Binance Cryptocurrency MCP

Implementation Reference

• src/index.ts:150-172 (handler)

  The handler function for get_klines tool that executes the logic - makes an API call to Binance's /api/v3/klines endpoint with the provided parameters (symbol, interval, startTime, endTime, timeZone, limit) and returns formatted K-line/candlestick data or handles errors.

  async (args: { symbol: string; interval: string; startTime?: number; endTime?: number; timeZone?: string; limit?: number }) => {
      try {
          const response = await axios.get(`${BASE_URL}/api/v3/klines`, {
              params: {
                  symbol: args.symbol,
                  interval: args.interval,
                  startTime: args.startTime,
                  endTime: args.endTime,
                  timeZone: args.timeZone,
                  limit: args.limit
              },
              ...getProxyConfig(),
          });
          return {
              content: [{ type: "text", text: JSON.stringify(response.data, null, 2) }]
          };
      } catch (error: any) {
          return {
              content: [{ type: "text", text: `Failed to get K-line data: ${error.message}` }],
              isError: true
          };
      }
  }

• src/index.ts:140-173 (registration)

  Complete registration of the get_klines tool with the MCP server, including schema definition (parameters: symbol, interval, startTime, endTime, timeZone, limit) and the handler function.

  server.tool(
      "get_klines",
      {
          symbol: z.string().describe("Trading pair symbol, e.g. BTCUSDT"),
          interval: z.string().describe("K-line interval, e.g. 1m, 3m, 5m, 15m, 30m, 1h, 2h, 4h, 6h, 8h, 12h, 1d, 3d, 1w, 1M"),
          startTime: z.number().optional().describe("Start timestamp (milliseconds)"),
          endTime: z.number().optional().describe("End timestamp (milliseconds)"),
          timeZone: z.string().optional().describe("Time zone, default UTC"),
          limit: z.number().optional().describe("Number of K-lines to return, default 500, max 1000")
      },
      async (args: { symbol: string; interval: string; startTime?: number; endTime?: number; timeZone?: string; limit?: number }) => {
          try {
              const response = await axios.get(`${BASE_URL}/api/v3/klines`, {
                  params: {
                      symbol: args.symbol,
                      interval: args.interval,
                      startTime: args.startTime,
                      endTime: args.endTime,
                      timeZone: args.timeZone,
                      limit: args.limit
                  },
                  ...getProxyConfig(),
              });
              return {
                  content: [{ type: "text", text: JSON.stringify(response.data, null, 2) }]
              };
          } catch (error: any) {
              return {
                  content: [{ type: "text", text: `Failed to get K-line data: ${error.message}` }],
                  isError: true
              };
          }
      }
  );

• src/index.ts:406-434 (helper)

  Helper function getProxyConfig that configures proxy settings for HTTP requests - supports SOCKS5 proxy (priority) and HTTP proxy fallback, used by the get_klines handler.

  function getProxyConfig(): any {
      // 优先使用SOCKS5代理
      if (socksProxyURL) {
          try {
              const agent = new SocksProxyAgent(socksProxyURL);
              return { httpsAgent: agent, httpAgent: agent };
          } catch (error) {
              console.error(`Failed to create SOCKS proxy agent: ${error}`);
          }
      }
      
      // 回退到HTTP代理
      if (httpProxyURL) {
          try {
              const urlInfo = new URL(httpProxyURL);
              return {
                  proxy: {
                      host: urlInfo.hostname,
                      port: parseInt(urlInfo.port) || (urlInfo.protocol === 'https:' ? 443 : 80),
                      protocol: urlInfo.protocol.replace(":", "")
                  }
              };
          } catch (error) {
              console.error(`Failed to parse HTTP proxy URL: ${error}`);
          }
      }
      
      return {};
  }