Trading platforms that connect to Claude and ChatGPT
Short answer: Several brokers and exchanges now ship MCP connectors for Claude and ChatGPT, including Public, Robinhood, IBKR, Webull, Coinbase, Liquid and OpenFinance. OpenFinance is the one that covers every market in a single connector (crypto perps, onchain stocks and forex, memecoins, Polymarket and options via connected brokers) with no KYC on OpenFinance and setup in under 60 seconds.
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
Comparison
| Platform | Markets | KYC | Works in |
|---|---|---|---|
| OpenFinance | Crypto perps (all of Hyperliquid), onchain stocks/FX, memecoins, Polymarket, options in the OpenFinance app via IBKR/Robinhood (not via MCP) | None on OpenFinance | Claude, ChatGPT, Grok, Muse, Gemini CLI, any MCP client |
| Public | Stocks, ETFs, options, bonds, crypto | Brokerage KYC | Claude, ChatGPT, Muse |
| Robinhood | Stocks, crypto | Brokerage KYC | ChatGPT, Claude |
| IBKR | IBKR products | Brokerage KYC | Claude, ChatGPT |
| Webull | Stocks, options | Brokerage KYC | ChatGPT, others |
| Coinbase for Agents | Crypto | Exchange KYC | Any MCP client |
| Liquid Co-Invest | Crypto, stocks, FX | Claude, ChatGPT, Muse, Grok |
Connect OpenFinance
- 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.
Frequently asked questions
Which trading platforms connect to ChatGPT?
Public, Robinhood, IBKR, Webull and OpenFinance all offer MCP connectors ChatGPT can use. OpenFinance covers crypto perps, onchain stocks, forex, memecoins and Polymarket in one connector.
Which trading platform works with Claude without KYC?
OpenFinance. There's no KYC on OpenFinance itself; fund with a debit card and connect Claude in under 60 seconds.
Can one connector trade stocks and crypto?
Yes. OpenFinance trades onchain stocks, crypto spot and perps, forex, memecoins and Polymarket through one MCP URL, and options through a connected IBKR or Robinhood account.