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Delx FX Convert Amount
x402
Delx FX Convert Amount is a paid API for AI agents from api.delx.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-13).
Convert a monetary amount between two currencies using a caller-supplied exchange rate, returning deterministic conversion results as JSON
Price / call$0.001
Success—
StatusUnknown
How this service works
Convert an amount with a caller-supplied FX rate (no live feed) — first-party local utility for agent preflight and proven micro-utils expansion. Returns deterministic machine-readable JSON for $0.001 USDC via x402 on Base. Execution is first-party, local-only, stateless, and memory-only with no paid upstream, no input retention, no web search, no live RPC, and no mediagen. Results are advisory; the caller owns authorization, budgets, and production controls. Sibling of Delx routes that already…
Output
Returns a deterministic machine-readable JSON object containing the converted amount derived from applying the caller-supplied rate to the input amount, along with the base and quote currency identifiers and conversion side used — no live market data, no external calls, purely computed from provided inputs.
Example use cases
Preflight FX check before trade execution
“Before I submit this trade, convert 5000 GBP to USD at a rate of 1.265 on the sell side so I can verify the expected output amount.”
Invoice amount conversion for billing
“I'm generating an invoice — convert 2500 EUR to JPY using a rate of 160.5 so I can show the equivalent amount to my Japanese client.”
Crypto portfolio value estimation
“I know today's BTC/USDC rate is 67400 — convert 0.75 BTC to USDC using that rate on the buy side so I can see what it's worth in stablecoins.”
Technical details
Endpoint
POSThttps://api.delx.ai/api/v1/x402/fx-convert-amountWhen to prefer
Choose this endpoint when you already have an exchange rate from an external source and need deterministic, stateless computation of the converted amount — ideal for preflight checks, invoice generation, portfolio valuation, or any workflow where you supply your own rate and want a reliable machine-readable result without hitting a live FX feed or incurring upstream data costs.
Side effects
- Missing required fields (base, quote, amount, or rate) result in a validation error
- Non-numeric or zero/negative rate may cause computation errors
- Invalid or unrecognized currency codes may result in rejection or ambiguous output
- Amount as integer may cause precision issues for fractional currency values
- Payment failure via x402 protocol prevents endpoint access
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| base | string | Input field: base. |
| rate | number | Input field: rate. |
| side | string | Input field: side. |
| quote | string | Input field: quote. |
| amount | integer | Input field: amount. |
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true,
"base": "USD",
"note": "Caller supplies rate; not a live FX feed",
"rate": 5.2,
"side": "multiply",
"quote": "BRL",
"amount": 100,
"schema": "delx/util-fx-convert-amount/v1",
"decimals": 6,
"converted": 520
}
}Tags
x402
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