us-legal-mcp

#!/usr/bin/env node import { readFileSync, writeFileSync, mkdirSync } from "fs"; import { join, dirname, resolve } from "path"; import { fileURLToPath } from "url"; import { existsSync } from "fs"; const __filename = fileURLToPath(import.meta.url); const __dirname = dirname(__filename); // Get the package directory (when installed via npm, this is in node_modules) // __dirname points to scripts/, so go up one level to get package root const packageDir = resolve(__dirname, ".."); const distPath = resolve(packageDir, "dist", "index.js"); // Determine Claude Desktop config path based on OS const isMac = process.platform === "darwin"; const isWindows = process.platform === "win32"; const isLinux = process.platform === "linux"; let claudeConfigPath; if (isMac) { claudeConfigPath = join( process.env.HOME, "Library", "Application Support", "Claude", "claude_desktop_config.json", ); } else if (isWindows) { claudeConfigPath = join( process.env.APPDATA || process.env.LOCALAPPDATA, "Claude", "claude_desktop_config.json", ); } else if (isLinux) { claudeConfigPath = join( process.env.HOME, ".config", "Claude", "claude_desktop_config.json", ); } if (!claudeConfigPath) { console.log("⚠️ Could not determine Claude Desktop config path for this OS"); process.exit(0); } // Read existing config or create new one let config = { mcpServers: {} }; if (existsSync(claudeConfigPath)) { try { const configContent = readFileSync(claudeConfigPath, "utf8"); config = JSON.parse(configContent); if (!config.mcpServers) { config.mcpServers = {}; } } catch (error) { console.error("Error reading Claude config:", error.message); config = { mcpServers: {} }; } } // Use absolute path for the dist file const finalDistPath = distPath; const distExists = existsSync(finalDistPath); if (!distExists) { console.log( "⚠️ dist/index.js not found. Please run 'npm run build' after installation.", ); } // Get node executable path const nodePath = process.execPath; // Configure the MCP server // Use absolute path to ensure it works when installed via npm const serverConfig = { command: nodePath, args: [finalDistPath], env: { CONGRESS_API_KEY: process.env.CONGRESS_API_KEY || "", COURT_LISTENER_API_KEY: process.env.COURT_LISTENER_API_KEY || "258021eb4dd1901f1acfdb3f521fb8a7837a9097", }, }; // Update or add the server config const serverName = "us-legal-mcp"; const alreadyConfigured = config.mcpServers[serverName] && JSON.stringify(config.mcpServers[serverName].args) === JSON.stringify(serverConfig.args); if (alreadyConfigured) { // Update existing config, preserve user's API keys if set if ( config.mcpServers[serverName].env && config.mcpServers[serverName].env.CONGRESS_API_KEY ) { serverConfig.env.CONGRESS_API_KEY = config.mcpServers[serverName].env.CONGRESS_API_KEY; } if ( config.mcpServers[serverName].env && config.mcpServers[serverName].env.COURT_LISTENER_API_KEY ) { serverConfig.env.COURT_LISTENER_API_KEY = config.mcpServers[serverName].env.COURT_LISTENER_API_KEY; } } config.mcpServers[serverName] = serverConfig; // Ensure directory exists try { mkdirSync(dirname(claudeConfigPath), { recursive: true }); } catch (error) { // Directory might already exist, that's fine } // Write updated config try { writeFileSync( claudeConfigPath, JSON.stringify(config, null, 2) + "\n", "utf8", ); console.log(`✅ Claude Desktop config updated: ${claudeConfigPath}`); console.log(` MCP server "${serverName}" configured`); console.log(` Server path: ${finalDistPath}`); if (!distExists) { console.log( ` ⚠️ Don't forget to run 'npm run build' to compile TypeScript`, ); } } catch (error) { console.error("Error writing Claude config:", error.message); console.error( `Please manually add the MCP server config to: ${claudeConfigPath}`, ); process.exit(1); }