Add ShareSeer MCP server, ShareSeer provides access to SEC filings, …

[shareseer]

…financials & insider trading data in real time through a remote MCP

Description

This PR adds ShareSeer MCP server to the registry.

ShareSeer provides:

• SEC filings data (10-K, 10-Q, 8-K forms) & related financials
• Insider trading transaction data per company
• Largest insider purchases & Sales in a day and week

Repository: https://github.com/shareseer/shareseer-mcp-server
Integration: Remote MCP server (https://shareseer.com/mcp)
Authentication: API key (free tier available)
Usage Details: https://shareseer.com/claude

Server Details

• Server:
• Changes to:

Motivation and Context

Enables access to insider transaction data & company filing data within claude

How Has This Been Tested?

Tested with claude web application and desktop application

Breaking Changes

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• [ x] New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Documentation update

Checklist

• [ x] I have read the MCP Protocol Documentation
• [ x] My changes follows MCP security best practices
• [ x] I have updated the server's README accordingly
• [ x] I have tested this with an LLM client
• [ x] My code follows the repository's style guidelines
• [ x] New and existing tests pass locally
• [ x] I have added appropriate error handling
• [ x] I have documented all environment variables and configuration options

Additional context

Decided to go with a remote mcp for simplified usage

[olaservo]

Thanks for your contribution to the servers list. This has been merged in this combined PR: #2370

This is a new process we're trying out, so if you see any issues feel free to re-open the PR and tag me.