# Inflation Calculator — REST API endpoint `inflation-calculator`

Return what an amount of money from one year is worth in another year using historical CPI data, with total inflation, average yearly inflation, and the change in purchasing power (all in percent). USD covers 1913-2025 (BLS); TRY covers 2003-2025 (TÜİK).

- Category: finance
- MCP server: https://mcp.findutils.com/ (Streamable HTTP, no API keys, 120 req/min per IP)
- REST endpoint: POST https://api.findutils.com/api/tools/inflation-calculator/execute (no API keys, 60 req/min per IP)
- Reference page: https://findutils.com/api/inflation-calculator/
- Same tool on the other surface: https://findutils.com/mcp/inflation-calculator/

## Call the endpoint (verified example)

```bash
curl -X POST https://api.findutils.com/api/tools/inflation-calculator/execute \
  -H "Content-Type: application/json" \
  -d '{
    "amount": 100,
    "from_year": 2000,
    "to_year": 2025,
    "currency": "USD"
  }'

# Parameter schema
curl https://api.findutils.com/api/tools/inflation-calculator
```

## Input schema

| Argument | Type | Required | Description |
|---|---|---|---|
| `amount` | number | yes | Amount of money in the from_year. |
| `from_year` | integer | yes | Start year. |
| `to_year` | integer | yes | End year. May be earlier than from_year. |
| `currency` | string (USD \| TRY) | no | CPI series: USD or TRY. Default: USD. |

Example arguments (verified):

```json
{
  "amount": 100,
  "from_year": 2000,
  "to_year": 2025,
  "currency": "USD"
}
```

OpenAPI 3.1 spec: https://findutils.com/api/openapi.json · Interactive docs: https://findutils.com/api/docs/

## Also an MCP tool

```bash
claude mcp add findutils --transport http https://mcp.findutils.com/
```

Then ask the client to call `findutils:inflation_calculator`. Full MCP reference: https://findutils.com/mcp/inflation-calculator/

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