Grok vs Muse vs Claude vs ChatGPT for trading
Short answer: None of the four assistants can trade on its own. Each one trades once you connect a trading MCP server, and OpenFinance is the trading layer that works in all four with the same URL (
https://api.openfinance.tech/agent/mcp). Claude and Grok add it as a custom connector, Muse creates one in chat, and ChatGPT connects the MCP server URL with your API key. Through OpenFinance, each can trade crypto, perps, onchain stocks, forex, memecoins and Polymarket, with no KYC on OpenFinance.
Comparison table
| Grok (xAI) | Muse (Meta) | Claude (Anthropic) | ChatGPT (OpenAI) | |
|---|---|---|---|---|
| Trades by itself? | No | No | No | No |
| How it adds a trading MCP | grok.com/connectors → New Connector → Custom | Ask Muse to create a custom connector (or Settings → Connectors) | Settings → Connectors → Add custom connector; Claude Code claude mcp add | Connect the MCP server URL with your API key |
| Auth to OpenFinance | OAuth, or API key | OAuth, or API key in the secure credentials prompt | OAuth; x-api-key header in Claude Code | API key |
| Where it runs | grok.com and the Grok apps | App, web, WhatsApp | Web, Desktop, mobile (synced), Claude Code | Web and the ChatGPT apps |
| Developer path | xAI API remote MCP; Grok CLI | Muse connector platform | Claude Code, Messages API MCP connector | Responses API MCP tool; Codex |
| OpenFinance setup | Paste the OpenFinance URL as a custom connector | Ask Muse to connect the OpenFinance URL | Add OpenFinance as a custom connector | Connect the OpenFinance URL with your API key |
| What it can trade via OpenFinance | Crypto spot and perps, onchain stocks and forex, memecoins, Polymarket, HIP-4 outcomes; options through your own IBKR or Robinhood account connected in the OpenFinance app | Same | Same | Same |
| Approval before orders | Grok confirm settings + OpenFinance confirmation | Muse approval policy + OpenFinance confirmation | Claude tool approval + OpenFinance confirmation | ChatGPT confirmation + OpenFinance confirmation |
Verdict: which should you pick?
- Claude: best for building and testing strategies (Claude Code) and careful step-by-step trades with OpenFinance.
- Grok: best for trading on news and X sentiment, with OpenFinance doing the execution.
- Muse: best for quick trades from WhatsApp or the Meta apps through OpenFinance.
- ChatGPT: fine for everyday trades once the OpenFinance URL is connected with your API key; Codex and the API are the developer path.
Set up OpenFinance in each
FAQ
Which AI is best for trading: Grok, Muse, Claude or ChatGPT?
None of them trades by itself. All four can trade once you connect a trading MCP server such as OpenFinance. Claude has the most mature connector and coding tools, Grok has live X data, Muse runs in WhatsApp and the Meta apps, and ChatGPT connects with an API key. Pick the assistant you already use and add OpenFinance.
How does OpenFinance work with each assistant?
OpenFinance is one hosted MCP URL (https://api.openfinance.tech/agent/mcp). You add it as a custom connector in Grok, Muse or Claude, or connect it with your API key in ChatGPT. The assistant then calls OpenFinance tools to quote, place and cancel orders.
Can ChatGPT trade crypto with OpenFinance?
Yes. Connect the OpenFinance MCP server URL with your API key, and ChatGPT gets the same OpenFinance tools as the other assistants: crypto spot and perps, onchain stocks, forex, memecoins and Polymarket.
Can Grok trade stocks?
Through OpenFinance, Grok can trade onchain stock tokens such as TSLA and NVDA, plus stock and forex perps on Hyperliquid. These are onchain assets, not shares at a US broker. For broker shares and options, connect your own IBKR or Robinhood account in the OpenFinance app.
Which one works in WhatsApp?
Muse. Meta's help says custom connectors work across Muse on the web, the apps and WhatsApp, so OpenFinance can be used there.
Do I need KYC to trade from these assistants?
No KYC on OpenFinance itself. If you connect IBKR or Robinhood through OpenFinance, that uses your own broker account, which the broker verified. A card onramp may ask for ID.
Is it safe to let an AI trade?
Keep approvals on in the assistant, use small sizes, and use a revocable OpenFinance API key. OpenFinance tools ask for confirmation before moving money.
Related
- Trade with Grok, Muse, Claude, Gemini
- Trade prediction markets with AI agents
- OpenFinance vs Alpaca vs CCXT
- Make any AI agent trading-compatible
Sources: https://docs.x.ai/grok/connectors, https://www.meta.com/help/artificial-intelligence/1687253048996149/, https://support.claude.com/en/articles/11175166-get-started-with-custom-connectors-using-remote-mcp, https://help.openai.com/en/articles/12584461-connecting-custom-mcp-servers-in-chatgpt
Prediction markets carry real risk of loss. Start small.