browser-goat — Production-grade web search for AI agents.

Six-stage search pipeline around SearXNG: query intent detection, hybrid BM25+MMR ranking, anti-bot content extraction, quality-gated retry, adaptive exploration, and multi-rollout consensus verification — running entirely on your own infrastructure.

flowchart TD
    Q["Query"] --> L1

    subgraph L1["1. Pre-Search"]
        A["Intent detection<br/>Browser profiles<br/>Language detection"]
    end

    L1 --> SX["SearXNG Engine"]

    SX --> L2
    subgraph L2["2. Post-Search"]
        B["URL normalization<br/>RRF + BM25 + MMR"]
    end

    L2 --> L3
    subgraph L3["3. Extraction"]
        C["7-tier cascading<br/>Anti-bot bypass<br/>Goal-oriented summary"]
    end

    L3 --> L4
    subgraph L4["4. Reliability"]
        D["Give-up detection<br/>Quality-gated retry<br/>Force synthesis"]
    end

    L4 --> L5
    subgraph L5["5. Strategy"]
        E["Query classification<br/>Adaptive exploration<br/>Recursive decomposition"]
    end

    L5 --> L6
    subgraph L6["6. Verification"]
        F["Multi-rollout voting<br/>Consensus verification<br/>LLM tie-breaking"]
    end

    L6 --> A["Answer"]

Quick Start

MCP (AI Agents)

{
  "mcpServers": {
    "browser-goat": {
      "command": "npx",
      "args": ["browser-goat"],
      "env": { "SEARXNG_URL": "http://localhost:8080" }
    }
  }
}

Requires Python 3.13+ and a running SearXNG instance.

CLI

uvx browser-goat search "latest AI research"
uvx browser-goat search "Python vs Rust" --strategy explore
uvx browser-goat extract "https://example.com/article"

Library

pip install browser-goat

from browser_goat import BrowserGoat

meta = BrowserGoat(searxng_url="http://localhost:8080")
result = await meta.search("quantum computing")
print(result.answer)

MCP Tools

Client Configuration

Claude Desktop

{
  "mcpServers": {
    "browser-goat": {
      "command": "uvx",
      "args": ["browser-goat-mcp", "--searxng-url", "http://localhost:8080"]
    }
  }
}

Cursor / VS Code

{
  "mcpServers": {
    "browser-goat": {
      "command": "npx",
      "args": ["browser-goat"],
      "env": { "SEARXNG_URL": "http://localhost:8080" }
    }
  }
}

Docker

Bundled SearXNG + Redis sidecar deployment:

docker compose up

SearXNG starts at localhost:8080, browser-goat API at localhost:8000.

docker exec browser-goat uv run browser-goat search "your query"

How It Works

Each search passes through six layers before returning an answer. The diagram above shows the full pipeline. Layers 1-4 run on every query; Layers 5-6 activate when --strategy or --reliability are set.

Development

git clone https://github.com/Im-Busy/browser-goat.git
cd browser-goat
uv sync

uv run pytest                  # 304 tests (287 unit + 17 integration)
uv run ruff check src/ tests/  # zero violations
uv run mypy src/               # zero errors

Tests require SearXNG at localhost:8080. Skip integration tests:

uv run pytest -m "not integration"

License

MIT