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The Stack Overflow MCP server is Stack Overflow's own hosted server at
https://mcp.stackoverflow.com. It lets an agent search Stack Overflow and pull
questions and answers into context. It's read-only, runs remotely over HTTPS,
and you sign in with your Stack Overflow account (OAuth). It's still a beta,
limited to 100 calls per day per user. TrustedMCP grades it B: safe by
design, but with little public sign of upkeep.
Changed on 2026-10-29. An earlier version of this guide described a community package,
stackoverflow-mcp, that was never published to npm. Its install command didn't work. Use the official server below instead.
What it connects
- Search Stack Overflow questions and answers.
- Fetch question and answer content into the model context.
- Nothing else: no voting, no posting, no write path. The blast radius is limited to what the returned text does once the model reads it.
Setup
The server is remote, and clients connect through the mcp-remote bridge.
Claude Code:
claude mcp add stackoverflow -- npx -y mcp-remote https://mcp.stackoverflow.com
Claude Desktop (claude_desktop_config.json) or Cursor (~/.cursor/mcp.json):
{
"mcpServers": {
"stackoverflow": {
"command": "npx",
"args": ["-y", "mcp-remote", "https://mcp.stackoverflow.com"]
}
}
}
On first use a browser window opens for Stack Overflow sign-in. No key or token
goes in the config file. Pin the mcp-remote version once it works:
older versions of that bridge had a command-injection CVE (CVE-2025-6514).
Security notes
The server has no known CVEs, runs nothing on your machine except the bridge, and can't write anything. The real caution is the same as for any retrieval server: answer text is untrusted input. A Stack Overflow answer can contain instructions aimed at the model, so keep high-privilege tools behind a human confirmation and never let a fetched answer authorise another tool. See MCP security best practices.
Why it grades B
It earns full marks for authentication (OAuth by default), known CVEs (none) and transport (HTTPS, nothing runs locally). The deduction is maintenance: the public repo (StackExchange/Stack-MCP) has had no commits since December 2025, and the service is still a beta. Full breakdown on the Stack Overflow MCP listing; the method is in how TrustedMCP scores servers.