Integration
Connect OnceHub and Slack
When Booking Completed fires in OnceHub, your agent runs Send Direct Message in Slack, or New Channel in Slack to Create Contact in OnceHub. 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 Slack to do together?
Ask the assistant
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 and Slack can do together
From OnceHub to Slack
When Booking Completed in OnceHub
then Send Direct Message in Slack
When Contact Updated in OnceHub
then Send Ephemeral Message in Slack
From Slack to OnceHub
When New Channel in Slack
then Create Contact in OnceHub
When New Channel Member in Slack
then Update Contact in OnceHub
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 Slack
Triggers and actions 30 triggers · 77 actions
Trigger
Booking CanceledTriggers when a OnceHub booking is canceled by the customer or by someone on your team.
Trigger
Booking Cancelled and RescheduledTriggers when a customer cancels a OnceHub booking and then reschedules it on a different booking page.
Trigger
Booking CompletedTriggers when a OnceHub booking's end time has passed and the meeting is marked completed.
Trigger
Booking Lifecycle EventTriggers on any OnceHub booking event — scheduled, rescheduled, reassigned, canceled, completed or no-show — with the event name included so you can branch on it.
Trigger
Booking No-ShowTriggers when a OnceHub booking is marked as a no-show.
Trigger
Booking RescheduledTriggers when a OnceHub booking is rescheduled to a new time.
Trigger
Booking ScheduledTriggers when a new OnceHub booking is scheduled.
Trigger
Contact CapturedTriggers when a new contact is captured in OnceHub.
Trigger
Contact Lifecycle EventTriggers whenever a OnceHub contact is created or changed, so you catch the whole contact lifecycle in one place.
Trigger
Contact UpdatedTriggers when an existing OnceHub contact is updated.
Trigger
Conversation AbandonedTriggers when a website visitor stops replying to a OnceHub chatbot for more than ten minutes and the conversation is abandoned.
Trigger
Conversation ClosedTriggers when a OnceHub chatbot conversation is closed.
Trigger
Conversation Lifecycle EventTriggers on any OnceHub conversation event — started, closed or abandoned — with the event name included so you can branch on it.
Trigger
Conversation StartedTriggers when a website visitor sends their first message to a OnceHub chatbot and a conversation starts.
Trigger
Reassigned BookingTriggers when a OnceHub booking is reassigned to a different host.
Action
Cancel BookingCancels a OnceHub booking, optionally with a reason and without emailing the customer.
Action
Create ContactCreates a new contact in OnceHub. Give at least an email address or a mobile number.
Action
Create One-Time Booking LinkCreates a one-time booking link for a published OnceHub booking calendar, optionally prefilling the booking form and pinning the host or duration.
Action
Delete ContactDeletes a contact from OnceHub.
Action
Find ContactFinds a OnceHub contact by email address.
Action
Get Available Time SlotsReturns the open meeting times on a OnceHub booking calendar for the window you choose.
Action
Get Booking CalendarReturns one OnceHub booking calendar with its host, public link and meeting length.
Action
Get Booking DetailsReturns one OnceHub booking with its time, customer details and booking form answers.
Action
Get ContactReturns one OnceHub contact with its details and custom fields.
Action
Get Contact's Future MeetingsReturns a contact's upcoming OnceHub meetings — the bookings that start after the time you give.
Action
List Booking CalendarsLists the booking calendars in your OnceHub account.
Action
List BookingsLists OnceHub bookings, with optional filters for status, contact, host, calendar and date range.
Action
List ContactsLists the contacts in your OnceHub account, with optional email and date filters.
Action
Mark Booking as No-ShowMarks a OnceHub booking as a no-show.
Action
Reassign BookingReassigns a OnceHub booking to a different host, optionally naming the video conferencing service to use.
Action
Request RescheduleAsks the customer to pick a new time for a OnceHub booking, optionally telling them why.
Action
Update ContactUpdates an existing OnceHub contact. Only the fields you fill in are changed; anything left blank keeps its current value.
Trigger
New ChannelTriggers when a new channel is created in the workspace.
Trigger
New Channel (instant)Triggers when a new channel is created (Slack event channel_created).
Trigger
New Channel MemberTriggers when a member joins a chosen channel (Slack event member_joined_channel).
Trigger
New File (instant)Triggers when a new file is uploaded to the workspace (Slack event file_created).
Trigger
New Mention (instant)Triggers when a username or keyword is mentioned in a channel. Events API message events with keyword filter.
Trigger
New Message Posted to ChannelTriggers when a message is posted to a chosen channel (Slack event message.channels).
Trigger
New Message Posted to Private ChannelTriggers when a message is posted to a chosen private channel or group DM (Slack events message.groups, message.mpim).
Trigger
New Pinned ItemTriggers when an item is pinned in a channel.
Trigger
New Public Message Posted AnywhereTriggers when a message is posted to any public channel (Slack event message.channels).
Trigger
New Reaction AddedTriggers when an emoji reaction is added to a message (Slack event reaction_added).
Trigger
New Saved MessageTriggers when a message or file is saved (starred) (Slack event star_added).
Trigger
New Team Custom EmojiTriggers when a custom emoji is added to the workspace (Slack event emoji_changed).
Trigger
New Thread ReplyTriggers when a new reply is added to a message thread.
Trigger
New UserTriggers when a new user joins the workspace. Polling; deduped by user id.
Trigger
New User (instant)Triggers when a new user joins the workspace (Slack event team_join).
Action
Add BookmarkAdd a bookmark to a channel.
Action
Add ReactionAdd an emoji reaction to a message.
Action
Add StarSave a message or file by starring it.
Action
Archive ChannelArchive a channel.
Action
Complete ReminderMark a reminder as complete.
Action
Create CanvasCreate a standalone canvas document.
Action
Create ChannelCreate a new public or private channel.
Action
Create Channel CanvasCreate a canvas attached to a channel.
Action
Create ReminderCreate a reminder for a user at a specified time.
Action
Delete CanvasDelete a canvas.
Action
Delete FileDelete a file from the workspace.
Action
Delete MessageDelete a message from a channel by timestamp.
Action
Delete ReminderDelete a reminder.
Action
Delete Scheduled MessageCancel a scheduled message before it is sent.
Action
Edit BookmarkEdit an existing channel bookmark.
Action
Edit CanvasEdit the content of a canvas.
Action
Find Channel by NameList channels filtered to locate a channel by name (client filters the returned list).
Action
Find User by EmailLook up a Slack user by their email address.
Action
Get Channel MessagesFetch the message history of a channel.
Action
Get File InfoGet information about a file.
Action
Get Message PermalinkGet a permanent link to a specific message.
Action
Get Message ReactionsGet the emoji reactions on a message.
Action
Get Team InfoGet information about the workspace.
Action
Get Thread RepliesGet the replies in a message thread.
Action
Get User InfoGet profile information for a Slack user by ID.
Action
Get User PresenceGet a user's current presence status.
Action
Get User ProfileGet a user's profile fields.
Action
Invite User to ChannelInvite one or more users to a channel (comma-separated user IDs).
Action
Join ChannelJoin a public channel.
Action
Leave ChannelLeave a channel.
Action
List BookmarksList the bookmarks in a channel.
Action
List Channel MembersList the members of a channel.
Action
List ChannelsList channels in the workspace (public and private).
Action
List Custom EmojisList the workspace's custom emojis.
Action
List FilesList files in the workspace, optionally filtered by channel or user.
Action
List Pinned ItemsList the items pinned in a channel.
Action
List Scheduled MessagesList messages scheduled to be sent later.
Action
List User GroupsList the workspace's user groups.
Action
List UsersList all users in the workspace.
Action
List User's ChannelsList the channels a user is a member of.
Action
Mark Channel ReadSet the read cursor position in a channel.
Action
Pin MessagePin a message to a channel.
Action
Remove BookmarkRemove a bookmark from a channel.
Action
Remove ReactionRemove an emoji reaction from a message.
Action
Remove StarRemove a star from a message or file.
Action
Remove User from ChannelRemove a member from a channel.
Action
Rename ChannelRename a channel.
Action
Schedule MessageSchedule a message to be sent to a channel at a future Unix time.
Action
Search FilesSearch files across the workspace.
Action
Search MessagesSearch messages across the workspace.
Action
Send Direct MessageOpen a DM with a user and post a message to it.
Action
Send Ephemeral MessageSend a message in a channel that is visible only to one user.
Action
Send MessagePost a message to a channel, private group, or DM.
Action
Set Channel PurposeSet the purpose (description) for a channel.
Action
Set Channel TopicSet the topic for a channel.
Action
Set User PresenceSet the authenticated user's presence status.
Action
Unarchive ChannelRestore an archived channel.
Action
Unpin MessageRemove a pinned message from a channel.
Action
Update MessageUpdate an existing message in a channel by timestamp.
Action
Upload FileUpload a file and share it to one or more channels.
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
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Questions
OnceHub and Slack, 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 Slack when something happens in OnceHub?
Any of Slack's 60 actions, including Create Canvas, Create Channel, Create Channel Canvas and Create Reminder. Your agent maps the data both ways and tests every scenario before it ships.
Can it also run from Slack to OnceHub?
Yes. When something happens in Slack, your agent can act in OnceHub too. This page covers both directions: Slack's triggers and OnceHub's actions are listed here as well.
Do I have to build a connector for OnceHub or Slack?
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 Slack 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.