Why is DuckDuckGo search MCP not working in Claude Code?

It failed in our test on Oct 13, 2026. Errors we observed: answer missing ['Example Domain']; no tool result containing ['Example Domain']

DuckDuckGo search MCP not working in Claude Code? Fixes

Failed It failed in our test on Oct 13, 2026. Below is the exact setup we used in Claude Code (2.1.296 (Claude Code)), every error we saw, and what to check, all from our own run log.

Date tested: Oct 13, 2026 · From our harness, not the maker’s claims · How we test

1. Use the install config we tested in Claude Code

claude mcp add -s local duckduckgo -e DDG_ALLOW_PRIVATE_URLS=1 -- uvx duckduckgo-mcp-server

Replace any <YOUR_…> placeholder and local test paths with your own. Every client’s tested snippet is on the DuckDuckGo search page.

2. Check that Claude Code connects to it

In our run the connect check was OK (connect time not recorded). Our check output:

duckduckgo: uvx duckduckgo-mcp-server - ✔ Connected

Errors we observed

agent task: page read: answer missing ['Example Domain']; no tool result containing ['Example Domain']

Quoted from our run log. Secrets redacted. We list only what we saw.

More help

DuckDuckGo search: all results and setup · Full Claude Code run · General Claude Code MCP troubleshooting