Signal8 MCP server

@signal8ai/mcp

MCP (Model Context Protocol) server for Signal8 -- AI-extracted SEC filing intelligence data.

Gives AI agents like Claude, Cursor, and other MCP-compatible tools direct access to:

• Company fundamentals (quotes, financials, earnings, float, executives, peers, news)
• Dilution risk scoring (0-100 Dilution Pressure Score with 5-dimension assessment)
• SEC filing extractions (warrants, convertibles, shelf registrations, and 10 more types)
• Instrument lifecycle tracking (warrants, convertibles, ATMs with XBRL reconciliation)
• Intelligence (counterparties, counsel, insiders, institutions, ROFR triggers, cluster buys)
• Cross-company intelligence (top AUM institutions, cross-company counsel & insider patterns)
• Compliance monitoring (Nasdaq/NYSE deficiency detection, listing classification)
• Company screening (dilution-aware filters with 30+ fields)
• ETF analysis (holdings, sectors, countries, performance, comparables)

Installation

npm install -g @signal8ai/mcp
# or use npx (no install needed)
npx @signal8ai/mcp

Setup

1. Get your API key

Sign up at signal8.ai/mcp and create a key at signal8.ai/settings/api-keys to get your API key.

2. Configure your MCP client

Claude Desktop

Add to your Claude Desktop config file:

macOS: ~/Library/Application Support/Claude/claudedesktopconfig.json Windows: %APPDATA%\Claude\claudedesktopconfig.json

{
  "mcpServers": {
    "signal8": {
      "command": "npx",
      "args": ["-y", "@signal8ai/mcp"],
      "env": {
        "SIGNAL8_API_KEY": "sk_live_your_key_here"
      }
    }
  }
}

Cursor

Add to .cursor/mcp.json in your project root:

{
  "mcpServers": {
    "signal8": {
      "command": "npx",
      "args": ["-y", "@signal8ai/mcp"],
      "env": {
        "SIGNAL8_API_KEY": "sk_live_your_key_here"
      }
    }
  }
}

Other MCP Clients

Set the SIGNAL8APIKEY environment variable and run:

SIGNAL8_API_KEY=sk_live_your_key_here npx @signal8ai/mcp

Available Tools (86)

The server exposes 86 live tools at runtime. The reference tables below are a representative catalog grouped by domain; several documented tools and whole categories (e.g. Extractions and Dilution) are currently disabled and are not registered live, so individual section counts below may exceed what is actually exposed.

Companies (3 tools)

Company Data (13 tools)

Market — Cross-Ticker (6 tools)

Shortened. The full README is on GitHub.