Integration
Connect Stax to Fax.Plus
When List Payment fires in Stax, your agent runs Add contact in Fax.Plus. 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 Stax and Fax.Plus 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 Stax can start in Fax.Plus
When List Payment in Stax
then Add contact in Fax.Plus
When List Payment in Stax
then Update contact in Fax.Plus
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 Stax and Fax.Plus
Triggers and actions 1 trigger · 30 actions
Trigger
List PaymentTriggers when a new payment transaction is recorded in Stax.
Action
Capture paymentCaptures funds from a pre-authorized Stax transaction, turning the pre-authorization into a completed charge. Returns the updated transaction.
Action
Create CustomerCreates a customer record on the Stax merchant account and returns the new customer.
Action
Create ItemCreates an item in the merchant's Stax catalog and returns the new catalog item.
Action
Create Scheduled InvoiceCreates 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 ItemDeletes a catalog item from Stax.
Action
Delete payment methodDeletes a customer's saved payment method in Stax and returns the deleted payment method.
Action
Delete Scheduled InvoiceDeletes a recurring invoice schedule so it stops generating invoices.
Action
Find CustomersSearches your Stax customers by name, email, company, phone, address or other details and returns the matching customers.
Action
Find InvoicesReturns 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 ItemsSearches the merchant's catalog for items matching a name, code, price or other criteria and returns the matching items.
Action
Find Payment MethodsReturns all saved payment methods (cards and bank accounts) for a Stax customer.
Action
Find PaymentsReturns 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 PaymentCharges 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 paymentRefunds all or part of a settled Stax payment transaction back to the customer.
Action
Update customerUpdates an existing customer's contact details, address, notes and options in Stax, and returns the updated customer.
Action
Update invoiceUpdates 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 paymentVoids a payment transaction in Stax before it settles, cancelling the charge.
Action
Add contactCreates a new contact in your Fax.Plus address book with a name and fax number, plus optional email, phone numbers, notes and groups.
Action
Delete contactDeletes a contact from your Fax.Plus address book.
Action
Delete faxDeletes a received or sent fax record from a Fax.Plus account by its ID.
Action
Delete outbox faxDeletes an outgoing fax that is still scheduled for sending from the Fax.Plus outbox.
Action
Get accountReturns the profile, status and notification and fax settings of your Fax.Plus account or of a member of your corporate account.
Action
Get outbox faxReturns the details of a fax currently waiting to be sent from the outbox, including its status, recipients, files and send settings.
Action
List contactsReturns the contacts in your Fax.Plus account, optionally filtered by name, fax number, group or note, or looked up by specific contact IDs.
Action
List faxesReturns the fax records in your inbox, sent or spam folder, or a corporate member's, optionally filtered by date, status, number, read state and page count.
Action
List numbersReturns the fax numbers purchased by or assigned to an account, with each number's status, owner, assignees and notification settings.
Action
List outbox faxesReturns the faxes in an account's outbox that have not been sent yet.
Action
Send a FaxSends a fax to one or more numbers, from a document link, previously uploaded files, or an existing fax, and returns the ID of the fax created for each recipient.
Action
Update contactUpdates an existing contact in your Fax.Plus address book and returns the updated contact. Fields left blank keep their current values.
Action
Update faxUpdates a received or sent fax record's comment or shared note, or marks it as read or unread.
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
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Questions
Stax and Fax.Plus, answered
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 Fax.Plus when something happens in Stax?
Any of Fax.Plus's 13 actions, including Send a Fax, Update contact, Update fax and Add contact. Your agent maps the data both ways and tests every scenario before it ships.
Can it also run from Fax.Plus to Stax?
Fax.Plus has no triggers in the catalog today, so automations start in Stax. If you need the other direction, ask: your agent reads Fax.Plus's API documentation and adds it.
Do I have to build a connector for Stax or Fax.Plus?
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 Stax and Fax.Plus 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.