Integration
Connect OnceHub to Mailchimp Transactional (Mandrill)
When Booking Completed fires in OnceHub, your agent runs Send an email using a template in Mailchimp Transactional (Mandrill). Describe the whole flow 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 OnceHub and Mailchimp Transactional (Mandrill) to do together?
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Connect your AI client
Give your AI client this address.
https://mcp.apiant.aiOne 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.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 OnceHub can start in Mailchimp Transactional (Mandrill)
When Booking Completed in OnceHub
then Send an email using a template in Mailchimp Transactional (Mandrill)
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 OnceHub and Mailchimp Transactional (Mandrill)
Triggers and actions 15 triggers · 34 actions
- Booking Canceled
Triggers when a OnceHub booking is canceled by the customer or by someone on your team.
- Booking Cancelled and Rescheduled
Triggers when a customer cancels a OnceHub booking and then reschedules it on a different booking page.
- Booking Completed
Triggers when a OnceHub booking's end time has passed and the meeting is marked completed.
- Booking Lifecycle Event
Triggers on any OnceHub booking event — scheduled, rescheduled, reassigned, canceled, completed or no-show — with the event name included so you can branch on it.
- Booking No-Show
Triggers when a OnceHub booking is marked as a no-show.
- Booking Rescheduled
Triggers when a OnceHub booking is rescheduled to a new time.
- Booking Scheduled
Triggers when a new OnceHub booking is scheduled.
- Contact Captured
Triggers when a new contact is captured in OnceHub.
- Contact Lifecycle Event
Triggers whenever a OnceHub contact is created or changed, so you catch the whole contact lifecycle in one place.
- Contact Updated
Triggers when an existing OnceHub contact is updated.
- Conversation Abandoned
Triggers when a website visitor stops replying to a OnceHub chatbot for more than ten minutes and the conversation is abandoned.
- Conversation Closed
Triggers when a OnceHub chatbot conversation is closed.
- Conversation Lifecycle Event
Triggers on any OnceHub conversation event — started, closed or abandoned — with the event name included so you can branch on it.
- Conversation Started
Triggers when a website visitor sends their first message to a OnceHub chatbot and a conversation starts.
- Reassigned Booking
Triggers when a OnceHub booking is reassigned to a different host.
- Cancel Booking
Cancels a OnceHub booking, optionally with a reason and without emailing the customer.
- Create Contact
Creates a new contact in OnceHub. Give at least an email address or a mobile number.
- Create One-Time Booking Link
Creates a one-time booking link for a published OnceHub booking calendar, optionally prefilling the booking form and pinning the host or duration.
- Delete Contact
Deletes a contact from OnceHub.
- Find Contact
Finds a OnceHub contact by email address.
- Get Available Time Slots
Returns the open meeting times on a OnceHub booking calendar for the window you choose.
- Get Booking Calendar
Returns one OnceHub booking calendar with its host, public link and meeting length.
- Get Booking Details
Returns one OnceHub booking with its time, customer details and booking form answers.
- Get Contact
Returns one OnceHub contact with its details and custom fields.
- Get Contact's Future Meetings
Returns a contact's upcoming OnceHub meetings — the bookings that start after the time you give.
- List Booking Calendars
Lists the booking calendars in your OnceHub account.
- List Bookings
Lists OnceHub bookings, with optional filters for status, contact, host, calendar and date range.
- List Contacts
Lists the contacts in your OnceHub account, with optional email and date filters.
- Mark Booking as No-Show
Marks a OnceHub booking as a no-show.
- Reassign Booking
Reassigns a OnceHub booking to a different host, optionally naming the video conferencing service to use.
- Request Reschedule
Asks the customer to pick a new time for a OnceHub booking, optionally telling them why.
- Update Contact
Updates an existing OnceHub contact. Only the fields you fill in are changed; anything left blank keeps its current value.
- Add reject (blacklist)
Add an email to your email rejection blacklist.
- Add subaccount
Add a new subaccount.
- Add template
Add a new template to the account.
- Add to whitelist
Add an email to your email rejection whitelist.
- Delete from whitelist
Remove an email from your email rejection whitelist.
- Delete reject (blacklist)
Remove an email from your email rejection blacklist.
- Delete subaccount
Delete an existing subaccount; any messages queued for it are removed.
- Delete template
Delete a template from the account.
- Get account info
Return information about the API-connected user, including reputation, hourly quota, and usage stats.
- Get message info
Get the full information for a single recently sent message.
- Get sender info
Get more detailed information about a single sender, including stats for the past 30 days.
- Get subaccount info
Get information about a specific subaccount.
- Get tag info
Return more detailed information about a single tag, including aggregates of recent stats.
- Get template info
Get the information for a specific template.
- Ping (validate API key)
Validate an API key and respond to a ping.
- Send an email using a template
Send a transactional message using a stored Mandrill template.
- Update template
Update the code for an existing template.
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
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Questions
OnceHub and Mailchimp Transactional (Mandrill), answered
What can start an automation from OnceHub?
Any of OnceHub's 15 triggers in the catalog, including Booking Completed, Contact Updated, Booking Lifecycle Event and Booking No-Show. Describe the moment in plain language and your agent picks the right one.
What can your agent do in Mailchimp Transactional (Mandrill) when something happens in OnceHub?
Any of Mailchimp Transactional (Mandrill)'s 17 actions, including Send an email using a template, Update template, Add reject (blacklist) and Add subaccount. Your agent maps the data both ways and tests every scenario before it ships.
Can it also run from Mailchimp Transactional (Mandrill) to OnceHub?
Mailchimp Transactional (Mandrill) has no triggers in the catalog today, so automations start in OnceHub. If you need the other direction, ask: your agent reads Mailchimp Transactional (Mandrill)'s API documentation and adds it.
Do I have to build a connector for OnceHub or Mailchimp Transactional (Mandrill)?
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 OnceHub and Mailchimp Transactional (Mandrill) 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.