#!/usr/bin/env node
import { Server } from '@modelcontextprotocol/sdk/server/index.js';
import { StdioServerTransport } from '@modelcontextprotocol/sdk/server/stdio.js';
import { ToolHandlers } from './tool-handlers.js';
const OPENROUTER_API_KEY = process.env.OPENROUTER_API_KEY;
const DEFAULT_MODEL = process.env.OPENROUTER_DEFAULT_MODEL;
const DEFAULT_MAX_TOKENS = process.env.OPENROUTER_MAX_TOKENS; // String | undefined
const DEFAULT_QUANTIZATIONS = process.env.OPENROUTER_PROVIDER_QUANTIZATIONS?.split(',').map(q => q.trim()).filter(q => q) || undefined; // string[] | undefined
const DEFAULT_IGNORED_PROVIDERS = process.env.OPENROUTER_PROVIDER_IGNORE?.split(',').map(p => p.trim()).filter(p => p) || undefined; // string[] | undefined
// Phase 2 Provider Defaults
const DEFAULT_PROVIDER_SORT = process.env.OPENROUTER_PROVIDER_SORT as "price" | "throughput" | "latency" | undefined; // Validate?
const DEFAULT_PROVIDER_ORDER = process.env.OPENROUTER_PROVIDER_ORDER?.split(',').map(p => p.trim()).filter(p => p) || undefined; // string[] | undefined
const DEFAULT_PROVIDER_REQUIRE_PARAMETERS = process.env.OPENROUTER_PROVIDER_REQUIRE_PARAMETERS?.toLowerCase() === 'true' ? true : undefined; // boolean | undefined
const DEFAULT_PROVIDER_DATA_COLLECTION = process.env.OPENROUTER_PROVIDER_DATA_COLLECTION as "allow" | "deny" | undefined; // Validate?
const DEFAULT_PROVIDER_ALLOW_FALLBACKS = process.env.OPENROUTER_PROVIDER_ALLOW_FALLBACKS?.toLowerCase() === 'true' ? true : undefined; // boolean | undefined
if (!OPENROUTER_API_KEY) {
throw new Error('OPENROUTER_API_KEY environment variable is required');
}
class OpenRouterServer {
private server: Server;
private toolHandlers: ToolHandlers;
constructor() {
this.server = new Server(
{
name: 'openrouter-server',
version: '2.2.0',
},
{
capabilities: {
tools: {},
},
}
);
// Initialize tool handlers
this.toolHandlers = new ToolHandlers(
this.server,
OPENROUTER_API_KEY!,
DEFAULT_MODEL,
DEFAULT_MAX_TOKENS,
DEFAULT_QUANTIZATIONS,
DEFAULT_IGNORED_PROVIDERS,
// Pass Phase 2 Defaults
DEFAULT_PROVIDER_SORT,
DEFAULT_PROVIDER_ORDER,
DEFAULT_PROVIDER_REQUIRE_PARAMETERS,
DEFAULT_PROVIDER_DATA_COLLECTION,
DEFAULT_PROVIDER_ALLOW_FALLBACKS
);
// Error handling
this.server.onerror = (error) => console.error('[MCP Error]', error);
process.on('SIGINT', async () => {
await this.server.close();
process.exit(0);
});
}
async run() {
const transport = new StdioServerTransport();
await this.server.connect(transport);
console.error('OpenRouter MCP server running on stdio');
}
}
const server = new OpenRouterServer();
server.run().catch(console.error);
