--- title: "Connect Saasu to Mailsac - APIANT.ai" description: "When \"New Contact\" fires in Saasu, your agent runs \"Validate email address\" in Mailsac." canonical: "https://apiant.ai/connect/saasu-to-mailsac" --- # Connect Saasu to Mailsac When **New Contact** fires in [Saasu](https://apiant.ai/connections/saasu), your agent runs **Validate email address** in [Mailsac](https://apiant.ai/connections/mailsac). Describe the whole flow and it is built, tested on every scenario and kept running. Saasu **1** trigger Saasu **21** actions Mailsac **7** actions What the catalog holds today. Ask for anything missing and your agent reads the API documentation and adds it. ## What do you want Saasu and Mailsac 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 Saasu can start in Mailsac - When **New Contact** in Saasu then **Validate email address** in Mailsac - When **New Contact** in Saasu then **Find messages** in Mailsac 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 Saasu and Mailsac ## Triggers and actions 1 trigger · 28 actions - Trigger **New Contact** Triggers when a new contact is added to your Saasu file. - Action **Add activity** Creates an activity (task, call, meeting, note) in your Saasu file, optionally attached to a contact or transaction. - Action **Add company** Creates a company record in Saasu. - Action **Add item** Creates an inventory or combo item in Saasu. - Action **Add journal** Creates a manual journal entry with debit and credit lines in a Saasu file. - Action **Create Contact** Creates a new contact (person) in your Saasu file and returns its id. - Action **Create Item Invoice** Creates an item-layout invoice, quote or order in Saasu with inventory item line items. - Action **Create Service Invoice** Creates a service-layout sale or purchase invoice in Saasu, with line items described by account and amount. - Action **Delete contact** Deletes a contact from your Saasu file. - Action **Delete invoice** Deletes a sale or purchase invoice from the Saasu file. - Action **Delete item** Deletes an inventory item from the Saasu file. - Action **Email invoice** Emails a Saasu invoice to the email address you specify. - Action **Find accounts** Returns the accounts in your Saasu chart of accounts, filtered by type, status, bank-account flag or header account. - Action **Find companies** Returns the companies in your Saasu file whose name matches, optionally limited to a last-modified date range. - Action **Find Contact** Finds Saasu contacts matching an email, name, company or other criteria and returns the matching contacts. - Action **Find items** Returns the inventory and combo items whose code or description matches the search text. - Action **Get contact** Returns a single Saasu contact by its ID. - Action **Get invoice** Returns a single Saasu invoice (sale or purchase) by its ID, including line items and totals. - Action **Get journal** Returns a single journal transaction, including its date, reference, summary and journal line items. - Action **Update contact** Updates an existing contact in Saasu, such as their name, email, phone numbers, addresses and customer/supplier flags. - Action **Update invoice** Updates an existing Saasu sale or purchase invoice, replacing its details and line items. - Action **Update item** Updates an existing inventory or combo item in Saasu, such as its code, description, prices, accounts and tax codes. - Action **Find messages** Returns up to 100 messages across your Mailsac account that match all of the given subject, sender, recipient and read-status criteria. - Action **Get address** Returns a Mailsac email address's details, including its forwarding, webhook and ownership settings, or shows whether it is reserved. - Action **Get message** Returns the details of a single email message in a Mailsac inbox, including sender, recipients, subject, links found in the body and attachment checksums. - Action **Get message text** Returns the plain-text body of an email message in a Mailsac inbox. If the message only contained HTML, a simple plain-text version is generated. - Action **List addresses** Returns every private (reserved) email address on your Mailsac account, with its forwarding, webhook and custom info settings. - Action **List messages** Returns the messages in a Mailsac inbox, newest first, with sender, recipients, subject, received date and links for each. - Action **Validate email address** Checks whether an email address is correctly formatted and whether it belongs to a disposable email provider, and returns the domains and IP addresses associated with it. ## Each app on its own - [ **Saasu** Fast, simple online accounting for small business that includes cashflow, invoicing, inventory, payroll and...](https://apiant.ai/connections/saasu) - [ **Mailsac** Disposable Email](https://apiant.ai/connections/mailsac) Reviews ## What our customers say ## More from Saasu - [ **Saasu to Salesforce** Salesforce is a leading enterprise customer relationship management (CRM) platform.](https://apiant.ai/connect/saasu-to-salesforce) - [ **Saasu to Slack** Slack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...](https://apiant.ai/connect/saasu-to-slack) - [ **Saasu to Stripe** Stripe is a payment processing platform for online businesses.](https://apiant.ai/connect/saasu-to-stripe) - [ **Saasu to Shopify** Shopify is a commerce platform for online stores and retail point-of-sale.](https://apiant.ai/connect/saasu-to-shopify) - [ **Saasu to Trello** Trello is a visual collaboration tool that organizes projects into boards, lists, and cards.](https://apiant.ai/connect/saasu-to-trello) - [ **Saasu to Zoom** Zoom unifies cloud video conferencing, simple online meetings, group messaging, and a software-based...](https://apiant.ai/connect/saasu-to-zoom) ## More into Mailsac - [ **HubSpot to Mailsac** HubSpot is your all-in-one stop for all of your marketing software needs.](https://apiant.ai/connect/hubspot-to-mailsac) - [ **Salesforce to Mailsac** Salesforce is a leading enterprise customer relationship management (CRM) platform.](https://apiant.ai/connect/salesforce-to-mailsac) - [ **Slack to Mailsac** Slack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...](https://apiant.ai/connect/slack-to-mailsac) - [ **Google Sheets to Mailsac** Google Sheets](https://apiant.ai/connect/google-sheets-to-mailsac) - [ **Gmail to Mailsac** Gmail is Google’s email service, featuring spam protection, search functions, and seamless integration with...](https://apiant.ai/connect/gmail-to-mailsac) - [ **Google Calendar to Mailsac** Google Calendar is a time management tool providing scheduling features, event reminders, and integration...](https://apiant.ai/connect/google-calendar-to-mailsac) Questions ## Saasu and Mailsac, answered ### ### What can start an automation from Saasu? Any of Saasu's 1 trigger in the catalog, including New Contact. Describe the moment in plain language and your agent picks the right one. ### ### What can your agent do in Mailsac when something happens in Saasu? Any of Mailsac's 7 actions, including Find messages, Get address, Get message and Get message text. Your agent maps the data both ways and tests every scenario before it ships. ### ### Can it also run from Mailsac to Saasu? Mailsac has no triggers in the catalog today, so automations start in Saasu. If you need the other direction, ask: your agent reads Mailsac's API documentation and adds it. ### ### Do I have to build a connector for Saasu or Mailsac? 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 Saasu and Mailsac 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.