--- title: "Connect Cassidy to UserCheck - APIANT.ai" description: "When \"Workflow Finished Running\" fires in Cassidy, your agent runs \"Check Email\" in UserCheck." canonical: "https://apiant.ai/connect/cassidy-to-usercheck" --- # Connect Cassidy to UserCheck When **Workflow Finished Running** fires in [Cassidy](https://apiant.ai/connections/cassidy), your agent runs **Check Email** in [UserCheck](https://apiant.ai/connections/usercheck). Describe the whole flow and it is built, tested on every scenario and kept running. Cassidy **1** trigger UserCheck **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 Cassidy and UserCheck 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 Cassidy can start in UserCheck - When **Workflow Finished Running** in Cassidy then **Check Email** in UserCheck - When **Workflow Finished Running** in Cassidy then **Check Domain** in UserCheck 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 Cassidy and UserCheck ## Triggers and actions 1 trigger · 3 actions - Trigger **Workflow Finished Running** Triggers when a Workflow finishes running within Cassidy. - Action **Check Domain** Returns UserCheck's signals for a domain: whether it is disposable, a relay or public email service, spam-flagged or blocklisted, its mail configuration (MX, SPF, DMARC), age and authority. - Action **Check Email** Checks an email address with UserCheck and returns its signals: whether it is disposable, a relay or public address, a role account, its normalized form, domain age, MX setup and more. - Action **Get account status** Returns your UserCheck account details, plan information, and credit usage for the current billing period. ## Each app on its own - [ **Cassidy** Cassidy securely connects with all of your existing tools, builds AI assistants and creates AI-driven...](https://apiant.ai/connections/cassidy) - [ **UserCheck** UserCheck is a service that validates email addresses and domains to detect disposable and temporary email...](https://apiant.ai/connections/usercheck) Reviews ## What our customers say ## More from Cassidy - [ **Cassidy to Agify** API that estimates a person's likely age from their first name, with optional country-based scoping.](https://apiant.ai/connect/cassidy-to-agify) - [ **Cassidy to Inistate** Inistate is simplifying processes to best-fit sustainable and scalable solutions and reinventing no-code...](https://apiant.ai/connect/cassidy-to-inistate) - [ **Cassidy to HubSpot** HubSpot is your all-in-one stop for all of your marketing software needs.](https://apiant.ai/connect/cassidy-to-hubspot) - [ **Cassidy to Salesforce** Salesforce is a leading enterprise customer relationship management (CRM) platform.](https://apiant.ai/connect/cassidy-to-salesforce) - [ **Cassidy to Slack** Slack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...](https://apiant.ai/connect/cassidy-to-slack) - [ **Cassidy to Google Sheets** Google Sheets is Google's online spreadsheet app for creating, editing and sharing spreadsheets.](https://apiant.ai/connect/cassidy-to-google-sheets) ## More into UserCheck - [ **HubSpot to UserCheck** HubSpot is your all-in-one stop for all of your marketing software needs.](https://apiant.ai/connect/hubspot-to-usercheck) - [ **Salesforce to UserCheck** Salesforce is a leading enterprise customer relationship management (CRM) platform.](https://apiant.ai/connect/salesforce-to-usercheck) - [ **Slack to UserCheck** Slack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...](https://apiant.ai/connect/slack-to-usercheck) - [ **Google Sheets to UserCheck** Google Sheets is Google's online spreadsheet app for creating, editing and sharing spreadsheets.](https://apiant.ai/connect/google-sheets-to-usercheck) - [ **Gmail to UserCheck** Gmail is Google’s email service, featuring spam protection, search functions, and seamless integration with...](https://apiant.ai/connect/gmail-to-usercheck) - [ **Google Calendar to UserCheck** Google Calendar is a time management tool providing scheduling features, event reminders, and integration...](https://apiant.ai/connect/google-calendar-to-usercheck) Questions ## Cassidy and UserCheck, answered ### ### What can start an automation from Cassidy? Any of Cassidy's 1 trigger in the catalog, including Workflow Finished Running. Describe the moment in plain language and your agent picks the right one. ### ### What can your agent do in UserCheck when something happens in Cassidy? Any of UserCheck's 3 actions, including Check Domain, Check Email and Get account status. Your agent maps the data both ways and tests every scenario before it ships. ### ### Can it also run from UserCheck to Cassidy? UserCheck has no triggers in the catalog today, so automations start in Cassidy. If you need the other direction, ask: your agent reads UserCheck's API documentation and adds it. ### ### Do I have to build a connector for Cassidy or UserCheck? 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 Cassidy and UserCheck without building an automation? Yes. With your AI client connected to APIANT, ask it to do something in UserCheck 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.