Integration
Connect Rex and Scale Fast
When Appraisal Created fires in Rex, your agent runs Create Contact in Scale Fast, or New Contact in Scale Fast to Create Lead in Rex. 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 Rex and Scale Fast 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 Rex and Scale Fast can do together
From Rex to Scale Fast
When Appraisal Created in Rex
then Create Contact in Scale Fast
When Calendar Event Created in Rex
then Find contacts by criteria in Scale Fast
From Scale Fast to Rex
When New Contact in Scale Fast
then Create Lead in Rex
When New Contact in Scale Fast
then Assign Lead in Rex
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 Rex and Scale Fast
Triggers and actions 15 triggers · 13 actions
Trigger
Appraisal CreatedTriggers when a new appraisal is created in Rex.
Trigger
Calendar Event CreatedTriggers when a new calendar event is created in Rex.
Trigger
Calendar Event UpdatedTriggers when a calendar event is updated in Rex.
Trigger
Contact CreatedTriggers when a new contact is created in Rex.
Trigger
Contact UpdatedTriggers when a contact is updated in Rex.
Trigger
Contract CreatedTriggers when a new contract is created in Rex.
Trigger
Contract Status ChangedTriggers when a Rex contract's status changes.
Trigger
Lead CreatedTriggers when a new lead is received or created in Rex.
Trigger
Listing CreatedTriggers when a new listing is created in Rex.
Trigger
Listing PublishedTriggers when a Rex listing is published.
Trigger
Listing Sold/LeasedTriggers when a Rex listing is marked as sold or leased.
Trigger
Listing UpdatedTriggers when a listing is updated in Rex.
Trigger
Note CreatedTriggers when a new note is created in Rex.
Trigger
Property UpdatedTriggers when a property is updated in Rex.
Action
Add TagAdds a tag to a Rex contact.
Action
Assign LeadAssigns an existing Rex lead to a user.
Action
Create LeadCreates a lead in Rex, optionally linked to a contact and listing and assigned to a user.
Action
Create Match ProfileCreates a buyer/renter match profile for a Rex contact.
Action
Create NoteCreates a note in Rex, optionally linked to a contact.
Action
Create ReminderCreates a reminder in Rex for the record owner, optionally linked to a contact.
Action
Search for Full Calendar EventReturns the latest full data for a Rex calendar event by its ID.
Trigger
New ContactTriggers when a new contact is added to your Scale Fast account.
Action
Create ContactCreates a new contact in Scale Fast with an email address and optional name, address, notes and tags.
Action
Delete contactDeletes a contact from your Scale Fast account.
Action
Find contacts by criteriaFinds contacts whose fields match the criteria you supply, such as first name, last name, email or city. Returns up to 50 matching contacts.
Action
List contact listsReturns the contact lists in your Scale Fast account, with each list's name and subscriber count.
Action
Subscribe ListSubscribes an existing contact (by ID or email) to a Scale Fast contact list.
Action
Unsubscribe From ListRemoves a contact from a Scale Fast contact list, identified by contact ID or email.
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
More from Rex
Rex to SalesforceSalesforce is a leading enterprise customer relationship management (CRM) platform.
Rex to SlackSlack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...
Rex to StripeStripe is a payment processing platform for online businesses.
Rex to ShopifyShopify is a commerce platform for online stores and retail point-of-sale.
Rex to TrelloTrello is a visual collaboration tool that organizes projects into boards, lists, and cards.
Rex to ZoomZoom unifies cloud video conferencing, simple online meetings, group messaging, and a software-based...
More into Scale Fast
HubSpot to Scale FastHubSpot is your all-in-one stop for all of your marketing software needs.
Salesforce to Scale FastSalesforce is a leading enterprise customer relationship management (CRM) platform.
Google Sheets to Scale FastGoogle Sheets is Google's online spreadsheet app for creating, editing and sharing spreadsheets.
Gmail to Scale FastGmail is Google’s email service, featuring spam protection, search functions, and seamless integration with...
Google Calendar to Scale FastGoogle Calendar is a time management tool providing scheduling features, event reminders, and integration...
Google Drive to Scale FastGoogle Drive is a cloud storage solution for uploading, sharing, and collaborating on files across devices...
Questions
Rex and Scale Fast, answered
What can start an automation from Rex?
Any of Rex's 14 triggers in the catalog, including Appraisal Created, Calendar Event Created, Calendar Event Updated and Contact Created. Describe the moment in plain language and your agent picks the right one.
What can your agent do in Scale Fast when something happens in Rex?
Any of Scale Fast's 6 actions, including Create Contact, Find contacts by criteria, List contact lists and Subscribe List. Your agent maps the data both ways and tests every scenario before it ships.
Can it also run from Scale Fast to Rex?
Yes. When something happens in Scale Fast, your agent can act in Rex too. This page covers both directions: Scale Fast's triggers and Rex's actions are listed here as well.
Do I have to build a connector for Rex or Scale Fast?
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 Rex and Scale Fast 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.