--- title: "Connect Mailrelay and systeme.io - APIANT.ai" description: "When \"New subscriber\" fires in Mailrelay, your agent runs \"Add tag to contact\" in systeme.io." canonical: "https://apiant.ai/connect/mailrelay-to-systeme-io" --- # Connect Mailrelay and systeme.io When **New subscriber** fires in [Mailrelay](https://apiant.ai/connections/mailrelay), your agent runs **Add tag to contact** in [systeme.io](https://apiant.ai/connections/systeme-io), or **New Tag Added to Contact** in systeme.io to **Add campaign** in Mailrelay. Describe the whole flow and it is built, tested on every scenario and kept running. Mailrelay **1** trigger Mailrelay **11** actions systeme.io **1** trigger systeme.io **10** 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 systeme.io 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 and systeme.io can do together ### From Mailrelay to systeme.io - When **New subscriber** in Mailrelay then **Add tag to contact** in systeme.io - When **New subscriber** in Mailrelay then **Create or Update a Contact, Including Adding Tags** in systeme.io ### From systeme.io to Mailrelay - When **New Tag Added to Contact** in systeme.io then **Add campaign** in Mailrelay - When **New Tag Added to Contact** in systeme.io then **Add group** in Mailrelay 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 systeme.io ## Triggers and actions 2 triggers · 21 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. - Trigger **New Tag Added to Contact** Triggers when a tag is added to contact. - Action **Add digital product** Create a new payment Digital Product resource. - Action **Add tag to contact** Assign an existing Tag to a Contact by id (distinct from create-or-update-with-tags). - Action **Create or Update a Contact, Including Adding Tags** Creates a contact in systeme.io, or updates the existing contact with that email address, and applies any tags you list. - Action **Delete contact** Remove a Contact resource by id. - Action **Find contacts by email** Search Contact resources filtered by email address. - Action **Get contact** Retrieve a single Contact resource by id. - Action **List contacts** Retrieve the collection of Contact resources, paginated. - Action **List digital products** Retrieve the collection of payment Digital Product resources. - Action **List tags** Retrieve the collection of Tag resources. - Action **Remove Tag** Removes tag from a contact ## Each app on its own - [ **Mailrelay** Mailrelay is an advanced email marketing platform with powerful features.](https://apiant.ai/connections/mailrelay) - [ **systeme.io** Systeme.io allows you to build sales funnels, send emails and automate your entire business.](https://apiant.ai/connections/systeme-io) 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 systeme.io - [ **Dropbox to systeme.io** Dropbox cloud file storage. Upload, download, move, copy, delete, and search files and folders; create...](https://apiant.ai/connect/dropbox-to-systeme-io) - [ **Whop to systeme.io** Whop is a platform that let's you build businesses.](https://apiant.ai/connect/whop-to-systeme-io) - [ **HubSpot to systeme.io** HubSpot is your all-in-one stop for all of your marketing software needs.](https://apiant.ai/connect/hubspot-to-systeme-io) - [ **Salesforce to systeme.io** Salesforce is a leading enterprise customer relationship management (CRM) platform.](https://apiant.ai/connect/salesforce-to-systeme-io) - [ **Slack to systeme.io** Slack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...](https://apiant.ai/connect/slack-to-systeme-io) - [ **Google Sheets to systeme.io** Google Sheets](https://apiant.ai/connect/google-sheets-to-systeme-io) Questions ## Mailrelay and systeme.io, 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 systeme.io when something happens in Mailrelay? Any of systeme.io's 10 actions, including Create or Update a Contact, Including Adding Tags, Add digital product, Add tag to contact and Find contacts by email. Your agent maps the data both ways and tests every scenario before it ships. ### ### Can it also run from systeme.io to Mailrelay? Yes. When something happens in systeme.io, your agent can act in Mailrelay too. This page covers both directions: systeme.io's triggers and Mailrelay's actions are listed here as well. ### ### Do I have to build a connector for Mailrelay or systeme.io? 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 systeme.io 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.