Integration
Connect crates.io and MailUp
When something happens in crates.io or MailUp, your agent does the next thing in the other. Describe it and it is built, tested on every scenario and kept running.
What the catalog holds today. Ask for anything missing and your agent reads the API documentation and adds it.
Build solutions, not workarounds.
What do you want crates.io and MailUp to do together?
Ask the assistant
Connect your AI client
Give your AI client this address.
https://mcp.apiant.aiAny 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.aiStart Claude Code there, approve the server, and sign in in the browser page it opens.
Claude Code guide (opens in a new tab)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)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)Zed
Open Settings, then AI, then MCP Servers, then Add Server, then Add Remote Server.
Setup guide (opens in a new tab)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)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)Example flows
What crates.io and MailUp can do together
From crates.io to MailUp
When New crate in crates.io
then Add list in MailUp
When New crate version in crates.io
then Add Recipient to Group in MailUp
From MailUp to crates.io
When New Email Message in List in MailUp
then Find crates by category in crates.io
When New Group in MailUp
then Find crates by name in crates.io
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 MailUp
Triggers and actions 6 triggers · 33 actions
Trigger
New crateFires when a new crate is registered on crates.io.
Trigger
New crate versionFires when any crate publishes a new version.
Action
Find crates by categorySearch crates.io within a given category slug.
Action
Find crates by nameSearch crates.io for crates matching a query string.
Action
Get crateGet metadata for a single crate by name.
Action
Get crate downloadsGet download counts (daily history + totals) for a crate.
Action
Get crate versionGet metadata for one specific version of a crate.
Action
Get crate version readmeGet the rendered README HTML for a specific crate version.
Action
List categoriesList all crates.io categories with descriptions and crate counts.
Action
List crate versionsList all published versions of a crate.
Trigger
New Email Message in ListA new email message was created in the list. MailUp is a multi-list environment and messages are list-specific.
Trigger
New GroupNew group added to the specified list. MailUp is a multi-list environment and groups are list-specific.
Trigger
New Recipient SubscribedThere is a new subscriber in the specified list. MailUp is a multi-list environment.
Trigger
New Recipient UnsubscribedA recipient unsubscribed from the specified list. MailUp is a multi-list environment.
Action
Add listCreate a new list. POST Console/List
Action
Add Recipient to GroupAdd recipient to the specified group on the list.
Action
Add Recipient to ListAdds a new recipient to the specified list as a subscriber.
Action
Create New Email MessageCreate a new email message on the specified list.
Action
Create New GroupAdd a new group to the specified list. MailUp is a multi-list environment.
Action
Delete email messageDelete an email message. DELETE Console/List/{id_List}/Email/{id_Message}
Action
Delete groupDelete a group in a list. DELETE Console/List/{id_List}/Group/{id_Group}
Action
Delete listDelete a list. DELETE Console/List/{id_List}
Action
Get email messageRetrieve email message details. GET Console/List/{id_List}/Email/{id_Message}
Action
Get listRetrieve list details by id. GET Console/List/{id_List}
Action
List email messagesRetrieve email messages of a list. GET Console/List/{id_List}/Emails
Action
List Email Message Sendingslists the sendings (send tasks, with recipients count and status) created for an email message.
Action
List Group RecipientsLists the recipients in a MailUp group (GET Console/Group/{id_group}/Recipients), with id, email, name and personal data fields.
Action
List groupsRetrieve groups of a list. GET Console/List/{id_List}/Groups
Action
List listsRetrieve the console's lists. GET Console/List on services.mailup.com/API/v1.1/Rest/ConsoleService.svc
Action
List subscribed recipientsRetrieve subscribed recipients of a list. GET Console/List/{id_List}/Recipients/Subscribed
Action
Remove recipient from groupUnsubscribe a recipient from a group. DELETE Console/Group/{id_Group}/Unsubscribe/{id_Recipient}
Action
Remove Recipient From ListThis method unsubscribe the given recipient from the specified list.
Action
Send Message to Email AddressSends the specified message (previously created in MailUp in the specified List) to the email address specified.
Action
Send Message to GroupSend a message to a predefined group in the specified list.
Action
Send message to listSend an email message to all recipients of a list. POST Console/List/{id_List}/Email/{id_Message}/Send
Action
Unsubscribe recipient from listUnsubscribe a recipient from a list. DELETE Console/List/{id_List}/Unsubscribe/{id_Recipient}
Action
Update email messageModify an email message. PUT Console/List/{id_List}/Email/{id_Message}
Action
Update groupModify a group in a list. PUT Console/List/{id_List}/Group/{id_Group}
Action
Update listModify details of a list. PUT Console/List/{id_List}
No trigger or action matches that. Ask your agent to add it: it reads the API documentation and builds what you describe.
Each app on its own
Reviews
What our customers say
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Questions
crates.io and MailUp, 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 MailUp when something happens in crates.io?
Any of MailUp's 25 actions, including Create New Email Message, Create New Group, Send Message to Email Address and Send Message to Group. Your agent maps the data both ways and tests every scenario before it ships.
Can it also run from MailUp to crates.io?
Yes. When something happens in MailUp, your agent can act in crates.io too. This page covers both directions: MailUp's triggers and crates.io's actions are listed here as well.
Do I have to build a connector for crates.io or MailUp?
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.