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What do you want OnceHub and Writer to do together?
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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 OnceHub can start in Writer
When Booking Completed in OnceHub
then Add file in Writer
When Contact Updated in OnceHub
then Add file to knowledge graph in Writer
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 Writer
Triggers and actions 15 triggers · 33 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.
Action
Add fileUploads a file (PDF, Word, PowerPoint, image, email, HTML, subtitle, CSV or Excel) to your Writer account, optionally attaching it to a Knowledge Graph.
Action
Add file to knowledge graphAdds an uploaded file to a Writer Knowledge Graph.
Action
Add knowledge graphCreate a new Knowledge Graph.
Action
Ask knowledge graphAsk a natural-language question against a Knowledge Graph and get an answer with citations.
Action
Delete filePermanently delete a file from Writer. This cannot be undone.
Action
Delete file from knowledge graphRemove a file from a Knowledge Graph. The file remains in your Writer files.
Action
Delete knowledge graphDelete a Writer Knowledge Graph.
Action
Generate chat completionGenerate a multi-turn chat completion from a list of messages, distinct from the existing single-prompt Send Prompt/Text generation op.
Action
Get fileRetrieve a file's details, including its name, processing status, and the Knowledge Graphs it belongs to.
Action
Get knowledge graphRetrieve a Writer Knowledge Graph by its id, including file processing status and connected web URLs.
Action
List knowledge graphsRetrieve a list of Knowledge Graphs. By default only org-wide Knowledge Graphs are returned; supply team IDs to include graphs deployed to those teams.
Action
List modelsLists the models available to your Writer account for text generation, chat completions and other AI tasks.
Action
Parse PDFParse a PDF document into structured text.
Action
Search webSearches the web for a query using Writer's web search tool and returns a generated answer with the source URLs it drew on.
Action
Send PromptGenerates text from a single prompt with a Writer Palmyra model (or an external model configured for your organization), without conversational context.
Action
Update knowledge graphUpdate a Knowledge Graph's name/description.
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 Writer, 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 Writer when something happens in OnceHub?
Any of Writer's 16 actions, including Send Prompt, Update knowledge graph, Add file and Add file to knowledge graph. Your agent maps the data both ways and tests every scenario before it ships.
Can it also run from Writer to OnceHub?
Writer has no triggers in the catalog today, so automations start in OnceHub. If you need the other direction, ask: your agent reads Writer's API documentation and adds it.
Do I have to build a connector for OnceHub or Writer?
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.