--- title: "Connect eSputnik and Mailosaur - APIANT.ai" description: "When \"New Contact\" fires in eSputnik, your agent runs \"Send email\" in Mailosaur, or \"New message\" in Mailosaur to \"Send Viber message\" in eSputnik." canonical: "https://apiant.ai/connect/esputnik-to-mailosaur" --- # Connect eSputnik and Mailosaur When **New Contact** fires in [eSputnik](https://apiant.ai/connections/esputnik), your agent runs **Send email** in [Mailosaur](https://apiant.ai/connections/mailosaur), or **New message** in Mailosaur to **Send Viber message** in eSputnik. Describe the whole flow and it is built, tested on every scenario and kept running. eSputnik **2** triggers eSputnik **12** actions Mailosaur **1** trigger Mailosaur **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 eSputnik and Mailosaur 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 eSputnik and Mailosaur can do together ### From eSputnik to Mailosaur - When **New Contact** in eSputnik then **Send email** in Mailosaur - When **New Contact in Segment** in eSputnik then **Find messages by criteria** in Mailosaur ### From Mailosaur to eSputnik - When **New message** in Mailosaur then **Send Viber message** in eSputnik - When **New message** in Mailosaur then **Add contact to segment** in eSputnik 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 eSputnik and Mailosaur ## Triggers and actions 3 triggers · 22 actions - Trigger **New Contact** Triggered when a new contact is created in eSputnik, optionally limited to contacts matching the details you enter. - Trigger **New Contact in Segment** Triggers when a contact is added to the eSputnik segment you choose. - Action **Add contact to segment** Adds one or more contacts to a static segment in eSputnik, identified by contact IDs or external customer IDs. - Action **Add emails to unsubscribed list** Adds one or more email addresses to the eSputnik list of unsubscribed contacts. - Action **Add/Update Contact** Adds a new contact or updates the existing matching contact, including its channels, address and additional fields, and returns the contact's ID. - Action **Delete contact** Deletes a contact by its eSputnik contact ID, optionally erasing all of the contact's data permanently. - Action **Delete contact from segment** Removes one or more contacts from a static segment, identified by their eSputnik contact IDs or external customer IDs. - Action **Find contacts** Returns up to 500 contacts that match the specified external ID, email address, phone number, first name or last name. - Action **Get contact** Returns an eSputnik contact by ID, including its channels, address, segments and additional field values. An error occurs if the contact is not found. - Action **List segments** Returns the contact segments in the eSputnik account, optionally narrowed by name, with each segment's id, name and type. - Action **Send Email** Sends an email message to one or more recipients. A new contact is created for any address that does not already exist in eSputnik. - Action **Send Event** Sends a backend event for a contact to eSputnik, where it can start workflows and supply dynamic content for messages. - Action **Send Viber message** Sends a Viber message to a list of phone numbers or to a segment, and returns the queueing result for each recipient. A new contact is created for a phone number that does not exist yet. - Action **Subscribe Contact** Subscribes a contact through a double opt-in flow, creating an unconfirmed contact if none exists or updating the existing one, and returns the contact's ID and email subscription status. - Trigger **New message** Fires when a new email/SMS arrives in a server. - Action **Add server** Create a server (inbox). - Action **Delete message** Delete a message. - Action **Delete server** Delete a server. - Action **Find messages by criteria** Search messages by sentFrom/sentTo/subject/body. - Action **Get message** Retrieve one email/SMS message. - Action **Get server** Retrieve a server. - Action **List messages** List messages in a server. - Action **List servers** List servers (inboxes). - Action **Send email** Send an email. - Action **Update server** Update a server. ## Each app on its own - [ **eSputnik** ESputnik is a marketing automation service made to embody the toughest ideas of enterprise level solutions...](https://apiant.ai/connections/esputnik) - [ **Mailosaur** Email and SMS testing API with disposable inboxes for automating OTP, MFA, and email workflow tests.](https://apiant.ai/connections/mailosaur) Reviews ## What our customers say ## More from eSputnik - [ **eSputnik to HubSpot** HubSpot is your all-in-one stop for all of your marketing software needs.](https://apiant.ai/connect/esputnik-to-hubspot) - [ **eSputnik to Salesforce** Salesforce is a leading enterprise customer relationship management (CRM) platform.](https://apiant.ai/connect/esputnik-to-salesforce) - [ **eSputnik to Slack** Slack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...](https://apiant.ai/connect/esputnik-to-slack) - [ **eSputnik to Google Sheets** Google Sheets is Google's online spreadsheet app for creating, editing and sharing spreadsheets.](https://apiant.ai/connect/esputnik-to-google-sheets) - [ **eSputnik to Gmail** Gmail is Google’s email service, featuring spam protection, search functions, and seamless integration with...](https://apiant.ai/connect/esputnik-to-gmail) - [ **eSputnik to Google Calendar** Google Calendar is a time management tool providing scheduling features, event reminders, and integration...](https://apiant.ai/connect/esputnik-to-google-calendar) ## More into Mailosaur - [ **HubSpot to Mailosaur** HubSpot is your all-in-one stop for all of your marketing software needs.](https://apiant.ai/connect/hubspot-to-mailosaur) - [ **Google Sheets to Mailosaur** Google Sheets is Google's online spreadsheet app for creating, editing and sharing spreadsheets.](https://apiant.ai/connect/google-sheets-to-mailosaur) - [ **Gmail to Mailosaur** Gmail is Google’s email service, featuring spam protection, search functions, and seamless integration with...](https://apiant.ai/connect/gmail-to-mailosaur) - [ **Google Calendar to Mailosaur** Google Calendar is a time management tool providing scheduling features, event reminders, and integration...](https://apiant.ai/connect/google-calendar-to-mailosaur) - [ **Google Drive to Mailosaur** Google Drive is a cloud storage solution for uploading, sharing, and collaborating on files across devices...](https://apiant.ai/connect/google-drive-to-mailosaur) - [ **Mailchimp to Mailosaur** Mailchimp marketing automation and email platform.](https://apiant.ai/connect/mailchimp-to-mailosaur) Questions ## eSputnik and Mailosaur, answered ### ### What can start an automation from eSputnik? Any of eSputnik's 2 triggers in the catalog, including New Contact and New Contact in Segment. Describe the moment in plain language and your agent picks the right one. ### ### What can your agent do in Mailosaur when something happens in eSputnik? Any of Mailosaur's 10 actions, including Send email, Update server, Add server and Find messages by criteria. Your agent maps the data both ways and tests every scenario before it ships. ### ### Can it also run from Mailosaur to eSputnik? Yes. When something happens in Mailosaur, your agent can act in eSputnik too. This page covers both directions: Mailosaur's triggers and eSputnik's actions are listed here as well. ### ### Do I have to build a connector for eSputnik or Mailosaur? 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 eSputnik and Mailosaur 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.