Integration
Connect Buildin.AI and Rex
When Database Item Created fires in Buildin.AI, your agent runs Create Lead in Rex, or Appraisal Created in Rex to Add Block to Page in Buildin.AI. 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 Buildin.AI and Rex 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 Buildin.AI and Rex can do together
From Buildin.AI to Rex
When Database Item Created in Buildin.AI
then Create Lead in Rex
From Rex to Buildin.AI
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 Buildin.AI and Rex
Triggers and actions 16 triggers · 15 actions
- Database Item Created
Triggers when a new item (row) is added to a Buildin database.
- Page Updated
Triggers when a page in your Buildin workspace is created or edited.
- Add Block to Page
Appends one or more content blocks (paragraphs, headings, to-dos, lists and more) to a Buildin page or block.
- Add Content to Page
Adds a paragraph of text to the end of a Buildin page (or after/before a chosen block).
- Create Database
Creates a new database in Buildin with the columns you define, optionally inside a parent page.
- Create Database Item
Creates a new item (row) in a Buildin database, with its property values and optional page content.
- Create Page
Creates a new page in Buildin, at the workspace root, under a parent page, or as a row in a database, with optional content.
- Find Page by Title
Searches the workspace for pages whose title matches the text you give and returns the matching pages, with the first match broken out.
- Get Page and Children
Returns a page's details together with the content blocks directly inside it (up to 100).
- Update Database Item
Updates the property values, icon or cover of an existing item in a Buildin database.
- Appraisal Created
Triggers when a new appraisal is created in Rex.
- Calendar Event Created
Triggers when a new calendar event is created in Rex.
- Calendar Event Updated
Triggers when a calendar event is updated in Rex.
- Contact Created
Triggers when a new contact is created in Rex.
- Contact Updated
Triggers when a contact is updated in Rex.
- Contract Created
Triggers when a new contract is created in Rex.
- Contract Status Changed
Triggers when a Rex contract's status changes.
- Lead Created
Triggers when a new lead is received or created in Rex.
- Listing Created
Triggers when a new listing is created in Rex.
- Listing Published
Triggers when a Rex listing is published.
- Listing Sold/Leased
Triggers when a Rex listing is marked as sold or leased.
- Listing Updated
Triggers when a listing is updated in Rex.
- Note Created
Triggers when a new note is created in Rex.
- Property Updated
Triggers when a property is updated in Rex.
- Add Tag
Adds a tag to a Rex contact.
- Assign Lead
Assigns an existing Rex lead to a user.
- Create Lead
Creates a lead in Rex, optionally linked to a contact and listing and assigned to a user.
- Create Match Profile
Creates a buyer/renter match profile for a Rex contact.
- Create Note
Creates a note in Rex, optionally linked to a contact.
- Create Reminder
Creates a reminder in Rex for the record owner, optionally linked to a contact.
- Search for Full Calendar Event
Returns the latest full data for a Rex calendar event by its ID.
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
Buildin.AI and Rex, answered
What can start an automation from Buildin.AI?
Any of Buildin.AI's 2 triggers in the catalog, including Database Item Created and Page Updated. Describe the moment in plain language and your agent picks the right one.
What can your agent do in Rex when something happens in Buildin.AI?
Any of Rex's 7 actions, including Create Lead, Create Match Profile, Create Note and Create Reminder. Your agent maps the data both ways and tests every scenario before it ships.
Can it also run from Rex to Buildin.AI?
Yes. When something happens in Rex, your agent can act in Buildin.AI too. This page covers both directions: Rex's triggers and Buildin.AI's actions are listed here as well.
Do I have to build a connector for Buildin.AI or Rex?
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 Buildin.AI and Rex 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.