--- title: "Connect MailCheck.ai and Nutshell - APIANT.ai" description: "When \"Domain added to blocklist (instant)\" fires in MailCheck.ai, your agent runs \"Create Lead\" in Nutshell." canonical: "https://apiant.ai/connect/mailcheck-ai-to-nutshell" --- # Connect MailCheck.ai and Nutshell When **Domain added to blocklist (instant)** fires in [MailCheck.ai](https://apiant.ai/connections/mailcheck-ai), your agent runs **Create Lead** in [Nutshell](https://apiant.ai/connections/nutshell), or **New Activity** in Nutshell to **Get email** in MailCheck.ai. Describe the whole flow and it is built, tested on every scenario and kept running. MailCheck.ai **4** triggers MailCheck.ai **2** actions Nutshell **6** triggers Nutshell **12** actions What the catalog holds today. Ask for anything missing and your agent reads the API documentation and adds it. ## What do you want MailCheck.ai and Nutshell 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 MailCheck.ai and Nutshell can do together ### From MailCheck.ai to Nutshell - When **Domain added to blocklist (instant)** in MailCheck.ai then **Create Lead** in Nutshell - When **Domain flagged as relay (instant)** in MailCheck.ai then **Update Lead** in Nutshell ### From Nutshell to MailCheck.ai - When **New Activity** in Nutshell then **Get email** in MailCheck.ai - When **New Company** in Nutshell then **Get domain** in MailCheck.ai 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 MailCheck.ai and Nutshell ## Triggers and actions 10 triggers · 14 actions - Trigger **Domain added to blocklist (instant)** Fires when a domain is added to the account's blocklist. - Trigger **Domain flagged as relay (instant)** Fires when a previously-looked-up domain is newly flagged as a relay/forwarding domain. - Trigger **Domain flagged as spam (instant)** Fires when a previously-looked-up domain is newly flagged as a spam domain. - Trigger **Domain unflagged as spam (instant)** Fires when a previously-looked-up domain changes from spam to non-spam. - Action **Get domain** Check a domain for disposable/relay/spam status, MX configuration, age, SPF/DMARC posture, and blocklist status. - Action **Get email** Check an email address for disposable/relay/role-account status, normalized form, and its domain's signals. - Trigger **Activity Logged** Triggers when an Activity is logged. - Trigger **Lead Won** Triggers when a lead is won. - Trigger **New Activity** Triggers when new Activity is created. - Trigger **New Company** Triggers when new Company is created. - Trigger **New Lead** Triggers when a new Lead is created. - Trigger **New Person** Triggers when new Person is created. - Action **Create Company** Creates a new Company. - Action **Create Lead** Creates a new Lead. - Action **Create Person** Creates a new Person. - Action **Find Company** Finds an existing company. - Action **Find Lead** Finds an existing lead by a particular field. Defaults to searching open leads, falls back to all leads. - Action **Find Person** Finds an existing person. - Action **Find User** Finds an existing User. - Action **Log Activity** Creates and logs a new Activity. - Action **Update Company** Updates an existing Company. - Action **Update Lead** Updates an existing Lead. - Action **Update Lead Outcome** Updates a Lead Outcome. - Action **Update Person** Updates an existing Person. ## Each app on its own - [ **MailCheck.ai** MailCheck.ai detects disposable and temporary email addresses so they can be blocked at signup.](https://apiant.ai/connections/mailcheck-ai) - [ **Nutshell** Nutshell is an affordable, easy-to-use CRM that helps small-business sales teams win more deals.](https://apiant.ai/connections/nutshell) Reviews ## What our customers say ## More from MailCheck.ai - [ **MailCheck.ai to Salesforce** Salesforce is a leading enterprise customer relationship management (CRM) platform.](https://apiant.ai/connect/mailcheck-ai-to-salesforce) - [ **MailCheck.ai to Slack** Slack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...](https://apiant.ai/connect/mailcheck-ai-to-slack) - [ **MailCheck.ai to Mailchimp** Mailchimp marketing automation and email platform.](https://apiant.ai/connect/mailcheck-ai-to-mailchimp) - [ **MailCheck.ai to Stripe** Stripe is a payment processing platform for online businesses.](https://apiant.ai/connect/mailcheck-ai-to-stripe) - [ **MailCheck.ai to Shopify** Shopify is a commerce platform for online stores and retail point-of-sale.](https://apiant.ai/connect/mailcheck-ai-to-shopify) - [ **MailCheck.ai to QuickBooks Online** QuickBooks Online accounting — manage customers, invoices, bills, payments, vendors, expenses, and more via...](https://apiant.ai/connect/mailcheck-ai-to-quickbooks-online) ## More into Nutshell - [ **HubSpot to Nutshell** HubSpot is your all-in-one stop for all of your marketing software needs.](https://apiant.ai/connect/hubspot-to-nutshell) - [ **Google Sheets to Nutshell** Google Sheets is Google's online spreadsheet app for creating, editing and sharing spreadsheets.](https://apiant.ai/connect/google-sheets-to-nutshell) - [ **Gmail to Nutshell** Gmail is Google’s email service, featuring spam protection, search functions, and seamless integration with...](https://apiant.ai/connect/gmail-to-nutshell) - [ **Google Calendar to Nutshell** Google Calendar is a time management tool providing scheduling features, event reminders, and integration...](https://apiant.ai/connect/google-calendar-to-nutshell) - [ **Google Drive to Nutshell** Google Drive is a cloud storage solution for uploading, sharing, and collaborating on files across devices...](https://apiant.ai/connect/google-drive-to-nutshell) - [ **Shopify to Nutshell** Shopify is a commerce platform for online stores and retail point-of-sale.](https://apiant.ai/connect/shopify-to-nutshell) Questions ## MailCheck.ai and Nutshell, answered ### ### What can start an automation from MailCheck.ai? Any of MailCheck.ai's 4 triggers in the catalog, including Domain added to blocklist (instant), Domain flagged as relay (instant), Domain flagged as spam (instant) and Domain unflagged as spam (instant). Describe the moment in plain language and your agent picks the right one. ### ### What can your agent do in Nutshell when something happens in MailCheck.ai? Any of Nutshell's 12 actions, including Create Company, Create Lead, Create Person and Log Activity. Your agent maps the data both ways and tests every scenario before it ships. ### ### Can it also run from Nutshell to MailCheck.ai? Yes. When something happens in Nutshell, your agent can act in MailCheck.ai too. This page covers both directions: Nutshell's triggers and MailCheck.ai's actions are listed here as well. ### ### Do I have to build a connector for MailCheck.ai or Nutshell? 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 MailCheck.ai and Nutshell 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.