Alpha Vantage MCP Server

#!/usr/bin/env bun /** * Simple test script to verify MCP server is working * Tests the stdio transport by sending initialize and list_tools requests */ import { spawn } from "child_process"; const mcp = spawn("bun", ["src/mcp.ts"], { stdio: ["pipe", "pipe", "inherit"] }); let responseCount = 0; let buffer = ""; mcp.stdout?.on("data", (data) => { buffer += data.toString(); // Try to parse JSON-RPC messages (one per line) const lines = buffer.split("\n"); buffer = lines.pop() || ""; // Keep incomplete line in buffer for (const line of lines) { if (!line.trim()) continue; try { const response = JSON.parse(line); console.log("Response:", JSON.stringify(response, null, 2)); responseCount++; // Exit after getting list_tools response if (responseCount >= 2) { console.log("\n✓ MCP server is working correctly!"); mcp.kill(); process.exit(0); } } catch (error) { console.error("Failed to parse response:", line); } } }); mcp.on("error", (error) => { console.error("MCP process error:", error); process.exit(1); }); mcp.on("exit", (code) => { if (code !== 0 && responseCount < 2) { console.error(`MCP process exited with code ${code}`); process.exit(1); } }); // Send initialize request const initRequest = { jsonrpc: "2.0", id: 1, method: "initialize", params: { protocolVersion: "2024-11-05", capabilities: {}, clientInfo: { name: "test-client", version: "1.0.0" } } }; console.log("Sending initialize request..."); mcp.stdin?.write(JSON.stringify(initRequest) + "\n"); // Send list_tools request after a short delay setTimeout(() => { const listToolsRequest = { jsonrpc: "2.0", id: 2, method: "tools/list", params: {} }; console.log("\nSending list_tools request..."); mcp.stdin?.write(JSON.stringify(listToolsRequest) + "\n"); }, 1000); // Timeout if no response after 10 seconds setTimeout(() => { console.error("\n✗ Timeout: No response from MCP server"); mcp.kill(); process.exit(1); }, 10000);