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What do you want Square and SendMails to do together?
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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 Square can start in SendMails
When New order in Square
then Add Campaign in SendMails
When New or updated customer in Square
then Add List in SendMails
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 SendMails
Triggers and actions 3 triggers · 37 actions
Trigger
New orderTriggered when a new order is created at the specified location.
Trigger
New or updated customerTriggered when a customer is created or updated.
Trigger
New paymentTriggered when a new payment is received.
Action
Add catalog objectCreates a catalog object (item, variation, category, tax, discount, modifier list and more) in the Square catalog.
Action
Add orderCreates a new Square order at a location, with optional line items, taxes, discounts, service charges and a fulfillment.
Action
Add paymentCreates a payment: charges a card or payment token, or records a cash or external payment the seller received outside Square.
Action
Add refundRefund a payment.
Action
Cancel paymentCancels (voids) a Square payment that is still in the APPROVED status, i.e. a delayed-capture payment that has not been completed.
Action
Create customerCreates a new customer profile.
Action
Delete catalog objectDeletes a Square catalog object by ID, along with any objects that depend on it (for example an item's variations).
Action
Delete customerDeletes a customer profile by ID.
Action
Find catalog objectRetrieves a catalog object (item, variation, etc.) by ID.
Action
Find customerReturns customer details for the specified customer ID.
Action
Find orderRetrieves an order by ID.
Action
Find paymentRetrieves a payment by ID.
Action
List locationsLists all business locations for the connected Square account.
Action
List paymentsLists payments for the connected merchant, newest first.
Action
Search catalog objectsSearches catalog objects by type (ITEM, CATEGORY, etc.).
Action
Search customersSearches customer profiles by email, phone, or reference ID.
Action
Search ordersSearches orders for the specified location(s).
Action
Update customerUpdates an existing customer profile.
Action
Update orderUpdates an open Square order by adding or replacing fields, or clearing them. Completed or canceled orders cannot be updated.
Action
Add CampaignCreate a new email campaign.
Action
Add ListCreate a new audience list.
Action
Create New SubscriberAdd a new susbcriber to the list
Action
Delete CampaignDelete a campaign.
Action
Delete ListDeletes an audience list in SendMails.
Action
Delete SubscriberDelete a subscriber.
Action
Find Subscriber by EmailReturns the subscribers that match the specified email address.
Action
Get a Specific SubscriberGet information about a specific subscriber
Action
Get CampaignRetrieves the details of a specific SendMails campaign by its UID.
Action
Get ListGet information about a specific audience list.
Action
List CampaignsGet information about all campaigns.
Action
List ListsReturns information about all audience lists in the SendMails account.
Action
List SubscribersDisplay a list's subscribers.
Action
Run CampaignStarts sending a SendMails campaign.
Action
Subscribe SubscriberRe-subscribes an existing subscriber to a mailing list in SendMails.
Action
Unsubscribe SubscriberUnsubscribe a subscriber from a list.
Action
Update CampaignUpdate an existing campaign's settings.
Action
Update SubscriberUpdate a subscriber for a mail list.
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
Square and SendMails, 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 SendMails when something happens in Square?
Any of SendMails's 18 actions, including Create New Subscriber, Update Campaign, Update Subscriber and Add Campaign. Your agent maps the data both ways and tests every scenario before it ships.
Can it also run from SendMails to Square?
SendMails has no triggers in the catalog today, so automations start in Square. If you need the other direction, ask: your agent reads SendMails's API documentation and adds it.
Do I have to build a connector for Square or SendMails?
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.