Does DuckDuckGo search work with Claude Code?
Not in our test. DuckDuckGo search installed in Claude Code but failed our agent task on Oct 13, 2026. Details of what went wrong are below.
Result
ResultFailed
Date testedOct 13, 2026
Plan tested onClaude Pro
App version2.1.296 (Claude Code)
Modelhaiku
Steps
- install OK
- connected OK
- tools visible OK
- agent task: web search OKlive keyless web search
- agent task: page read Failedfetch a public page and return its contentWhy it failed: answer missing ['Example Domain']; no tool result containing ['Example Domain']
From our own harness run, not the maker’s claims. How we test.
What happened in this run
Install config we used
claude mcp add -s local duckduckgo -e DDG_ALLOW_PRIVATE_URLS=1 -- uvx duckduckgo-mcp-serverConnection check
duckduckgo: uvx duckduckgo-mcp-server - ✔ ConnectedTools check
verified via task step: agent saw and called the server's tools
Agent task: web search
- Tool calls, in order:
mcp__duckduckgo__search,mcp__duckduckgo__search,mcp__duckduckgo__fetch_content
Agent task: page read
- Tool calls, in order:
mcp__duckduckgo__fetch_content
Raw details from our harness log for this run. Secrets redacted.
Set it up in Claude Code
Copy-paste config for every app is on the DuckDuckGo search page. Not connecting? Claude Code MCP troubleshooting.
Other apps we tested it in: Cursor (passed) · Claude Desktop (passed) · ChatGPT (Codex) (passed).