Light Horse
📍 USThe only broker with native MCP integration — give Claude, ChatGPT, or Gemini a command and Light Horse executes it as a real trade. Zero commissions, fractional shares, and institutional-grade custody through Apex Clearing Corp, amplified by AInvest's AIME Pro AI layer.
Integration Details
- RegionUS
- What You Can TradeStock, ETF, Option
- Account TypeEquity, Margin, Option
- Buy Partial SharesIn Shares, In Dollars
- AI TradingClaude, ChatGPT, Gemini (MCP)
- Order TypesMarket, Limit
- Order DurationDay
- Price DataReal Time
- Extended Hours4:00AM – 9:30AM EST, 4:00PM – 8:00PM EST
- Min. Deposit$100
Signup Rewards
Incentives
| Qualifying Activity | Reward / Bonus |
|---|---|
| Open account + connect via AInvest | 2-Month AIME Pro access (Value: $599.98) |
| First 12 months of account ownership | Agentic execution free — place trades via Claude, ChatGPT, or Gemini at no subscription cost |
Platform Assessment
Light Horse Scorecard
| Category | Score | Expert Verdict |
|---|---|---|
| AI & Agentic Trading | Yes ✓ | "Light Horse is the only broker with native MCP integration — Claude, ChatGPT, and Gemini can execute real trades via natural language with no intermediary layer."— Light Horse, 2026 |
| Trading Platforms | 4.5 / 5 | "Mobile app (iOS and Android) plus a developer API — clean execution interface for self-directed traders with the option to route orders programmatically."— Light Horse, 2026 |
| Fees | $0 ✓ | "Zero commissions on US stocks and ETFs. No account maintenance or inactivity fees. Options available at competitive per-contract rates."— Light Horse Pricing, 2026 |
| Asset Variety | 4.2 / 5 | "US stocks, ETFs, and options — fractional shares supported in both share and dollar amounts. No futures or forex. Best suited for equity-focused portfolios."— Light Horse, 2026 |
| Order Types & Hours | 3.8 / 5 | "Market and Limit orders supported with Day duration. Extended hours available: pre-market 4:00AM–9:30AM EST and after-hours 4:00PM–8:00PM EST. No GTC, Stop, or multi-leg orders currently."— Light Horse, 2026 |
| Security & Regulation | 4.8 / 5 | "SEC and FINRA registered. SIPC insured to $500K. Additional coverage to $37.5M per customer via Apex Clearing Corp — institutional-grade custody infrastructure."— Light Horse Disclosures, 2026 |
| User Experience | 4.3 / 5 | "Minimal learning curve for AI-native users. Conversational trading commands via Claude or ChatGPT lower the friction of active portfolio management significantly."— App Store Reviews, 2026 |
Balanced Analysis
What Makes Light Horse Unique vs. Its Trade-offs
✓ Uniqueness & Strengths
- Native MCP Integration: Light Horse is the only broker where Claude, ChatGPT, and Gemini can execute real trades via natural language. Say "buy 10 shares of AAPL at market" and the AI acts — no manual confirmation required.
- Zero Commissions: US stocks and ETFs are commission-free. No account maintenance or inactivity fees. The $100 minimum deposit makes it accessible to any investor.
- Fractional Shares: Buy by share amount or dollar amount — useful for building positions in high-priced stocks without needing to commit to a full share.
- Extended Hours: Pre-market from 4:00AM and after-hours until 8:00PM EST — one of the widest extended-hours windows available among commission-free brokers.
- Institutional Custody: Clears through Apex Clearing Corp with SIPC insurance plus additional $37.5M coverage per customer — the same clearing infrastructure used by many established brokers.
✗ Risk Considerations
- AI Execution Risk: Conversational trading means your AI assistant can place orders based on ambiguous or misinterpreted instructions. Always review AI-generated order details before confirming, particularly for large positions.
- Limited Order Types: Only Market and Limit orders with Day duration are currently supported. No GTC, Stop, StopLimit, or multi-leg orders — traders who rely on conditional or bracket orders will need to manage those manually.
- Limited Asset Coverage: US stocks, ETFs, and options only. No futures, forex, crypto, or international markets. Cross-asset traders should pair Light Horse with a supplementary broker.
- Newer Platform: Light Horse has a shorter operational track record than established brokerages. Confirm platform reliability before committing significant capital.
Background
About Light Horse
Light Horse Securities is a US-registered broker-dealer (SEC and FINRA) that built its platform specifically for the AI-native trading era. Its defining feature is native Model Context Protocol (MCP) integration — a standard that allows Claude, ChatGPT, Gemini, and other AI assistants to interact directly with external systems, including trading accounts.
Where other brokers require users to copy-paste signals into a trading terminal, Light Horse lets users stay inside their AI conversation. A command to Claude like "rotate my portfolio 20% into QQQ" translates directly into executable orders without leaving the AI interface. Clearing and custody are handled by Apex Clearing Corp, one of the largest independent clearing firms in the US, providing institutional-grade infrastructure behind the consumer-friendly experience.
Disclaimer: AInvest is an independent financial technology platform and is not affiliated with Light Horse Securities. This page is for informational purposes only and does not constitute financial advice or a solicitation to buy or sell securities. AI-assisted trading carries risk — always review order details before execution. Broker promotions, fees, and terms are subject to change at any time. Investing involves risk, including the possible loss of principal. Past performance is not indicative of future results.