a staff member. - Action **Expense** Creates a new expense in Clientary, optionally assigned to a client or project. - Action **Get client** Returns a single Clientary client by its ID, including its contact and address details. - Action **List comments** Returns the comments on one Clientary invoice, estimate, project, task, proposal or contract, newest first. - Action **Update contract** Updates an existing Clientary contract: its subject, date, client, status, signers or sections. Only a draft contract can be changed; void and reopen a sent contract first. - 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 - [ **Clientary** Online invoicing and time tracking for small businesses and freelancers.](https://apiant.ai/connections/clientary) - [ **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 Clientary - [ **Clientary to HubSpot** HubSpot is your all-in-one stop for all of your marketing software needs.](https://apiant.ai/connect/clientary-to-hubspot) - [ **Clientary to Salesforce** Salesforce is a leading enterprise customer relationship management (CRM) platform.](https://apiant.ai/connect/clientary-to-salesforce) - [ **Clientary to Slack** Slack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...](https://apiant.ai/connect/clientary-to-slack) - [ **Clientary to Google Sheets** Google Sheets](https://apiant.ai/connect/clientary-to-google-sheets) - [ **Clientary to Gmail** Gmail is Google’s email service, featuring spam protection, search functions, and seamless integration with...](https://apiant.ai/connect/clientary-to-gmail) - [ **Clientary to Google Calendar** Google Calendar is a time management tool providing scheduling features, event reminders, and integration...](https://apiant.ai/connect/clientary-to-google-calendar) ## 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](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 ## Clientary and OpenHolidays API, answered ### ### What can start an automation from Clientary? Any of Clientary's 3 triggers in the catalog, including New Expense, New Invoice and New Staff. 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 Clientary? 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 Clientary? OpenHolidays API has no triggers in the catalog today, so automations start in Clientary. 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 Clientary 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 Clientary 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.