--- title: "Connect User.com to Tax ID Pro - APIANT.ai" description: "When \"New Company\" fires in User.com, your agent runs \"Validate tax ID\" in Tax ID Pro." canonical: "https://apiant.ai/connect/user-com-to-tax-id-pro" --- # Connect User.com to Tax ID Pro When **New Company** fires in [User.com](https://apiant.ai/connections/user-com), your agent runs **Validate tax ID** in [Tax ID Pro](https://apiant.ai/connections/tax-id-pro). Describe the whole flow and it is built, tested on every scenario and kept running. User.com **3** triggers User.com **4** actions Tax ID Pro **3** actions What the catalog holds today. Ask for anything missing and your agent reads the API documentation and adds it. ## What do you want User.com and Tax ID Pro 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 User.com can start in Tax ID Pro - When **New Company** in User.com then **Validate tax ID** in Tax ID Pro - When **New Event** in User.com then **Validate tax IDs in batch** in Tax ID Pro 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 User.com and Tax ID Pro ## Triggers and actions 3 triggers · 7 actions - Trigger **New Company** Triggers when new company instance is created. - Trigger **New Event** Triggered for every new event occurrence. - Trigger **New User** Triggers when new user is created. - Action **Create Event** Create a new event for a specific user. - Action **Create/Update Company** Creates new company instance. - Action **Find Company** Finding an existing company. - Action **Find User** Finds an existing user. - Action **List formats** Returns every tax ID format Tax ID Pro supports, with its country, name, abbreviation and whether it applies to individuals, entities or VAT. - Action **Validate tax ID** Checks whether a tax ID number is valid for a given country and returns its compact and standard formats, the country name and the format name, or a message explaining why it is invalid. - Action **Validate tax IDs in batch** Checks a list of tax ID numbers from many countries in one run and returns a validity result for each, matched back by your own reference. ## Each app on its own - [ **User.com** UserEngage is a marketing automation system that connects all data about your customers with all the...](https://apiant.ai/connections/user-com) - [ **Tax ID Pro** API and tools to validate tax ID numbers for 100+ countries in real time.](https://apiant.ai/connections/tax-id-pro) Reviews ## What our customers say ## More from User.com - [ **User.com to Zoom** Zoom unifies cloud video conferencing, simple online meetings, group messaging, and a software-based...](https://apiant.ai/connect/user-com-to-zoom) - [ **User.com to Webflow** Webflow is a professional website builder and CMS for designing, building, and launching responsive...](https://apiant.ai/connect/user-com-to-webflow) - [ **User.com to Wix** The Wix website builder gives businesses of any size the tools to create, manage and grow a fully integrated...](https://apiant.ai/connect/user-com-to-wix) - [ **User.com to LinkedIn** LinkedIn is a professional networking platform enabling job seekers, companies, and thought leaders to...](https://apiant.ai/connect/user-com-to-linkedin) - [ **User.com to Facebook** Facebook is a social media and advertising platform used by individuals and businesses to connect, share...](https://apiant.ai/connect/user-com-to-facebook) - [ **User.com to Anthropic** Anthropic builds Claude, a family of large language models.](https://apiant.ai/connect/user-com-to-anthropic) ## More into Tax ID Pro - [ **HubSpot to Tax ID Pro** HubSpot is your all-in-one stop for all of your marketing software needs.](https://apiant.ai/connect/hubspot-to-tax-id-pro) - [ **Salesforce to Tax ID Pro** Salesforce is a leading enterprise customer relationship management (CRM) platform.](https://apiant.ai/connect/salesforce-to-tax-id-pro) - [ **Slack to Tax ID Pro** Slack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...](https://apiant.ai/connect/slack-to-tax-id-pro) - [ **Google Sheets to Tax ID Pro** Google Sheets](https://apiant.ai/connect/google-sheets-to-tax-id-pro) - [ **Gmail to Tax ID Pro** Gmail is Google’s email service, featuring spam protection, search functions, and seamless integration with...](https://apiant.ai/connect/gmail-to-tax-id-pro) - [ **Google Calendar to Tax ID Pro** Google Calendar is a time management tool providing scheduling features, event reminders, and integration...](https://apiant.ai/connect/google-calendar-to-tax-id-pro) Questions ## User.com and Tax ID Pro, answered ### ### What can start an automation from User.com? Any of User.com's 3 triggers in the catalog, including New Company, New Event and New User. Describe the moment in plain language and your agent picks the right one. ### ### What can your agent do in Tax ID Pro when something happens in User.com? Any of Tax ID Pro's 3 actions, including List formats, Validate tax ID and Validate tax IDs in batch. Your agent maps the data both ways and tests every scenario before it ships. ### ### Can it also run from Tax ID Pro to User.com? Tax ID Pro has no triggers in the catalog today, so automations start in User.com. If you need the other direction, ask: your agent reads Tax ID Pro's API documentation and adds it. ### ### Do I have to build a connector for User.com or Tax ID Pro? 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 User.com and Tax ID Pro 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.