Get Gold May 2026 (GCK26) Historical Prices for Backtesting Strategies using this API
Get Gold May 2026 (GCK26) Historical Prices for Backtesting Strategies using this API. On Metals-API start with GET https://metals-api.com/api/latest and query access_key. COMEX gold May-26. Confirm GCK26 on /symbols. Copper Monthly is $19.99/mo — no Free Trial.
MCP: metals-api.com/mcp. Docs: documentation. Symbols: /symbols. Register: metals-api.com/register.
Request: latest GCK26
curl "https://metals-api.com/api/latest?access_key=YOUR_API_KEY&base=USD&symbols=GCK26"Sibling: official latest gold (2018-09-10)
Docs freeze USDXAU 2069.66 on 2018-09-10. That is ISO gold — not GCK26 unless you asked for XAU. Copy the curl for today’s print.
{
"success": true,
"date": "2018-09-10",
"base": "USD",
"rates": {
"USDXAU": 2069.6627794950227
}
}Dated history is /api/YYYY-MM-DD. USD-prefixed inverts are latest-only. Carat gold is GET /api/carat (docs 24K 73.71 per gram).
Go live
1. Register — Copper Monthly, no trial.
2. Confirm GCK26 on /symbols.
3. GET latest, then a dated path if you need history.
Read GCK26 with a Metals key →