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snjyor

Binance Cryptocurrency MCP

by snjyor

get_avg_price

Calculate the average price for a cryptocurrency trading pair on Binance to determine fair market value for trading decisions.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
symbolYesTrading pair symbol, e.g. BTCUSDT

Implementation Reference

  • Handler function that fetches the current average price from the Binance API endpoint /api/v3/avgPrice, handles errors, and returns the JSON response or error message.
        try {
            const response = await axios.get(`${BASE_URL}/api/v3/avgPrice`, {
                params: {
                    symbol: args.symbol
                },
                proxy: getProxy(),
            });
            return {
                content: [{ type: "text", text: JSON.stringify(response.data, null, 2) }]
            };
        } catch (error: any) {
            return {
                content: [{ type: "text", text: `Failed to get average price: ${error.message}` }],
                isError: true
            };
        }
    }
  • Zod schema defining the input parameter 'symbol' for the get_avg_price tool.
        symbol: z.string().describe("Trading pair symbol, e.g. BTCUSDT")
    },
    async (args: { symbol: string }) => {
  • src/index.ts:210-232 (registration)
    Registration of the 'get_avg_price' tool on the MCP server using server.tool() with input schema and handler function.
        "get_avg_price",
        {
            symbol: z.string().describe("Trading pair symbol, e.g. BTCUSDT")
        },
        async (args: { symbol: string }) => {
            try {
                const response = await axios.get(`${BASE_URL}/api/v3/avgPrice`, {
                    params: {
                        symbol: args.symbol
                    },
                    proxy: getProxy(),
                });
                return {
                    content: [{ type: "text", text: JSON.stringify(response.data, null, 2) }]
                };
            } catch (error: any) {
                return {
                    content: [{ type: "text", text: `Failed to get average price: ${error.message}` }],
                    isError: true
                };
            }
        }
    );
  • Helper function to construct proxy configuration from environment variables, used in API requests including get_avg_price.
    function getProxy():any {
        const proxy: any = {}
        if (proxyURL) {
            const urlInfo = new URL(proxyURL);
            proxy.host = urlInfo.hostname;
            proxy.port = urlInfo.port;
            proxy.protocol = urlInfo.protocol.replace(":", "");
        }
        return proxy
    }
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Tool has no description.

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Parameters1/5

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Tool has no description.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose1/5

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Usage Guidelines1/5

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