#!/usr/bin/env node
import { createServer, http, stdio } from '@sylphx/mcp-server-sdk';
import { readPdf } from './handlers/readPdf.js';
// Transport configuration via environment variables
// MCP_TRANSPORT: 'stdio' (default) | 'http'
// MCP_HTTP_PORT: HTTP port (default: 8080)
// MCP_HTTP_HOST: HTTP hostname (default: '0.0.0.0')
// MCP_API_KEY: Optional API key for authentication (X-API-Key header)
const transportType = process.env['MCP_TRANSPORT'] ?? 'stdio';
const httpPort = Number.parseInt(process.env['MCP_HTTP_PORT'] ?? '8080', 10);
const httpHost = process.env['MCP_HTTP_HOST'] ?? '0.0.0.0';
const apiKey = process.env['MCP_API_KEY'];
/**
* Create the appropriate transport based on configuration
*/
function createTransport() {
if (transportType === 'http') {
return http({
port: httpPort,
hostname: httpHost,
cors: '*', // Allow cross-origin requests for remote access
});
}
return stdio();
}
const server = createServer({
name: 'pdf-reader-mcp',
version: '2.1.0',
instructions:
'MCP Server for reading PDF files and extracting text, metadata, images, and page information.',
tools: { read_pdf: readPdf },
transport: createTransport(),
});
async function main(): Promise<void> {
await server.start();
// Log startup information
if (transportType === 'http') {
console.log(`[PDF Reader MCP] Server running on http://${httpHost}:${httpPort}/mcp`);
console.log(`[PDF Reader MCP] Health check: http://${httpHost}:${httpPort}/mcp/health`);
if (apiKey) {
console.log('[PDF Reader MCP] API key authentication enabled (X-API-Key header)');
}
console.log('[PDF Reader MCP] Project root:', process.cwd());
} else if (process.env['DEBUG_MCP']) {
// Only log startup message in debug mode to prevent stderr pollution
// This prevents handshake failures with MCP clients that expect clean stdio
console.error('[PDF Reader MCP] Server running on stdio');
console.error('[PDF Reader MCP] Project root:', process.cwd());
}
}
main().catch((error: unknown) => {
console.error('[PDF Reader MCP] Server error:', error);
process.exit(1);
});
