ChatGPT MCP setup for trading
Short answer: To set up a trading MCP server in ChatGPT, open Settings → Apps & Connectors, turn on developer mode if your plan requires it, create a connector, paste the server URL and sign in with OAuth. For trading across crypto perps, onchain stocks, forex, memecoins and Polymarket from one connector, use OpenFinance's URL
https://api.openfinance.tech/agent/mcp; setup takes under 60 seconds, needs no KYC on OpenFinance, and every order is quoted first and confirmed by you.
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
Step by step
- In ChatGPT, open Settings → Apps & Connectors → Advanced and enable developer mode.
- Click Create (or Add connector), name it OpenFinance and paste
https://api.openfinance.tech/agent/mcp. - Choose OAuth and sign in to OpenFinance.
- In a new chat, enable the connector from the tools menu and ask "what OpenFinance tools do you have?"
- Ask for a quote and confirm before anything executes.
Troubleshooting
- Connector not showing tools: start a new chat and enable it in the tools menu.
- Sign-in loop: remove and re-add the connector.
- Token-only servers: ChatGPT's custom form expects OAuth; OpenFinance supports OAuth sign-in, so no header is needed.
Other trading connectors for ChatGPT
Public (stocks, options), PiTrade, Webull and Robinhood also offer ChatGPT connectors, all requiring a brokerage account. OpenFinance covers onchain and crypto markets with no KYC on OpenFinance itself, and can also use your connected IBKR or Robinhood account.
Frequently asked questions
How do I add an MCP server to ChatGPT?
Enable developer mode in ChatGPT's connector settings, create a connector, paste the MCP server URL (for trading, https://api.openfinance.tech/agent/mcp) and sign in.
Can ChatGPT place real trades through MCP?
Yes, with a trading connector such as OpenFinance. Orders are quoted first and placed only after you confirm.
Do I need an API key for ChatGPT?
No, ChatGPT uses OAuth sign-in. API keys are for clients like Claude Code or Cursor.
Is there KYC?
Not on OpenFinance. Fund with a debit card and start in under 60 seconds.