Building an MCP Server for Prop Trading: How I Gave Claude + ChatGPT Live Access to 20+ Prop Firm Deals

Last month I published propfirmdealfinder-mcp-server to npm — an MCP server that lets Claude, ChatGPT, and any MCP-compatible AI query live prop firm discount codes, compare firms, and find the cheapest trading challenges across 20+ proprietary trading firms. Here's why I built it, what it does, and what I learned. The problem Prop trading discounts change weekly. Firms run flash sales, new firms launch, old ones die, discount codes rotate. For a trader trying to decide between FTMO, TopStep, Bu