# Connect Mailjet and Returnless When **New Contact** fires in [Mailjet](https://apiant.ai/connections/mailjet), your agent runs **Find customers** in [Returnless](https://apiant.ai/connections/returnless), or **Request Created** in Returnless to **Add Contact to List** in Mailjet. Describe the whole flow and it is built, tested on every scenario and kept running. Mailjet **3** triggers Mailjet **16** actions Returnless **2** triggers Returnless **16** actions What the catalog holds today. Ask for anything missing and your agent reads the API documentation and adds it. ## What do you want Mailjet and Returnless 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 Mailjet and Returnless can do together ### From Mailjet to Returnless - When **New Contact** in Mailjet then **Find customers** in Returnless - When **New Contact in List** in Mailjet then **Add note** in Returnless ### From Returnless to Mailjet - When **Request Created** in Returnless then **Add Contact to List** in Mailjet - When **Return Created** in Returnless then **Create Contact** in Mailjet 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 Mailjet and Returnless ## Triggers and actions 5 triggers · 32 actions - Trigger **New Contact** Polls for newly created contacts across the account. - Trigger **New Contact in List** Polls for contacts newly added to a specific contact list. - Trigger **New Contact List** Polls for newly created contact lists. - Action **Add Contact to List** Add (subscribe) a contact to a contact list via managecontact. - Action **Create Contact** Create a new contact. - Action **Create Contact List** Create a new contact list. - Action **Create Contact Property** Create a custom contact property (contactmetadata). - Action **Delete Contact List** Delete a contact list by ID. - Action **Get Contact** Retrieve a contact by ID or email address. - Action **Get Contact List** Retrieve a contact list by ID. - Action **Get Contacts in List** List contacts belonging to a specific contact list. - Action **Get Message** Retrieve a message by its ID. - Action **Get Statistics** Retrieve aggregated message/campaign statistics counters. - Action **List Contact Lists** List all contact lists. - Action **List Contacts** List contacts with optional pagination. - Action **Manage Contact Data** Update the property (contactdata) values for a contact. - Action **Remove Contact from List** Unsubscribe/remove a contact from a contact list via managecontact. - Action **Send Email** Send a transactional or marketing email via the Send API v3.1. - Action **Update Contact** Update a contact's name or campaign-exclusion status. - Trigger **Request Created** Triggers when a customer creates a new return request that needs approval. - Trigger **Return Created** Triggers when a new return is created, including a request once it is approved. - Action **Add note** Adds an internal note to a return or return request. - Action **Add Request** Creates a return request in Returnless for items from an existing sales order. - Action **Approve a Request** Approves a return request in Returnless so the customer can send the items back. - Action **Approve a Request Without Shipment** Approves a pending return request without a return shipment, so the customer keeps the items. - Action **Find customers** Returns the customers in your Returnless account that match an email address. - Action **Find products** Returns the products in your Returnless account that match a SKU. - Action **Find Requests** Finds a Request in your Returnless account. - Action **Find Returns** Finds returns (return orders) in Returnless by return number. - Action **Find sales orders** Finds sales orders in Returnless by order number. - Action **Get customer** Returns a single Returnless customer by its id. - Action **Get Request (By Request ID)** Returns a single return request (return order) from Returnless by its ID. - Action **Get Return (By Return ID)** Returns a single return in Returnless, with all of its details, by its return ID. - Action **Get sales order** Returns a single sales order by its ID, including its customer, address and order details. - Action **List return reasons** Returns the return reasons configured in your Returnless account. - Action **Reject Request** Rejects a pending return request in Returnless. - Action **Update return** Changes the status of a return, such as Checked, Approved or Resolved. ## Each app on its own - [ **Mailjet** Mailjet is an all-in-one solution to send, track and deliver transactional, notification and marketing emails.](https://apiant.ai/connections/mailjet) - [ **Returnless** Returnless gives e-commerce businesses a way to get their returns in check.](https://apiant.ai/connections/returnless) Reviews ## What our customers say ## More from Mailjet - [ **Mailjet to Slack** Slack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...](https://apiant.ai/connect/mailjet-to-slack) - [ **Mailjet to Stripe** Stripe is a payment processing platform for online businesses.](https://apiant.ai/connect/mailjet-to-stripe) - [ **Mailjet to Shopify** Shopify is a commerce platform for online stores and retail point-of-sale.](https://apiant.ai/connect/mailjet-to-shopify) - [ **Mailjet to Pipedrive** Pipedrive is a sales CRM and pipeline management tool.](https://apiant.ai/connect/mailjet-to-pipedrive) - [ **Mailjet to Trello** Trello is a visual collaboration tool that organizes projects into boards, lists, and cards.](https://apiant.ai/connect/mailjet-to-trello) - [ **Mailjet to Zoom** Zoom unifies cloud video conferencing, simple online meetings, group messaging, and a software-based...](https://apiant.ai/connect/mailjet-to-zoom) ## More into Returnless - [ **HubSpot to Returnless** HubSpot is your all-in-one stop for all of your marketing software needs.](https://apiant.ai/connect/hubspot-to-returnless) - [ **Google Sheets to Returnless** Google Sheets](https://apiant.ai/connect/google-sheets-to-returnless) - [ **Gmail to Returnless** Gmail is Google’s email service, featuring spam protection, search functions, and seamless integration with...](https://apiant.ai/connect/gmail-to-returnless) - [ **Google Calendar to Returnless** Google Calendar is a time management tool providing scheduling features, event reminders, and integration...](https://apiant.ai/connect/google-calendar-to-returnless) - [ **Google Drive to Returnless** Google Drive is a cloud storage solution for uploading, sharing, and collaborating on files across devices...](https://apiant.ai/connect/google-drive-to-returnless) - [ **Mailchimp to Returnless** Mailchimp marketing automation and email platform.](https://apiant.ai/connect/mailchimp-to-returnless) Questions ## Mailjet and Returnless, answered ### ### What can start an automation from Mailjet? Any of Mailjet's 3 triggers in the catalog, including New Contact, New Contact in List and New Contact List. Describe the moment in plain language and your agent picks the right one. ### ### What can your agent do in Returnless when something happens in Mailjet? Any of Returnless's 16 actions, including Update return, Add note, Add Request and Approve a Request. Your agent maps the data both ways and tests every scenario before it ships. ### ### Can it also run from Returnless to Mailjet? Yes. When something happens in Returnless, your agent can act in Mailjet too. This page covers both directions: Returnless's triggers and Mailjet's actions are listed here as well. ### ### Do I have to build a connector for Mailjet or Returnless? 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.