DuckDuckGo SearchSAFE
Overview
From the repository's own README, as read at the audited commit. Badges and raw HTML are left out.
English | 中文
A Model Context Protocol server for DuckDuckGo Search
This is a TypeScript-based MCP server that provides DuckDuckGo search functionality. It demonstrates core MCP concepts through:
- Integration with DuckDuckGo Search
- Easy-to-use search tool interface
- Rate limiting and error handling support
Features
Search Tool
duckduckgo_search- Perform web searches using DuckDuckGo API- Required parameter:
query(search query, max 400 characters) - Optional parameter:
count(number of results, 1-20, default 10) - Optional parameter:
safeSearch(safety level: strict/moderate/off, default moderate) - Returns formatted Markdown search results
Rate Limits
- Maximum 1 request per second
- Maximum 15000 requests per month
Development
Prerequisites
- Node.js >= 18
- pnpm >= 8.0.0
Installation
# Install pnpm if not already installed npm install -g pnpm # Install project dependencies pnpm install
Build and Run
Build the server:
pnpm run build
For development with auto-rebuild:
pnpm run watch
Setup in Claude Desktop
To use with Claude Desktop, add the server config:
On MacOS: ~/Library/Application Support/Claude/claude_desktop_config.json On Windows: %APPDATA%/Claude/claude_desktop_config.json
# online
{
"mcpServers": {
"duckduckgo-search": {
"command": "npx",
"args": [
"-y",
"duckduckgo-mcp-server"
]
}
}
}
# local
{
"mcpServers": {
"duckduckgo-search": {
"command": "node",
"args": [
"/path/to/duckduckgo-search/build/index.js"
]
}
}
}![image](ht
b46877fd2692OBSERVED · 2026-10-07Connect
Built from this server's own package name, version and transport as found in its source — not copied from anyone's documentation, so it cannot drift against a page we do not control.
claude mcp add duckduckgo-mcp-server -- npx -y [email protected]
{
"mcpServers": {
"duckduckgo-mcp-server": {
"command": "npx",
"args": [
"-y",
"[email protected]"
]
}
}
}Exposed tools (1)
1 read · 0 write · 0 destructive.
| Tool | Risk | Description |
|---|---|---|
duckduckgo_web_search | read | Performs a web search using the DuckDuckGo, ideal for general queries, news, articles, and online content. |
Trust audit
SAFEgrade B · trust 89/100 Nothing in the source contradicts what it says it does. Grade A is reserved for packages that have also passed the behavioural sandbox.
| Layer | What it checks | Result |
|---|---|---|
| L0 | Provenance & inventory | PASS |
| L1 | Static analysis of the code | PASS |
| L2 | Instruction surface (what it tells the agent) | PASS |
| L3 | Class-specific surface | PASS |
| L4 | Behavioural (sandbox) | SKIPPED |
What the source does
- Filesystem
- none-observed
- Network
- none-observed
- Shell
- none-observed
- Dependencies
- not all pinned
- Secrets in source
- none-found
Findings (1)
node-fetch, @types/node, ts-node, typescript
Gates applied: no_behavioural_pass.
b46877fd2692full audit observations/trust-audit/mcp-server/zhsama__duckduckgo-search-2.json · Report an issue / request a re-scanAudit history
Every audit this server has had. A grade with a past is a grade somebody is still checking.
| Date | Source | Verdict | Grade | Score | Change |
|---|---|---|---|---|---|
| 2026-10-07 | b46877fd2692 | SAFE | B | 89 | first audit |
Questions
What tools does DuckDuckGo Search expose?
1 in total: 1 read-only, 0 that write, and 0 that can delete or overwrite. Every one is listed on this page with its risk.
Is DuckDuckGo Search safe to connect to an agent?
The audit found nothing in the source that contradicts what it says it does, and graded it B (89/100). Grade A is held back for packages that have also passed a sandboxed behavioural run, which is why a clean server reads B.
What credentials does DuckDuckGo Search need?
No credential environment variables were found in its source, so it appears to need none.
How does DuckDuckGo Search run?
It speaks stdio, so it runs as a local process your client starts. It is published on npm as duckduckgo-mcp-server at 0.1.2.
How current is this page?
The grade is for one exact copy of the source (b46877fd2692), read on 2026-10-07. The repository is watched and re-audited when it changes.