--- title: "Connect crates.io to Mailercloud - APIANT.ai" description: "When \"New crate\" fires in crates.io, your agent runs \"Add contact\" in Mailercloud." canonical: "https://apiant.ai/connect/crates-io-to-mailercloud" --- # Connect crates.io to Mailercloud When **New crate** fires in [crates.io](https://apiant.ai/connections/crates-io), your agent runs **Add contact** in [Mailercloud](https://apiant.ai/connections/mailercloud). Describe the whole flow and it is built, tested on every scenario and kept running. crates.io **2** triggers crates.io **8** actions Mailercloud **18** actions What the catalog holds today. Ask for anything missing and your agent reads the API documentation and adds it. ## What do you want crates.io and Mailercloud 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 crates.io can start in Mailercloud - When **New crate** in crates.io then **Add contact** in Mailercloud - When **New crate version** in crates.io then **Add Contact to List** in Mailercloud 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 crates.io and Mailercloud ## Triggers and actions 2 triggers · 26 actions - Trigger **New crate** Fires when a new crate is registered on crates.io. - Trigger **New crate version** Fires when any crate publishes a new version. - Action **Find crates by category** Search crates.io within a given category slug. - Action **Find crates by name** Search crates.io for crates matching a query string. - Action **Get crate** Get metadata for a single crate by name. - Action **Get crate downloads** Get download counts (daily history + totals) for a crate. - Action **Get crate version** Get metadata for one specific version of a crate. - Action **Get crate version readme** Get the rendered README HTML for a specific crate version. - Action **List categories** List all crates.io categories with descriptions and crate counts. - Action **List crate versions** List all published versions of a crate. - Action **Add contact** - Action **Add Contact to List** Adds a new contact to the selected Mailercloud list's. - Action **Add property** Create Property (custom contact property), Custom Properties section. - Action **Add Tags to Contact** Adds one or more existing tags to a contact. - Action **Create List** Creates a new contact list in your Mailercloud account. - Action **Create or Update Contact (Upsert)** Creates a contact, or updates it if one with the same email already exists — in a single step. - Action **Create Tag** Creates a new tag in your Mailercloud account. - Action **Delete Tag** Deletes a tag from your Mailercloud account. - Action **Get contact** /v1/contacts/{id} (Get Contact Details). - Action **Get list** /v1/list/{id} (Get Single List Details). - Action **List contacts** /v1/contacts/search (Get Contacts in a List); lists contacts of a list with pagination. - Action **List lists** /v1/lists/search (List Lists); paginated. - Action **List properties** List Property (contact properties), Custom Properties section. - Action **List tags** Lists the tags in your Mailercloud account (first 100), optionally filtered by name. - Action **Remove Tags From Contact** Removes one or more tags from an existing contact. Use this because updating a contact only adds tags and never removes them. - Action **Update Contact** Update a existing contact in your account. - Action **Update List** Renames an existing contact list. - Action **Update Tag** Renames an existing tag. ## Each app on its own - [ **crates.io** Search Rust crates and read crate metadata, versions, owners and download counts from the crates.io package...](https://apiant.ai/connections/crates-io) - [ **Mailercloud** Mailercloud is a cloud-based email marketing platform that allows businesses to launch email marketing...](https://apiant.ai/connections/mailercloud) Reviews ## What our customers say ## More from crates.io - [ **crates.io to Postman** Postman is a platform for building and testing APIs.](https://apiant.ai/connect/crates-io-to-postman) - [ **crates.io to HubSpot** HubSpot is your all-in-one stop for all of your marketing software needs.](https://apiant.ai/connect/crates-io-to-hubspot) - [ **crates.io to Salesforce** Salesforce is a leading enterprise customer relationship management (CRM) platform.](https://apiant.ai/connect/crates-io-to-salesforce) - [ **crates.io to Slack** Slack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...](https://apiant.ai/connect/crates-io-to-slack) - [ **crates.io to Google Calendar** Google Calendar is a time management tool providing scheduling features, event reminders, and integration...](https://apiant.ai/connect/crates-io-to-google-calendar) - [ **crates.io to Google Drive** Google Drive is a cloud storage solution for uploading, sharing, and collaborating on files across devices...](https://apiant.ai/connect/crates-io-to-google-drive) ## More into Mailercloud - [ **HubSpot to Mailercloud** HubSpot is your all-in-one stop for all of your marketing software needs.](https://apiant.ai/connect/hubspot-to-mailercloud) - [ **Salesforce to Mailercloud** Salesforce is a leading enterprise customer relationship management (CRM) platform.](https://apiant.ai/connect/salesforce-to-mailercloud) - [ **Slack to Mailercloud** Slack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...](https://apiant.ai/connect/slack-to-mailercloud) - [ **Google Sheets to Mailercloud** Google Sheets](https://apiant.ai/connect/google-sheets-to-mailercloud) - [ **Gmail to Mailercloud** Gmail is Google’s email service, featuring spam protection, search functions, and seamless integration with...](https://apiant.ai/connect/gmail-to-mailercloud) - [ **Google Calendar to Mailercloud** Google Calendar is a time management tool providing scheduling features, event reminders, and integration...](https://apiant.ai/connect/google-calendar-to-mailercloud) Questions ## crates.io and Mailercloud, answered ### ### What can start an automation from crates.io? Any of crates.io's 2 triggers in the catalog, including New crate and New crate version. Describe the moment in plain language and your agent picks the right one. ### ### What can your agent do in Mailercloud when something happens in crates.io? Any of Mailercloud's 18 actions, including Create List, Create or Update Contact (Upsert), Create Tag and Update Contact. Your agent maps the data both ways and tests every scenario before it ships. ### ### Can it also run from Mailercloud to crates.io? Mailercloud has no triggers in the catalog today, so automations start in crates.io. If you need the other direction, ask: your agent reads Mailercloud's API documentation and adds it. ### ### Do I have to build a connector for crates.io or Mailercloud? 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 crates.io and Mailercloud 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.