Finance
Compare supermarket product prices by normalizing them to a common unit (per 100g, per liter, per piece, etc.). Enter products as 'name, price, quantity, unit' per line. Ranks from cheapest to most expensive per unit and shows savings vs the most expensive option.
Call this tool from your code in three languages.
curl -X POST 'https://api.elysiatools.com/en/api/tools/unit-price-calculator' \
-H 'Content-Type: application/json' \
-d '{"products":"Cereal A, 4.99, 500, g\nCereal B, 3.49, 12, oz\nCereal C, 6.99, 750, g","compareUnit":"100g","decimalPlaces":4}'Send a POST request with your inputs as JSON. File parameters require a separate upload first.
POST https://api.elysiatools.com/en/api/tools/unit-price-calculator| Name | Type | Required | Description |
|---|---|---|---|
| products | textarea | Yes | — |
| compareUnit | select | No | — |
| decimalPlaces | number | No | — |
HTML result
{
"result": "<div>Processed HTML content</div>",
"error": "Error message (optional)",
"message": "Notification message (optional)",
"metadata": {
"key": "value"
}
}Add this tool to your Model Context Protocol server so AI agents can list and call it.
Add this block to your MCP client configuration:
{
"mcpServers": {
"elysiatools-unit-price-calculator": {
"name": "unit-price-calculator",
"description": "Compare supermarket product prices by normalizing them to a common unit (per 100g, per liter, per piece, etc.). Enter products as 'name, price, quantity, unit' per line. Ranks from cheapest to most expensive per unit and shows savings vs the most expensive option.",
"baseUrl": "https://api.elysiatools.com/mcp/sse?toolId=unit-price-calculator",
"command": "",
"args": [],
"env": {},
"isActive": true,
"type": "sse"
}
}
}After connecting to the SSE endpoint, list the exposed tools:
{
"jsonrpc": "2.0",
"id": 1,
"method": "tools/list"
}Invoke the tool by its id, passing arguments built from its parameters:
{
"jsonrpc": "2.0",
"id": 2,
"method": "tools/call",
"params": {
"name": "unit-price-calculator",
"arguments": {
"products": "Cereal A, 4.99, 500, g\nCereal B, 3.49, 12, oz\nCereal C, 6.99, 750, g",
"compareUnit": "100g",
"decimalPlaces": 4
}
}
}Questions or issues? Contact [email protected]