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FX Revalue Amount
x402
FX Revalue Amount is a paid API for AI agents from api.delx.ai, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-15).
Revalues a notional amount by comparing a historical (source) FX rate against a current (target) FX rate, returning the revalued amount as deterministic JSON.
Price / call$0.002
Success—
StatusUnknown
How this service works
Revalue amount by two rates (historical vs current). Call when ECB-style revaluation when rates are caller-supplied. Returns revalued_amount as deterministic JSON for $0.002 USDC via x402 on Base. First-party local math only—no RPC, live market feed, API keys, storage, or mediagen. Advisory only; the caller owns capital, risk, and production controls.
Output
Returns a JSON object containing revalued_amount, which is the notional amount scaled by the ratio of the target rate (rate_to) to the source rate (rate_from). The computation is purely local arithmetic with no external data fetched.
Example use cases
Mark-to-market FX position
“I have a EUR/USD position of 500,000 units booked at 1.0750 and the current rate is 1.1020 — can you calculate the revalued amount so I can see my unrealized P&L?”
End-of-day treasury revaluation
“Our treasury desk needs to revalue a GBP notional of 2,000,000 from yesterday's closing rate of 1.2630 to today's closing rate of 1.2710. What's the revalued amount?”
Historical trade comparison
“I entered a trade on a notional of 750,000 JPY when the rate was 145.30, and now it's 149.80 — revalue the amount at the new rate for me.”
Technical details
Endpoint
POSThttps://api.delx.ai/api/v1/x402/fx-revalue-amountWhen to prefer
Use this endpoint when you need a deterministic, advisory FX revaluation using two caller-supplied rates (e.g., ECB-style historical-vs-current comparisons) and do not need a live market feed or external rate lookup. Ideal for agents performing mark-to-market, P&L estimation, or treasury revaluation workflows where both rates are already known. Prefer this over market-data endpoints when reproducibility and auditability of the math matters and the caller controls the rate inputs.
Side effects
- Missing required fields (amount, rate_from, or rate_to) result in a validation error
- rate_from of zero causes a division-by-zero error
- Non-numeric inputs for amount or rates return a schema validation error
- Payment failure (insufficient USDC balance or x402 protocol error) blocks the request
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| amount | number | Notional amount to revalue |
| rate_to | number | Target FX rate |
| rate_from | number | Source FX rate |
Output
Schema · Response
{
"type": "json",
"example": {
"schema": "delx/util-fx-revalue-amount/v1",
"revalued_amount": 110
}
}Tags
x402
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