#!/usr/bin/env node
import { readFileSync, writeFileSync, existsSync, mkdirSync } from "fs";
import { join, dirname } from "path";
import { homedir } from "os";
import { fileURLToPath } from "url";
const CONFIG_FILE_NAME = "claude_desktop_config.json";
const CLAUDE_CONFIG_DIR = join(
homedir(),
"Library",
"Application Support",
"Claude",
);
const CLAUDE_CONFIG_FILE = join(CLAUDE_CONFIG_DIR, CONFIG_FILE_NAME);
// Get the package directory path (this script is in scripts/, so go up one level)
const __filename = fileURLToPath(import.meta.url);
const __dirname = dirname(__filename);
const packageDir = dirname(__dirname); // Go up from scripts/ to package root
const MCP_SERVER_CONFIG = {
mcpServers: {
"prediction-markets-mcp": {
command: "node",
args: [join(packageDir, "build", "index.js")],
env: {},
},
},
};
function setupClaudeConfig() {
try {
console.log(
"🔧 Setting up Claude configuration for prediction-markets-mcp...",
);
// Ensure Claude config directory exists
if (!existsSync(CLAUDE_CONFIG_DIR)) {
mkdirSync(CLAUDE_CONFIG_DIR, { recursive: true });
console.log(`📁 Created Claude config directory: ${CLAUDE_CONFIG_DIR}`);
}
let existingConfig = {};
// Read existing config if it exists
if (existsSync(CLAUDE_CONFIG_FILE)) {
try {
const configContent = readFileSync(CLAUDE_CONFIG_FILE, "utf8");
existingConfig = JSON.parse(configContent);
console.log("📖 Found existing Claude configuration");
} catch (error) {
console.log("⚠️ Could not parse existing config, creating new one");
existingConfig = {};
}
}
// Merge with existing config
const mergedConfig = {
...existingConfig,
mcpServers: {
...existingConfig.mcpServers,
...MCP_SERVER_CONFIG.mcpServers,
},
};
// Write the updated config
writeFileSync(CLAUDE_CONFIG_FILE, JSON.stringify(mergedConfig, null, 2));
console.log(
"✅ Successfully configured Claude to use prediction-markets-mcp",
);
console.log(`📄 Config file: ${CLAUDE_CONFIG_FILE}`);
console.log("");
console.log(
"🚀 You can now use prediction markets in Claude by asking questions like:",
);
console.log(
' • "What are the current odds for Trump winning the election?"',
);
console.log(' • "Show me prediction markets about the Supreme Court"');
console.log(' • "What are the latest odds on PredictIt?"');
console.log("");
console.log(
"💡 Note: You may need to restart Claude Desktop for the changes to take effect.",
);
} catch (error) {
console.error("❌ Error setting up Claude configuration:", error.message);
console.log("");
console.log("🔧 Manual setup instructions:");
console.log("1. Open Claude Desktop");
console.log("2. Go to Settings > Developer");
console.log("3. Add a new MCP server with:");
console.log(" - Name: prediction-markets-mcp");
console.log(" - Command: node");
console.log(` - Args: [\"${join(packageDir, "build", "index.js")}\"]`);
process.exit(1);
}
}
// Only run if this script is executed directly
if (import.meta.url === `file://${process.argv[1]}`) {
setupClaudeConfig();
}
export { setupClaudeConfig };
