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QuantOracle FX Purchasing Power Parity Calculator
x402
QuantOracle FX Purchasing Power Parity Calculator is a paid API for AI agents from api.quantoracle.dev, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-14).
Calculates the PPP-adjusted exchange rate and overvaluation/undervaluation percentage given a base spot rate and inflation differentials over a time horizon
Price / call$0.005
Success—
StatusUnknown
How this service works
QuantOracle: fx/purchasing-power-parity
Output
Returns the PPP-implied exchange rate, the overvaluation or undervaluation percentage relative to the current spot rate, the real exchange rate, and the compounded inflation differential — all computed in about 10ms.
Example use cases
Example prompt
“What's the PPP-adjusted exchange rate for EUR/USD if the current spot rate is 1.08, eurozone inflation is 2.1% and US inflation is 3.2%, projected over 3 years — and is the euro overvalued or undervalued relative to that fair value?”
Technical details
Endpoint
POSThttps://api.quantoracle.dev/v1/fx/purchasing-power-parityWhen to prefer
Use this endpoint when you need a fast, quantitative PPP calculation with explicit inflation rate inputs and a defined time horizon — ideal for FX analysis pipelines, currency fair-value models, or macro research automation where you already have spot rates and inflation estimates and need the derived PPP rate and misalignment metrics in real time.
Side effects
- Missing required fields (base_spot_rate, foreign_inflation, domestic_inflation, time_years) returns a 400 validation error
- Negative time horizon or zero spot rate may return a 422 unprocessable entity error
- Payment failure or insufficient USDC balance returns a 402 payment required error
- Invalid inflation values (e.g. extremely large numbers) may return computation errors
Input
{
"input": {
"body": {
"time_years": 1,
"base_spot_rate": 1.25,
"foreign_inflation": 0.02,
"domestic_inflation": 0.03
},
"type": "http",
"method": "POST",
"bodyType": "json"
}
}Schema · Request body
| Field | Type | Description |
|---|---|---|
| time_years | number | Time horizon in years |
| base_spot_rate | number | Current spot exchange rate |
| foreign_inflation | number | Foreign inflation rate |
| domestic_inflation | number | Domestic inflation rate |
Output
{
"ms": 22.81,
"_meta": {
"url": "https://quantoracle.dev",
"docs": "https://api.quantoracle.dev/docs",
"powered_by": "QuantOracle"
},
"ppp_rate": 1.262255,
"overvaluation_pct": -0.9709,
"real_exchange_rate": 1.237864,
"inflation_differential": 1
}Tags
x402
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