asset-price-mcp/build/services/goldprice-org.js

An MCP-compatible service that provides real-time asset prices including precious metals, cryptocurrencies, and more

import { fetchJson } from "../utils.js";
import { apiCache } from "../cache.js";
const BASE_URL = 'https://data-asg.goldprice.org/dbXRates/USD';
export class GoldPriceOrgService {
    getName() {
        return "GoldPriceOrg";
    }
    async getSupportedAssets() {
        return [
            { name: "Gold", symbol: "XAU" },
            { name: "Silver", symbol: "XAG" }
        ];
    }
    async getPrice(symbol, _currency = 'USD') {
        const upperSymbol = symbol.toUpperCase();
        if (upperSymbol !== 'XAU' && upperSymbol !== 'XAG') {
            return null;
        }
        // This API primarily supports USD. We return USD here and let the tool handle conversion.
        const cacheKey = "GOLD_PRICE_ORG_DATA";
        let data = apiCache.get(cacheKey);
        if (!data) {
            data = await fetchJson(BASE_URL);
            if (data) {
                apiCache.set(cacheKey, data);
            }
        }
        if (!data || !data.items || data.items.length === 0)
            return null;
        const item = data.items[0];
        const isGold = upperSymbol === 'XAU';
        const price = isGold ? item.xauPrice : item.xagPrice;
        // const changeAmount = isGold ? item.chgXau : item.chgXag;
        const changePercent = isGold ? item.pcXau : item.pcXag;
        return {
            name: isGold ? "Gold" : "Silver",
            symbol: upperSymbol,
            price: price,
            currency: "USD",
            updatedAt: new Date().toISOString(), // The API returns a formatted date string, using current time for simplicity or could parse `data.date`
            updatedAtReadable: data.date,
            change24h: changePercent
        };
    }
    async getPrices(symbols, currency = 'USD') {
        const promises = symbols.map(s => this.getPrice(s, currency));
        const results = await Promise.all(promises);
        return results.filter((p) => p !== null);
    }
}