Mortgage Calculator API + Google Sheets Integration

Why connect them

The Mortgage Calculator API in Google Sheets.

Google Sheets is the go-to collaborative spreadsheet for teams worldwide. Connecting APIs to Google Sheets transforms your spreadsheets into dynamic, self-updating data hubs. Automatically populate rows with API responses, validate data in real-time, and create living dashboards that reflect the latest information.

What you can build

Workflows worth wiring.

Automatically validate email addresses in a contact list and flag invalid entries

Build a real-time currency conversion tracker that updates exchange rates hourly

Create a lead scoring spreadsheet that enriches contact data with IP geolocation

Monitor domain SSL certificates and log expiration dates for your portfolio

Templates

Ready-made ideas.

New row added in Google Sheets Calculate mortgage for amount, rate, and years in row → write monthly_payment.total and total_interest_paid back to the row

Mortgage Estimates in Google Sheets

When loan details are added to a spreadsheet, automatically populate columns with the total monthly payment and total interest paid.

Row updated in Google Sheets Calculate mortgage → append amortization_schedule entries with month, principal_payment, interest_payment, and remaining_balance to a new sheet

Amortization Schedule Export

Generate a full amortization schedule in a separate sheet showing each month's principal, interest, and remaining balance.

Setup

Connect it in a few steps.

Set up with Zapier

1
Set the trigger. Create a Zap with Google Sheets as the trigger app and "New row added" as the event. Connect your account.
2
Add the API action. Add APIVerve as the action, select the Mortgage Calculator API, and map your trigger data to the request.
3
Send it back. Add a second Google Sheets action for "Add row" and map the returned fields (like amount) into it.
4
Test & turn on. Test the Zap with real data to confirm the mapping, then turn it on.

Set up with Make

1
Add the trigger. Create a scenario and add a Google Sheets module set to "New row added". Authenticate your account.
2
Call the API. Add an HTTP module pointing at api.apiverve.com/v1/mortgagecalculator with your x-api-key header. Pass the trigger's data as the input.
3
Parse & map. Add a JSON module to read the response, then a Google Sheets module for "Add row". Map fields like data.amount into place.
4
Activate. Run once to confirm the mapping, then switch the scenario on and set its schedule.

Set up with n8n

1
Add the trigger node. Start a workflow with a Google Sheets trigger node for "New row added" and connect your credentials.
2
Add an HTTP Request node. Point it at api.apiverve.com/v1/mortgagecalculator using Header Auth (x-api-key). Feed in the trigger data.
3
Map with expressions. Add a Google Sheets node for "Add row" and reference the response with expressions such as {{ $json.data.amount }}.
4
Execute & activate. Execute manually to verify, then activate the workflow for production.

The payload

What Google Sheets receives.

amount570000

downpayment0

rate6.8

years30

total_interest_paid767750.49

total_loan_payment1337750.49

Mortgage Calculator API + Google Sheets