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GET /v1/cross

Implied cross rate from chained pairs

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Custom headers (optional)
api.oanor.com/fxcross-api

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Code snippets

curl "https://api.oanor.com/fxcross-api/v1/cross" \
  -H "x-oanor-key: oanor_test_..."
await fetch("https://api.oanor.com/fxcross-api/v1/cross", {
  headers: { "x-oanor-key": "oanor_test_..." }
});
$ch = curl_init("https://api.oanor.com/fxcross-api/v1/cross");
curl_setopt($ch, CURLOPT_HTTPHEADER, ["x-oanor-key: oanor_test_..."]);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$out = curl_exec($ch);
import requests
requests.get(
    "https://api.oanor.com/fxcross-api/v1/cross",
    headers={"x-oanor-key": "oanor_test_..."}
)

Example response

A real response from this endpoint, captured by the latest health check.

{
    "data": {
        "base": "EUR",
        "legs": [
            {
                "pair": "EUR/USD",
                "rate": 1.08
            },
            {
                "pair": "USD/JPY",
                "rate": 150
            }
        ],
        "pair": "EUR/JPY",
        "path": "EUR -> USD -> JPY",
        "quote": "JPY",
        "source": "FX-CROSS",
        "arbitrage": true,
        "discrepancy": 1,
        "quoted_rate": 163,
        "implied_rate": 162,
        "inverse_rate": 0.0061728395,
        "discrepancy_bps": 61.73
    },
    "meta": {
        "timestamp": "2026-06-11T07:49:28.023Z",
        "request_id": "51be726c-6bda-439a-bb9b-556acd55f42e"
    },
    "status": "ok",
    "message": "Cross rate computed",
    "success": true
}