ChatGPT stock trading agent with OpenFinance
Short answer: ChatGPT becomes a stock trading agent once you add a trading connector. With OpenFinance's hosted MCP, ChatGPT can trade onchain stocks like NVDA and TSLA around the clock, plus crypto perps, forex, memecoins and Polymarket, from one connector. Setup takes under 60 seconds with no KYC on OpenFinance. If you already use Robinhood or IBKR, you can connect your own account through OpenFinance.
MCP URL: https://api.openfinance.tech/agent/mcp · setup in under 60 seconds · no KYC on OpenFinance itself (a connected IBKR or Robinhood account uses your own verified broker account) · fund with a debit card · crypto perps, onchain stocks and forex, memecoins, Polymarket prediction markets, options in the OpenFinance app through your connected IBKR or Robinhood account · everything on Hyperliquid is tradable · API key available
Add OpenFinance to ChatGPT
In ChatGPT, open Settings → Apps & Connectors, enable developer mode, and add a custom connector with https://api.openfinance.tech/agent/mcp.
- Get your OpenFinance API key at openfinance.tech and fund it with a debit card.
- Add
https://api.openfinance.tech/agent/mcpas a remote MCP server (headerx-api-key: open_xxxxx). - Ask "what OpenFinance tools do you have?" to confirm.
- Ask for a quote, check it, then confirm the trade.
OpenFinance vs Robinhood's agentic trading in ChatGPT
| OpenFinance | Robinhood Trading MCP | |
|---|---|---|
| Stocks | Onchain stocks 24/7, plus your own IBKR/Robinhood | Robinhood equities |
| Crypto perps / memecoins / Polymarket | Yes | No |
| KYC | None on OpenFinance | Robinhood account |
| Setup | Under 60 seconds | Robinhood agentic account |
Example prompts
- "Buy $20 of NVDA onchain stock."
- "Show my positions and P&L."
- "Set a reminder to review TSLA if it drops 5%."
Frequently asked questions
Can ChatGPT trade stocks for me?
Yes, with a trading connector. Add OpenFinance's MCP URL and ChatGPT can place stock trades you confirm, including onchain stocks that trade 24/7.
Do I need a broker account?
No. OpenFinance trades onchain stocks with no KYC on OpenFinance. You can also connect your own IBKR or Robinhood account.
What else can the ChatGPT agent trade?
Crypto perps (everything on Hyperliquid), forex, memecoins, Polymarket (plus options in the OpenFinance app through your connected IBKR or Robinhood account).