ShareSeer MCP Server

A Model Context Protocol (MCP) server that provides access to ShareSeer's comprehensive SEC filings, insider transactions, and financial data through Claude and other MCP-compatible AI assistants.

🚀 Quick Start

Claude (web, desktop, or mobile)

No API key needed — you sign in with your ShareSeer account.

1. Go to Settings → Connectors → Add custom connector.

2. Enter the server URL https://shareseer.com/mcp and click Continue.

3. Claude detects Sign in now — leave it selected and click Add.

4. Click Connect and approve the request.

Claude receives a token scoped to your account that refreshes on its own. You can disconnect at any time without affecting your API key.

If you don't have a ShareSeer account yet, sign up free at shareseer.com/signup — you'll be prompted to sign in during step 4.

Claude Code and other MCP clients

Clients that prefer a static credential can pass your API key as a header instead. Get the key from your profile page (it starts with sk-shareseer-).

claude mcp add --transport http shareseer https://shareseer.com/mcp \
  --header "Authorization: Bearer sk-shareseer-YOUR_API_KEY_HERE"

Or in your project's .mcp.json:

{
  "mcpServers": {
    "shareseer": {
      "type": "http",
      "url": "https://shareseer.com/mcp",
      "headers": {
        "Authorization": "Bearer sk-shareseer-YOUR_API_KEY_HERE"
      }
    }
  }
}

The server accepts authorization, x-api-key, api-key, and x-auth-token, so whichever header name your client offers will work. An Authorization value must include the Bearer prefix; x-api-key takes the bare key.

Related MCP server: OpenCapital MCP Server

📊 Available Tools

Company Information

• get_company_info - Get basic information about a company by ticker symbol

• get_company_filings - Get recent SEC filings for a specific company

• get_insider_transactions - Get insider trading transactions for a company

Market-Wide Data

• get_recent_filings - Get recent SEC filings across all companies

• get_recent_insider_activity - Get recent insider trading activity

Largest Transactions

• get_largest_daily_transactions - Get largest daily insider transactions (buyers or sellers)

• get_largest_weekly_transactions - Get largest weekly insider transactions (buyers or sellers)

🌐 REST API

A REST API is available at https://shareseer.com/api/v1 for programmatic access. Authenticate with X-API-Key: YOUR_KEY, Authorization: Bearer YOUR_KEY, or ?api_key=YOUR_KEY.

Rate limit headers (X-RateLimit-Limit-Hourly, X-RateLimit-Remaining-Hourly, etc.) are returned on every request. The /api/v1/usage endpoint returns a JSON breakdown without consuming a request.

💎 Subscription Tiers

Sign Up Free | Upgrade to Premium

🔧 Usage Examples

Get Company Information

Ask Claude: "Tell me about NVIDIA"

Get Recent Insider Transactions

Ask Claude: "Show me recent insider trading for Tesla"

Get Largest Daily Buyers

Ask Claude: "Who made the biggest stock purchases today?"

Get Recent SEC Filings

Ask Claude: "What are the most recent 10-K filings?"

Market Analysis

Ask Claude: "Show me the largest insider selling activity this week" Ask Claude: "Show me the largest insider buying activity this week"

🌐 Remote vs Local Setup

✅ Remote MCP (Recommended)

• No installation required

• Always up-to-date

• Hosted by ShareSeer

• Sign in once and you're done

🐛 Troubleshooting

Common Issues

Claude doesn't show ShareSeer tools:

• Make sure you completed the Connect step — adding the connector alone doesn't sign you in

• Restart Claude after adding the connector

• Check that your ShareSeer account is active

Using a header instead of signing in, and calls fail:

• If you used authorization, the value must start with Bearer (including the space); x-api-key takes the bare key

• Verify your API key is correct and active on your profile page

"Rate limit exceeded" error:

• Check your current subscription tier limits

• Wait for the rate limit window to reset

• Consider upgrading to Premium for higher limits

• Spread out your queries over time

"Invalid API key" error:

• Verify your API key starts with sk-shareseer-

• Check that your ShareSeer account is active

• Get a fresh API key from your profile page

Getting Help

• Free users: GitHub Issues

• Premium users: Email support@shareseer.com

• Documentation: ShareSeer MCP docs

📄 License

This project is licensed under the MIT License - see the LICENSE file for details.

🙏 Support

Love the ShareSeer MCP server? Here's how you can help:

• ⭐ Star this repo on GitHub

• 🐛 Report bugs via GitHub Issues

• 💡 Request features via GitHub Discussions

• 📢 Share with other developers and traders

• 💎 Upgrade to Premium to support continued development

Built with ❤️ by the ShareSeer team

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