--- title: "Connect WaiverSign to Mysendingbox - APIANT.ai" description: "When \"Signed Waivers\" fires in WaiverSign, your agent runs \"Add letter\" in Mysendingbox." canonical: "https://apiant.ai/connect/waiversign-to-mysendingbox" --- # Connect WaiverSign to Mysendingbox When **Signed Waivers** fires in [WaiverSign](https://apiant.ai/connections/waiversign), your agent runs **Add letter** in [Mysendingbox](https://apiant.ai/connections/mysendingbox). Describe the whole flow and it is built, tested on every scenario and kept running. WaiverSign **1** trigger Mysendingbox **5** actions What the catalog holds today. Ask for anything missing and your agent reads the API documentation and adds it. ## What do you want WaiverSign and Mysendingbox 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 WaiverSign can start in Mysendingbox - When **Signed Waivers** in WaiverSign then **Add letter** in Mysendingbox - When **Signed Waivers** in WaiverSign then **Get letter** in Mysendingbox 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 WaiverSign and Mysendingbox ## Triggers and actions 1 trigger · 5 actions - Trigger **Signed Waivers** Triggers when a waiver is newly signed in WaiverSign, returning the signer's details and a link to the signed waiver. - Action **Add letter** Create and send a letter. - Action **Cancel letter** Cancel a letter within the cancellation window. See "Cancel a Letter" in docs.mysendingbox.fr (endpoint under /letters/{id}). - Action **Get letter** Get a specific letter. - Action **Get letter price** Get the price of a letter. - Action **List letters** List all letters. ## Each app on its own - [ **WaiverSign** WaiverSign by Resmark Systems helps businesses and organizations of any size collect and manage liability...](https://apiant.ai/connections/waiversign) - [ **Mysendingbox** SaaS/API platform for sending physical mail, letters, and postcards via HTTP request.](https://apiant.ai/connections/mysendingbox) Reviews ## What our customers say ## More from WaiverSign - [ **WaiverSign to HubSpot** HubSpot is your all-in-one stop for all of your marketing software needs.](https://apiant.ai/connect/waiversign-to-hubspot) - [ **WaiverSign to Salesforce** Salesforce is a leading enterprise customer relationship management (CRM) platform.](https://apiant.ai/connect/waiversign-to-salesforce) - [ **WaiverSign to Slack** Slack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...](https://apiant.ai/connect/waiversign-to-slack) - [ **WaiverSign to Google Sheets** Google Sheets is Google's online spreadsheet app for creating, editing and sharing spreadsheets.](https://apiant.ai/connect/waiversign-to-google-sheets) - [ **WaiverSign to Gmail** Gmail is Google’s email service, featuring spam protection, search functions, and seamless integration with...](https://apiant.ai/connect/waiversign-to-gmail) - [ **WaiverSign to Google Calendar** Google Calendar is a time management tool providing scheduling features, event reminders, and integration...](https://apiant.ai/connect/waiversign-to-google-calendar) ## More into Mysendingbox - [ **HubSpot to Mysendingbox** HubSpot is your all-in-one stop for all of your marketing software needs.](https://apiant.ai/connect/hubspot-to-mysendingbox) - [ **Salesforce to Mysendingbox** Salesforce is a leading enterprise customer relationship management (CRM) platform.](https://apiant.ai/connect/salesforce-to-mysendingbox) - [ **Slack to Mysendingbox** Slack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...](https://apiant.ai/connect/slack-to-mysendingbox) - [ **Google Sheets to Mysendingbox** Google Sheets is Google's online spreadsheet app for creating, editing and sharing spreadsheets.](https://apiant.ai/connect/google-sheets-to-mysendingbox) - [ **Gmail to Mysendingbox** Gmail is Google’s email service, featuring spam protection, search functions, and seamless integration with...](https://apiant.ai/connect/gmail-to-mysendingbox) - [ **Google Calendar to Mysendingbox** Google Calendar is a time management tool providing scheduling features, event reminders, and integration...](https://apiant.ai/connect/google-calendar-to-mysendingbox) Questions ## WaiverSign and Mysendingbox, answered ### ### What can start an automation from WaiverSign? Any of WaiverSign's 1 trigger in the catalog, including Signed Waivers. Describe the moment in plain language and your agent picks the right one. ### ### What can your agent do in Mysendingbox when something happens in WaiverSign? Any of Mysendingbox's 5 actions, including Add letter, Get letter, Get letter price and List letters. Your agent maps the data both ways and tests every scenario before it ships. ### ### Can it also run from Mysendingbox to WaiverSign? Mysendingbox has no triggers in the catalog today, so automations start in WaiverSign. If you need the other direction, ask: your agent reads Mysendingbox's API documentation and adds it. ### ### Do I have to build a connector for WaiverSign or Mysendingbox? 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 WaiverSign and Mysendingbox without building an automation? Yes. With your AI client connected to APIANT, ask it to do something in Mysendingbox 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.