App

Stax integrations

Connect Stax to any other app, or use it from your AI client over MCP. Stax makes it easy to accept payments in-person and online and provides businesses with the tools they need to grow.

Connects with an API keystaxpayments.com
1 trigger17 actions

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 to automate with Stax?

Ask the assistant

You'll sign in before anything runs. What you typed comes with you.

Connect your AI client

Give your AI client this address.

https://mcp.apiant.ai

One 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.ai

Start 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)

Popular

Stax with the apps people pair it with most

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What your agent can do with Stax

Triggers and actions 1 trigger · 17 actions

  • Trigger
    List Payment

    Triggers when a new payment transaction is recorded in Stax.

  • Action
    Capture payment

    Captures funds from a pre-authorized Stax transaction, turning the pre-authorization into a completed charge. Returns the updated transaction.

  • Action
    Create Customer

    Creates a customer record on the Stax merchant account and returns the new customer.

  • Action
    Create Item

    Creates an item in the merchant's Stax catalog and returns the new catalog item.

  • Action
    Create Scheduled Invoice

    Creates a scheduled invoice that automatically generates invoices for a customer on a one-time or recurring schedule, with optional autopay. Returns the new schedule.

  • Action
    Delete Catalog Item

    Deletes a catalog item from Stax.

  • Action
    Delete payment method

    Deletes a customer's saved payment method in Stax and returns the deleted payment method.

  • Action
    Delete Scheduled Invoice

    Deletes a recurring invoice schedule so it stops generating invoices.

  • Action
    Find Customers

    Searches your Stax customers by name, email, company, phone, address or other details and returns the matching customers.

  • Action
    Find Invoices

    Returns the invoices on the Stax merchant account that match the search criteria you supply, such as keywords, customer name, company, email, price, schedule or payment method.

  • Action
    Find Items

    Searches the merchant's catalog for items matching a name, code, price or other criteria and returns the matching items.

  • Action
    Find Payment Methods

    Returns all saved payment methods (cards and bank accounts) for a Stax customer.

  • Action
    Find Payments

    Returns the payments and other transactions on the merchant account that match the search criteria, such as keywords, customer, date range, amount, type or status.

  • Action
    Make a Payment

    Charges a customer's saved payment method for the amount you specify, or places a pre-authorization to capture later. Returns the resulting transaction.

  • Action
    Refund payment

    Refunds all or part of a settled Stax payment transaction back to the customer.

  • Action
    Update customer

    Updates an existing customer's contact details, address, notes and options in Stax, and returns the updated customer.

  • Action
    Update invoice

    Updates an existing unpaid invoice's customer, amounts, line items, memos and payment options, and returns the updated invoice. Fully paid invoices cannot be edited.

  • Action
    Void payment

    Voids a payment transaction in Stax before it settles, cancelling the charge.

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Questions

Stax, answered

Is there a Stax MCP server?

APIANT's MCP server at https://mcp.apiant.ai works with Stax. Add that address to any AI client that takes a remote MCP server and sign in once in your browser. Your client can then run Stax actions on demand, or have APIANT build, test and run automations that use Stax. Nothing to install.

What can start an automation from Stax?

Any of Stax's 1 trigger in the catalog, including List Payment. Describe the moment in plain language and your agent picks the right one.

What can your agent do in Stax?

Any of Stax's 17 actions, including Create Customer, Create Item, Create Scheduled Invoice and Update customer. Your agent maps the data both ways and tests every scenario before it ships.

Can I use Stax directly from Claude, ChatGPT or Cursor?

Yes. Connect your AI client to APIANT once and it works with Stax two ways. Ask it to do something in Stax 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 on its own. A one-off action uses your plan's tasks the same way an automation step does.

Do I need to write code against the Stax API?

No. APIANT connects to the Stax API for you, with your Stax API key. Describe what you want in plain language and your agent builds it on the Stax triggers and actions in the catalog. If you need an endpoint that is not there yet, your agent reads the Stax API documentation and adds it.

Which apps can Stax connect to?

Any app in the catalog; the list on this page pairs Stax with each of them. If the other app is missing, point your agent at its API documentation and it builds the connector.

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.