Example A: The weekend build
Claude Code · Stocktwits MCP · Alpaca MCP · paper mode
Give Claude Code a signal and a broker on any always-on computer, and let it paper-trade while you sleep. Alpaca's MCP is live today; the Stocktwits MCP connects the same way.
# 1) Add the signal layer: Stocktwits MCP
claude mcp add stocktwits --transport http https://mcp.stocktwits.com/mcp
# 2) Add the execution layer: Alpaca MCP (live today, endpoint per Alpaca's MCP docs)
claude mcp add alpaca --transport http https://mcp.alpaca.markets \
--env ALPACA_MODE=paper
# 3) Talk to your agent in plain English
claude "Every 15 minutes, check get_trending_symbols on Stocktwits.
For any name with EXTREMELY_HIGH message volume AND >80% bullish sentiment,
read the recent messages, then place a small PAPER order on Alpaca and
log your reasoning. Never touch real money. Notify me before anything live."your agent sits there reading the crowd all day, paper-trading the loud, high-conviction names, and pinging you with its reasoning, zero real dollars at risk.
Here's one real pass of that loop, run against the live MCP on July 22, 2026 — minutes after Alphabet's Q2 earnings hit the tape: