npm package discovery and stats viewer.

Discover Tips

  • General search

    [free text search, go nuts!]

  • Package details

    pkg:[package-name]

  • User packages

    @[username]

Sponsor

Optimize Toolset

I’ve always been into building performant and accessible sites, but lately I’ve been taking it extremely seriously. So much so that I’ve been building a tool to help me optimize and monitor the sites that I build to make sure that I’m making an attempt to offer the best experience to those who visit them. If you’re into performant, accessible and SEO friendly sites, you might like it too! You can check it out at Optimize Toolset.

About

Hi, 👋, I’m Ryan Hefner  and I built this site for me, and you! The goal of this site was to provide an easy way for me to check the stats on my npm packages, both for prioritizing issues and updates, and to give me a little kick in the pants to keep up on stuff.

As I was building it, I realized that I was actually using the tool to build the tool, and figured I might as well put this out there and hopefully others will find it to be a fast and useful way to search and browse npm packages as I have.

If you’re interested in other things I’m working on, follow me on Twitter or check out the open source projects I’ve been publishing on GitHub.

I am also working on a Twitter bot for this site to tweet the most popular, newest, random packages from npm. Please follow that account now and it will start sending out packages soon–ish.

Open Software & Tools

This site wouldn’t be possible without the immense generosity and tireless efforts from the people who make contributions to the world and share their work via open source initiatives. Thank you 🙏

© 2026 – Pkg Stats / Ryan Hefner

@haruspex-guru/mcp-server

v1.3.0

Published

MCP server exposing the Haruspex public API as tools for stock analysis. For use with Claude Code, Claude.ai, Claude Desktop, Cursor, Windsurf, and any other MCP-compatible client.

Readme

@haruspex-guru/mcp-server

npm version npm downloads License: MIT

Live multi-dimension stock scoring for Claude, Cursor, Windsurf, and any MCP-compatible client. Ask any LLM "what's the score for AAPL?" and get a 0-100 composite score, outlook, trading signal, and 26 specialized AI dimensions — fundamentals, sentiment, geopolitical risk, supply chain health, and more.

What you get

You: What's the Haruspex score for NVDA?

Claude: NVDA — Haruspex Score: 72/100 (cautiously bullish)
        Signal: BUY  |  Change: +3 (vs. yesterday)

        Top dimensions:
          AI Exposure       89/100  (+2)
          Competitors       78/100  (=)
          Fundamentals      71/100  (+1)
          Insider Activity  62/100  (-4)

        https://haruspex.guru/s/NVDA

Real data, real backend, real API. Not a prompt template.

Tools

| Tool | What it does | Credits | |------|--------------|--------:| | get_stock_score | Latest score (0–100), outlook, signal, dimension breakdown, share URL | 1 | | get_stock_score_history | Daily scores over a date range (trend analysis, momentum shifts) | 2 | | get_batch_scores | Scores for up to 50 tickers in one call | 1/symbol | | search_stocks | Find tickers by symbol or company name | 1 | | get_stock_news | Recent articles driving score changes | 1 |

Free tier: 100 credits/month. Paid plans on haruspex.guru/pricing.

Quickstart

1. Get an API key

Sign up at haruspex.guru → Settings → API Keys → create.

Format: hrspx_... (different from the embed-key system used by Wix/Lovable).

2. Configure your MCP client

Claude Code

claude mcp add-json --scope user haruspex '{
  "command": "npx",
  "args": ["-y", "@haruspex-guru/mcp-server"],
  "env": {
    "HARUSPEX_API_KEY": "hrspx_your_key_here",
    "HARUSPEX_CLIENT": "claude-code"
  }
}'

Verify:

claude mcp list
# haruspex: ... ✓ Connected

Claude Desktop

Edit claude_desktop_config.json:

  • macOS: ~/Library/Application Support/Claude/claude_desktop_config.json
  • Windows: %APPDATA%\Claude\claude_desktop_config.json
{
  "mcpServers": {
    "haruspex": {
      "command": "npx",
      "args": ["-y", "@haruspex-guru/mcp-server"],
      "env": {
        "HARUSPEX_API_KEY": "hrspx_your_key_here",
        "HARUSPEX_CLIENT": "claude-desktop"
      }
    }
  }
}

Restart Claude Desktop fully (Cmd+Q on macOS, then reopen).

Cursor

// ~/.cursor/mcp.json
{
  "mcpServers": {
    "haruspex": {
      "command": "npx",
      "args": ["-y", "@haruspex-guru/mcp-server"],
      "env": {
        "HARUSPEX_API_KEY": "hrspx_your_key_here",
        "HARUSPEX_CLIENT": "claude-code"
      }
    }
  }
}

Windsurf

Same JSON, path ~/.codeium/windsurf/mcp_config.json.

Claude.ai (web) — Connectors

Settings → Connectors → Add custom MCP server. Same JSON shape.

Base44

See the dedicated walkthrough.

Gemini CLI

Use the dedicated @haruspex-guru/mcp-server-gemini package — same tools, optimized config + ships with the Haruspex Gemini extension.

Example prompts

Drop these into any MCP-connected chat:

  • "What's the Haruspex score for TSLA, and how has it moved this week?"
  • "Compare AAPL, MSFT, and GOOGL. Which has the strongest fundamentals?"
  • "Build me a watchlist of AI-exposure stocks scoring above 70."
  • "What's driving NVDA's score change today?"
  • "Find 5 small-cap energy stocks with bullish Haruspex outlooks."

Skills

For structured analytical workflows (single-ticker analysis, watchlist review, thesis tracking), pair with the Haruspex Skills — published in the Anthropic Skills marketplace.

| Skill | Use case | |-------|---------| | haruspex-stock-analyst | Deep single-ticker analysis | | haruspex-stock-analyst-ja | Same, in Japanese | | haruspex-watchlist-review | Daily/weekly batch review | | haruspex-thesis-tracker | Pressure-test investment theses against current data |

Privacy

This MCP server makes outbound calls only to https://haruspex.guru/api/v1. No third-party telemetry, no LLM data, no chat content. The optional record_skill_invocation tool sends only a skill name + version + client tag (not your prompts, tickers, or user IDs); set HARUSPEX_TELEMETRY=0 to disable.

Environment variables

| Variable | Default | Purpose | |----------|---------|---------| | HARUSPEX_API_KEY | (required) | Your hrspx_... API key | | HARUSPEX_CLIENT | unknown | Tags traffic by host (claude-desktop, cursor, base44, etc) so admin metrics can split by surface | | HARUSPEX_TELEMETRY | 1 | Set 0 to disable the (already minimal) skill-invocation ping |

License

MIT. The MCP server is open source. The Haruspex scoring algorithm and underlying data are proprietary; access governed by the Haruspex API Terms of Service.

Links