Daedra — Self-contained Web Search MCP Server

Multi-Backend Fallback

9 backends tried in order: Serper → Tavily → Bing → Wikipedia → StackOverflow → GitHub → Wiby → DDG Instant → DuckDuckGo HTML. First success wins.

Search Reliability

Per-backend circuit breakers and governor keyed rate limits. Transient errors get classified exponential-backoff retry; CAPTCHA and rate limits fail fast.

Content Extraction

visit_page: HTML via dom_smoothie Readability, PDF via infer + pdf-extract. Responses classified as Html, Pdf, or Binary before Markdown conversion.

Works From Any IP

Wikipedia, StackExchange, GitHub, Wiby, and DDG Instant always work — even from datacenter/VPS IPs where Google, Bing, and DDG HTML are CAPTCHA-blocked.

MCP Server

Drop-in MCP for Claude, Cursor, pawan, or any MCP client. STDIO and SSE transports. Tools: web_search, visit_page, crawl_site (search_duckduckgo alias).

Pure Rust

No Docker. No Python. Single binary. Async I/O, connection pooling, moka response caching. Daedra IS the search infrastructure.

Search Backends

Backend	Type	API Key	Works from VPS?
Serper.dev	Google JSON API	`SERPER_API_KEY`	Yes
Tavily	AI-optimized API	`TAVILY_API_KEY`	Yes
Bing	HTML scraping	None	Sometimes
Wikipedia	OpenSearch API	None	Always
StackExchange	Public API	None	Always
GitHub	Public API	None / `GITHUB_TOKEN`	Always
Wiby	Indie web search	None	Always
DDG Instant	Knowledge graph API	None	Always
DuckDuckGo	HTML scraping	None	Rarely

Quick Start

MCP Server

{
  "mcpServers": {
    "daedra": {
      "command": "daedra",
      "args": ["serve", "--transport", "stdio", "--quiet"]
    }
  }
}

CLI

daedra search "rust async runtime" --num-results 5
daedra fetch https://rust-lang.org
daedra check