--- title: "Connect Mailrelay to Leadfox - APIANT.ai" description: "When \"New subscriber\" fires in Mailrelay, your agent runs \"Add Contact to List\" in Leadfox." canonical: "https://apiant.ai/connect/mailrelay-to-leadfox" --- # Connect Mailrelay to Leadfox When **New subscriber** fires in [Mailrelay](https://apiant.ai/connections/mailrelay), your agent runs **Add Contact to List** in [Leadfox](https://apiant.ai/connections/leadfox). Describe the whole flow and it is built, tested on every scenario and kept running. Mailrelay **1** trigger Mailrelay **11** actions Leadfox **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 Mailrelay and Leadfox 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 Mailrelay can start in Leadfox - When **New subscriber** in Mailrelay then **Add Contact to List** in Leadfox - When **New subscriber** in Mailrelay then **Create/Update Contact** in Leadfox 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 Mailrelay and Leadfox ## Triggers and actions 1 trigger · 14 actions - Trigger **New subscriber** Polling trigger for newly created subscribers. - Action **Add campaign** Create a campaign. - Action **Add group** Create a group. - Action **Add subscriber** Create a subscriber. - Action **Delete subscriber** Remove a subscriber. - Action **Find subscribers by criteria** Search subscribers using q[field_predicate] filters. - Action **Get campaign** Get a campaign by id. - Action **Get subscriber** Get a subscriber by id. - Action **List campaigns** List campaigns. - Action **List groups** List groups. - Action **List senders** List senders. - Action **Update subscriber** Update a subscriber. - Action **Add Contact to List** Adds an existing contact to a Leadfox list. - Action **Create/Update Contact** Creates a Leadfox contact, or updates the existing contact with the same email address. - Action **Find Contact** Returns the Leadfox contact that matches the specified email address. ## Each app on its own - [ **Mailrelay** Mailrelay is an advanced email marketing platform with powerful features.](https://apiant.ai/connections/mailrelay) - [ **Leadfox** Leadfox is lead management web software that allows you to increase sales.](https://apiant.ai/connections/leadfox) Reviews ## What our customers say ## More from Mailrelay - [ **Mailrelay to Salesforce** Salesforce is a leading enterprise customer relationship management (CRM) platform.](https://apiant.ai/connect/mailrelay-to-salesforce) - [ **Mailrelay to Slack** Slack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...](https://apiant.ai/connect/mailrelay-to-slack) - [ **Mailrelay to Stripe** Stripe is a payment processing platform for online businesses.](https://apiant.ai/connect/mailrelay-to-stripe) - [ **Mailrelay to Shopify** Shopify is a commerce platform for online stores and retail point-of-sale.](https://apiant.ai/connect/mailrelay-to-shopify) - [ **Mailrelay to QuickBooks Online** QuickBooks Online accounting — manage customers, invoices, bills, payments, vendors, expenses, and more via...](https://apiant.ai/connect/mailrelay-to-quickbooks-online) - [ **Mailrelay to Pipedrive** Pipedrive is a sales CRM and pipeline management tool.](https://apiant.ai/connect/mailrelay-to-pipedrive) ## More into Leadfox - [ **HubSpot to Leadfox** HubSpot is your all-in-one stop for all of your marketing software needs.](https://apiant.ai/connect/hubspot-to-leadfox) - [ **Salesforce to Leadfox** Salesforce is a leading enterprise customer relationship management (CRM) platform.](https://apiant.ai/connect/salesforce-to-leadfox) - [ **Slack to Leadfox** Slack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...](https://apiant.ai/connect/slack-to-leadfox) - [ **Google Sheets to Leadfox** Google Sheets](https://apiant.ai/connect/google-sheets-to-leadfox) - [ **Gmail to Leadfox** Gmail is Google’s email service, featuring spam protection, search functions, and seamless integration with...](https://apiant.ai/connect/gmail-to-leadfox) - [ **Google Calendar to Leadfox** Google Calendar is a time management tool providing scheduling features, event reminders, and integration...](https://apiant.ai/connect/google-calendar-to-leadfox) Questions ## Mailrelay and Leadfox, answered ### ### What can start an automation from Mailrelay? Any of Mailrelay's 1 trigger in the catalog, including New subscriber. Describe the moment in plain language and your agent picks the right one. ### ### What can your agent do in Leadfox when something happens in Mailrelay? Any of Leadfox's 3 actions, including Create/Update Contact, Add Contact to List and Find Contact. Your agent maps the data both ways and tests every scenario before it ships. ### ### Can it also run from Leadfox to Mailrelay? Leadfox has no triggers in the catalog today, so automations start in Mailrelay. If you need the other direction, ask: your agent reads Leadfox's API documentation and adds it. ### ### Do I have to build a connector for Mailrelay or Leadfox? 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 Mailrelay and Leadfox 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.