Tip + Sales Tax + Currency Conversion + Discount Stacking Final Price Waterfall Calculator
Builds the true final price as a waterfall: stacked discounts, correct sales-tax base and cascade, tipping on the etiquette base with rounding, per-person split, and mid-market vs DCC conversion.
Send a POST request with your inputs as JSON. File parameters require a separate upload first.
Endpoint
HTTP
POST http://127.0.0.1:3003/en/api/tools/tip-sales-tax-currency-conversion-discount-stacking-calculator
Parameters
Name
Type
Required
Description
subtotal
number
Yes
—
discountLines
textarea
No
—
stackingModel
select
No
—
taxBase
select
No
—
taxLines
textarea
No
—
taxModel
MCP integration
Add this tool to your Model Context Protocol server so AI agents can list and call it.
Server configuration
Add this block to your MCP client configuration:
mcp.json
{
"mcpServers": {
"elysiatools-tip-sales-tax-currency-conversion-discount-stacking-calculator": {
"name": "tip-sales-tax-currency-conversion-discount-stacking-calculator",
"description": "Builds the true final price as a waterfall: stacked discounts, correct sales-tax base and cascade, tipping on the etiquette base with rounding, per-person split, and mid-market vs DCC conversion.",
"baseUrl": "http://127.0.0.1:3003/mcp/sse?toolId=tip-sales-tax-currency-conversion-discount-stacking-calculator",
"command": "",
"args": [],
"env": {},
"isActive": true,
"type": "sse"
}
}
}
List available tools
After connecting to the SSE endpoint, list the exposed tools: