#!/usr/bin/env node
/**
* Local MCP wrapper that forwards requests to the AWS-hosted TeamSnap MCP server.
* This allows Claude Desktop to use the remote MCP via stdio transport.
*/
import { Server } from "@modelcontextprotocol/sdk/server/index.js";
import { StdioServerTransport } from "@modelcontextprotocol/sdk/server/stdio.js";
import {
CallToolRequestSchema,
ListToolsRequestSchema,
} from "@modelcontextprotocol/sdk/types.js";
function getEndpoint(): string {
const endpoint = process.env.TEAMSNAP_MCP_ENDPOINT;
if (!endpoint) {
console.error("Error: TEAMSNAP_MCP_ENDPOINT environment variable is required");
console.error("Set it to your AWS API Gateway endpoint, e.g.:");
console.error(" https://your-api-id.execute-api.us-west-2.amazonaws.com/mcp");
process.exit(1);
}
return endpoint;
}
const AWS_MCP_ENDPOINT = getEndpoint();
interface MCPResponse {
jsonrpc: string;
id: number;
result?: unknown;
error?: { code: number; message: string };
}
async function callRemoteMCP(method: string, params?: unknown): Promise<unknown> {
const response = await fetch(AWS_MCP_ENDPOINT, {
method: "POST",
headers: { "Content-Type": "application/json" },
body: JSON.stringify({
jsonrpc: "2.0",
id: Date.now(),
method,
params,
}),
});
if (!response.ok) {
throw new Error(`MCP request failed: ${response.status} ${response.statusText}`);
}
const data = await response.json() as MCPResponse;
if (data.error) {
throw new Error(data.error.message);
}
return data.result;
}
const server = new Server(
{
name: "teamsnap-mcp-wrapper",
version: "0.1.0",
},
{
capabilities: {
tools: {},
},
}
);
// Forward tools/list to remote
server.setRequestHandler(ListToolsRequestSchema, async () => {
const result = await callRemoteMCP("tools/list") as { tools: unknown[] };
return result;
});
// Forward tools/call to remote
server.setRequestHandler(CallToolRequestSchema, async (request) => {
const { name, arguments: args } = request.params;
const result = await callRemoteMCP("tools/call", { name, arguments: args });
return result as { content: Array<{ type: string; text: string }> };
});
async function main() {
const transport = new StdioServerTransport();
await server.connect(transport);
console.error("TeamSnap MCP wrapper connected to:", AWS_MCP_ENDPOINT);
}
main().catch((error) => {
console.error("Fatal error:", error);
process.exit(1);
});
