gitmcp.io SSE connection immediately disconnects after initialize #120
Description
Here's the bug report with proper markdown formatting:
markdown# gitmcp.io MCP server immediately shuts down after initialize request
Issue Summary
The MCP remote server at https://gitmcp.io/zie619/n8n-workflows connects successfully but shuts down immediately after sending the initialize request, before receiving any response from the remote server.
Environment
- mcp-remote version: 0.1.29
- Node.js version: v22.2.0
- Platform: macOS (darwin arm64)
- Client: Claude Desktop (claude-ai v0.1.0)
Configuration
{
"n8n-workflows Docs": {
"command": "npx",
"args": [
"mcp-remote",
"https://gitmcp.io/zie619/n8n-workflows"
]
}
}
Expected Behavior
The server should:
Connect to the remote server
Send the initialize request
Wait for and receive the initialize response
Establish the MCP connection
Remain connected for subsequent requests
Actual Behavior
The server:
✅ Connects successfully to the remote server
✅ Sends the initialize request
❌ Immediately shuts down without waiting for a response
❌ Connection fails and Claude Desktop repeatedly attempts to reconnect
Logs
Successful connection followed by immediate shutdown:
[49695] Connecting to remote server: https://gitmcp.io/zie619/n8n-workflows
[49695] Using transport strategy: http-first
[49695] Connected to remote server using StreamableHTTPClientTransport
[49695] Local STDIO server running
[49695] Proxy established successfully between local STDIO and remote StreamableHTTPClientTransport
[49695] Press Ctrl+C to exit
[49695] [Local→Remote] initialize
[49695] {
"jsonrpc": "2.0",
"id": 0,
"method": "initialize",
"params": {
"protocolVersion": "2025-06-18",
"capabilities": {},
"clientInfo": {
"name": "claude-ai (via mcp-remote 0.1.29)",
"version": "0.1.0"
}
}
}
[49695]
Shutting down...
Claude Desktop error logs:
Error from remote server: Error: SSE stream disconnected: TypeError: terminated
at processStream (file:///Users/xxxxxx/.npm/_npx/705d23756ff7dacc/node_modules/mcp-remote/dist/chunk-AKJME7CQ.js:13386:80)
at process.processTicksAndRejections (node:internal/process/task_queues:95:5)Verification
The remote server URL is accessible:
$ curl -I https://gitmcp.io/zie619/n8n-workflows
HTTP/2 200
date: Mon, 06 Oct 2025 20:47:20 GMT
content-type: text/html
server: cloudflareAdditional Context
This issue appears to be on the server side at gitmcp.io. The remote server either:
Is not responding to the initialize request
Is responding too slowly (timeout)
Is returning an invalid/malformed response
Has an SSE stream configuration issue
The mcp-remote client correctly establishes the connection but terminates when it doesn't receive a valid initialize response.