Integration
Connect Square and Watermelon
When New order fires in Square, your agent runs Add Contact in Watermelon, or New Contact in Watermelon to Add order in Square. 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 Square and Watermelon 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)Grok
Open grok.com/connectors, choose New Connector, then Custom, and paste the address. Grok signs you in in your browser.
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 Square and Watermelon can do together
From Square to Watermelon
When New order in Square
then Add Contact in Watermelon
From Watermelon to Square
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 Square and Watermelon
Triggers and actions 9 triggers · 27 actions
- New order
Triggered when a new order is created at the specified location.
- New or updated customer
Triggered when a customer is created or updated.
- New payment
Triggered when a new payment is received.
- Add catalog object
Creates a catalog object (item, variation, category, tax, discount, modifier list and more) in the Square catalog.
- Add order
Creates a new Square order at a location, with optional line items, taxes, discounts, service charges and a fulfillment.
- Add payment
Creates a payment: charges a card or payment token, or records a cash or external payment the seller received outside Square.
- Add refund
Refund a payment.
- Cancel payment
Cancels (voids) a Square payment that is still in the APPROVED status, i.e. a delayed-capture payment that has not been completed.
- Create customer
Creates a new customer profile.
- Delete catalog object
Deletes a Square catalog object by ID, along with any objects that depend on it (for example an item's variations).
- Delete customer
Deletes a customer profile by ID.
- Find catalog object
Retrieves a catalog object (item, variation, etc.) by ID.
- Find customer
Returns customer details for the specified customer ID.
- Find order
Retrieves an order by ID.
- Find payment
Retrieves a payment by ID.
- List locations
Lists all business locations for the connected Square account.
- List payments
Lists payments for the connected merchant, newest first.
- Search catalog objects
Searches catalog objects by type (ITEM, CATEGORY, etc.).
- Search customers
Searches customer profiles by email, phone, or reference ID.
- Search orders
Searches orders for the specified location(s).
- Update customer
Updates an existing customer profile.
- Update order
Updates an open Square order by adding or replacing fields, or clearing them. Completed or canceled orders cannot be updated.
- Archive Conversation
Triggers when a Watermelon conversation is archived.
- Handover Conversation Agent
Triggers when a Watermelon conversation is handed over to a human agent (its assigned agent changes).
- Handover Conversation Team
Triggers when a Watermelon conversation is handed over to a team (its assigned team changes).
- New Contact
Triggers when a new contact is added in Watermelon.
- New Conversation
Triggers when a new conversation starts in Watermelon.
- Updated Contact
Triggers when a Watermelon contact is created or updated.
- Add Contact
Creates a new contact in Watermelon and returns its ID.
- Find Contact
Returns a Watermelon contact by its ID.
- Find Conversation
Returns a Watermelon conversation by its ID.
- Get conversation
Returns a single conversation by its ID, including its messages, tags, channel and status.
- Get message
Returns a single message by its ID, including its text, type, conversation and read status.
- Search Contacts
Searches Watermelon contacts for a value such as a name, email or phone number and returns the matches.
- Sends a Message
Sends a message in a Watermelon conversation, or starts a new conversation when no conversation ID is given, and returns the message ID.
- Updates an Existing Contact
Updates an existing Watermelon contact's name, email or phone number.
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 Square
Square to WebflowWebflow is a professional website builder and CMS for designing, building, and launching responsive...
Square to EchtPost PostcardsWith EchtPost, you write the postcard digitally in your web browser.
Square to Reverse ContactReverse Contact finds the LinkedIn profiles of your prospects thanks to their email, and recovers all the...
Square to StripeStripe is a payment processing platform for online businesses.
Square to TrelloTrello is a visual collaboration tool that organizes projects into boards, lists, and cards.
Square to ZoomZoom unifies cloud video conferencing, simple online meetings, group messaging, and a software-based...
More into Watermelon
HubSpot to WatermelonHubSpot is your all-in-one stop for all of your marketing software needs.
Salesforce to WatermelonSalesforce is a leading enterprise customer relationship management (CRM) platform.
Slack to WatermelonSlack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...
Google Sheets to WatermelonGoogle Sheets is Google's online spreadsheet app for creating, editing and sharing spreadsheets.
Gmail to WatermelonGmail is Google’s email service, featuring spam protection, search functions, and seamless integration with...
Google Calendar to WatermelonGoogle Calendar is a time management tool providing scheduling features, event reminders, and integration...
Questions
Square and Watermelon, answered
What can start an automation from Square?
Any of Square's 3 triggers in the catalog, including New order, New or updated customer and New payment. Describe the moment in plain language and your agent picks the right one.
What can your agent do in Watermelon when something happens in Square?
Any of Watermelon's 8 actions, including Add Contact, Find Contact, Find Conversation and Get conversation. Your agent maps the data both ways and tests every scenario before it ships.
Can it also run from Watermelon to Square?
Yes. When something happens in Watermelon, your agent can act in Square too. This page covers both directions: Watermelon's triggers and Square's actions are listed here as well.
Do I have to build a connector for Square or Watermelon?
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 Square and Watermelon 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.