Web Research Assistant MCP Server

Comprehensive Model Context Protocol (MCP) server that provides web research and discovery capabilities. Includes 13 tools, 4 resources, and 5 prompts for searching, crawling, and analyzing web content, powered by your local Docker SearXNG instance, the crawl4ai project, and Pixabay API:

1. web_search — federated search across multiple engines via SearXNG
2. search_examples — find code examples, tutorials, and articles (defaults to recent content)
3. search_images — find high-quality stock photos, illustrations, and vectors via Pixabay
4. crawl_url — full page content extraction with advanced crawling
5. package_info — detailed package metadata from npm, PyPI, crates.io, Go
6. package_search — discover packages by keywords and functionality
7. github_repo — repository health metrics and development activity
8. translate_error — find solutions for error messages and stack traces from Stack Overflow (auto-detects CORS, fetch, and web errors)
9. api_docs — auto-discover and crawl official API documentation with examples (works for any API - no hardcoded URLs)
10. extract_data — extract structured data (tables, lists, fields, JSON-LD) from web pages with automatic detection
11. compare_tech — compare technologies side-by-side with NPM downloads, GitHub stars, and aspect analysis (React vs Vue, PostgreSQL vs MongoDB, etc.)
12. get_changelog — NEW! Get release notes and changelogs with breaking change detection (upgrade safely from version X to Y)
13. check_service_status — NEW! Instant health checks for 25+ services (Stripe, AWS, GitHub, OpenAI, etc.) - "Is it down or just me?"

All tools feature comprehensive error handling, response size limits, usage tracking, and clear documentation for optimal AI agent integration.

MCP Resources (Direct Data Lookups)

• package://{registry}/{name} - Package info from npm, PyPI, crates.io, or Go modules
• github://{owner}/{repo} - Repository information and health metrics
• status://{service} - Service health status for 120+ services
• changelog://{registry}/{package} - Package release notes and changelogs

MCP Prompts (Reusable Workflows)

• research_package - Comprehensive package evaluation
• debug_error - Structured error debugging with solutions
• compare_technologies - Side-by-side technology comparison
• evaluate_repository - GitHub repository health assessment
• check_service_health - Multi-service status monitoring

Quick Start

1. Set up SearXNG (5 minutes):

   # Using Docker (recommended)
   docker run -d -p 2288:8080 searxng/searxng:latest
   

   Then configure search engines - see SEARXNG_SETUP.md for optimized settings.

2. Install the MCP server:

   uvx web-research-assistant  # or: pip install web-research-assistant
   

3. Configure Claude Desktop - add to claude_desktop_config.json:

   {
     "mcpServers": {
       "web-research-assistant": {
         "command": "uvx",
         "args": ["web-research-assistant"]
       }
     }
   }
   

4. Restart Claude Desktop and start researching!

⚠️ For best results: Configure SearXNG with GitHub, Stack Overflow, and other code-focused search engines. See SEARXNG_SETUP.md for the recommended configuration.

Prerequisites

Required

• Python 3.10+
• A running SearXNG instance on http://localhost:2288
  • 📖 See SEARXNG_SETUP.md for complete Docker setup guide
  • ⚠️ IMPORTANT: For best results, enable these search engines in SearXNG:
    • GitHub, Stack Overflow, GitLab (for code search - critical!)
    • DuckDuckGo, Brave (for web search)
    • MDN, Wikipedia (for documentation)
    • Reddit, HackerNews (for tutorials and discussions)
    • See SEARXNG_SETUP.md for the full optimized configuration

Optional

• Pixabay API key for image search - Get free key
• Playwright browsers for advanced crawling (auto-installed with crawl4ai-setup)

Developer Setup (if running from source)

uv tool install uv  # if you do not already have uv
uv sync              # creates the virtual environment
uv run crawl4ai-setup  # installs Chromium for crawl4ai

You can also use pip install -r requirements.txt if you prefer pip over uv.

Installation

Option 1: Using uvx (Recommended - No installation needed!)

uvx web-research-assistant

This runs the server directly from PyPI without installing it globally.

Option 2: Install with pip

pip install web-research-assistant
web-research-assistant

Option 3: Install with uv

uv tool install web-research-assistant
web-research-assistant

By default the server communicates over stdio, which makes it easy to wire into Claude Desktop or any other MCP host.

MCP Client Configuration

Claude Desktop

Add to ~/Library/Application Support/Claude/claude_desktop_config.json:

Option 1: Using uvx (Recommended - No installation needed!)

{
  "mcpServers": {
    "web-research-assistant": {
      "command": "uvx",
      "args": ["web-research-assistant"]
    }
  }
}

Option 2: Using installed package

{
  "mcpServers": {
    "web-research-assistant": {
      "command": "web-research-assistant"
    }
  }
}

OpenCode

Add to ~/.config/opencode/opencode.json:

Using uvx (Recommended)

{
  "mcp": {
    "web-research-assistant": {
      "type": "local",
      "command": ["uvx", "web-research-assistant"],
      "enabled": true
    }
  }
}

Using installed package

{
  "mcp": {
    "web-research-assistant": {
      "type": "local",
      "command": ["web-research-assistant"],
      "enabled": true
    }
  }
}

Development (Running from source)

For Claude Desktop:

{
  "mcpServers": {
    "web-research-assistant": {
      "command": "uv",
      "args": [
        "--directory",
        "/ABSOLUTE/PATH/TO/web-research-assistant",
        "run",
        "web-research-assistant"
      ]
    }
  }
}

For OpenCode:

{
  "mcp": {
    "web-research-assistant": {
      "type": "local",
      "command": [
        "uv",
        "--directory",
        "/ABSOLUTE/PATH/TO/web-research-assistant",
        "run",
        "web-research-assistant"
      ],
      "enabled": true
    }
  }
}

Restart your MCP client afterwards. The MCP tools will be available immediately.

Tool behavior

Results are automatically trimmed (default 8 KB) so they stay well within MCP response expectations. If truncation happens, the text ends with a note reminding the model that more detail is available on request.

Resources

MCP Resources provide direct data access via URI templates - perfect for quick lookups without tool calls.

Prompts

MCP Prompts are reusable message templates that guide AI assistants through common workflows.

Configuration

Environment variables let you adapt the server without touching code:

Development

The codebase is intentionally modular and organized:

web-research-assistant/
├── src/searxng_mcp/     # Source code
│   ├── config.py        # Configuration and environment
│   ├── search.py        # SearXNG integration
│   ├── crawler.py       # Crawl4AI wrapper
│   ├── images.py        # Pixabay client
│   ├── registry.py      # Package registries (npm, PyPI, crates, Go)
│   ├── github.py        # GitHub API client
│   ├── errors.py        # Error parser (language/framework detection)
│   ├── api_docs.py      # API docs discovery (NO hardcoded URLs)
│   ├── tracking.py      # Usage analytics
│   └── server.py        # MCP server + 9 tools
├── docs/                # Documentation (27 files)
└── [config files]

Each module is well under 400 lines, making the codebase easy to understand and extend.

Usage Analytics

All tools automatically track usage metrics including:

• Tool invocation counts and success rates
• Response times and performance trends
• Common use case patterns (via the reasoning parameter)
• Error frequencies and types

Analytics data is stored in ~/.config/web-research-assistant/usage.json and can be analyzed to optimize tool usage and identify patterns. Each tool requires a reasoning parameter that helps categorize why tools are being used, enabling better analytics and insights.

Note: As of the latest update, the reasoning parameter is required for all tools (previously optional with defaults). This ensures meaningful analytics data collection.

Documentation

Comprehensive documentation is available in the docs/ directory:

• Project Status - Current status, metrics, roadmap
• API Docs Implementation - NEW tool documentation
• Error Translator Design - Error translator details
• Tool Ideas Ranked - Prioritization and progress
• SearXNG Configuration - Recommended setup
• Quick Start Examples - Usage examples

See the docs README for a complete index.