Lookup Company CIK - SEC Edgar MCP Documentation

Overview

The lookup_company_cik tool converts company ticker symbols to CIK (Central Index Key) numbers for more reliable API performance.

Parameters

ticker (string): Company ticker symbol (e.g., “AAPL”)

Example Usage

"What is Apple's CIK number?"

Response Format

{
  "success": true,
  "cik": "0000320193",
  "ticker": "AAPL",
  "suggestion": "Use CIK '0000320193' instead of ticker 'AAPL' for more reliable and faster API calls"
}