# Connect CLOSUM to MailboxValidator When **New Lead** fires in [CLOSUM](https://apiant.ai/connections/closum), your agent runs **Check disposable email** in [MailboxValidator](https://apiant.ai/connections/mailboxvalidator). Describe the whole flow and it is built, tested on every scenario and kept running. CLOSUM **1** trigger CLOSUM **3** actions MailboxValidator **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 CLOSUM and MailboxValidator to do together? 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 (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 CLOSUM can start in MailboxValidator - When **New Lead** in CLOSUM then **Check disposable email** in MailboxValidator - When **New Lead** in CLOSUM then **Check free email** in MailboxValidator 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 CLOSUM and MailboxValidator ## Triggers and actions 1 trigger · 6 actions - Trigger **New Lead** Fires once for each new lead added in Closum. - Action **Add Lead** Add a new lead to account - Action **Get lead** Get a lead by id. - Action **List leads** List leads. - Action **Check disposable email** Checks whether an email address comes from a disposable (temporary) email provider. - Action **Check free email** Checks whether an email address comes from a free email provider such as Gmail or Hotmail. - Action **Validate Email** Validates a single email address and returns its syntax, domain, mailbox (SMTP), disposable, free, role and risk checks plus an overall MailboxValidator score. ## Each app on its own - [ **CLOSUM** Closum is a inbound marketing platform, focused on small and medium companies to do their own landing pages...](https://apiant.ai/connections/closum) - [ **MailboxValidator** Easy to use email list cleaning service to improve delivery success rate.](https://apiant.ai/connections/mailboxvalidator) Reviews ## What our customers say ## More from CLOSUM - [ **CLOSUM to HubSpot** HubSpot is your all-in-one stop for all of your marketing software needs.](https://apiant.ai/connect/closum-to-hubspot) - [ **CLOSUM to Salesforce** Salesforce is a leading enterprise customer relationship management (CRM) platform.](https://apiant.ai/connect/closum-to-salesforce) - [ **CLOSUM to Slack** Slack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...](https://apiant.ai/connect/closum-to-slack) - [ **CLOSUM to Google Sheets** Google Sheets](https://apiant.ai/connect/closum-to-google-sheets) - [ **CLOSUM to Gmail** Gmail is Google’s email service, featuring spam protection, search functions, and seamless integration with...](https://apiant.ai/connect/closum-to-gmail) - [ **CLOSUM to Google Calendar** Google Calendar is a time management tool providing scheduling features, event reminders, and integration...](https://apiant.ai/connect/closum-to-google-calendar) ## More into MailboxValidator - [ **HubSpot to MailboxValidator** HubSpot is your all-in-one stop for all of your marketing software needs.](https://apiant.ai/connect/hubspot-to-mailboxvalidator) - [ **Salesforce to MailboxValidator** Salesforce is a leading enterprise customer relationship management (CRM) platform.](https://apiant.ai/connect/salesforce-to-mailboxvalidator) - [ **Slack to MailboxValidator** Slack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...](https://apiant.ai/connect/slack-to-mailboxvalidator) - [ **Google Sheets to MailboxValidator** Google Sheets](https://apiant.ai/connect/google-sheets-to-mailboxvalidator) - [ **Gmail to MailboxValidator** Gmail is Google’s email service, featuring spam protection, search functions, and seamless integration with...](https://apiant.ai/connect/gmail-to-mailboxvalidator) - [ **Google Calendar to MailboxValidator** Google Calendar is a time management tool providing scheduling features, event reminders, and integration...](https://apiant.ai/connect/google-calendar-to-mailboxvalidator) Questions ## CLOSUM and MailboxValidator, answered ### ### What can start an automation from CLOSUM? Any of CLOSUM's 1 trigger in the catalog, including New Lead. Describe the moment in plain language and your agent picks the right one. ### ### What can your agent do in MailboxValidator when something happens in CLOSUM? Any of MailboxValidator's 3 actions, including Check disposable email, Check free email and Validate Email. Your agent maps the data both ways and tests every scenario before it ships. ### ### Can it also run from MailboxValidator to CLOSUM? MailboxValidator has no triggers in the catalog today, so automations start in CLOSUM. If you need the other direction, ask: your agent reads MailboxValidator's API documentation and adds it. ### ### Do I have to build a connector for CLOSUM or MailboxValidator? 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. ### ### 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.