Can Claude trade real stocks through Papertrade?

No. Papertrade only uses virtual money. It never connects to a real broker or exchange, so Claude can't place real trades through it.

Does Papertrade work on Claude's free plan?

Yes. Claude's Free plan allows one custom connector, so you can add Papertrade without upgrading.

How do I stop Claude from trading in my account?

Switch the connector off in Claude, or revoke Claude's access on Papertrade's Connect AI page. Access stops immediately.

How to paper trade with Claude

Short answer

Add Papertrade to Claude as a custom connector using the server URL, sign in and switch it on in a chat. Claude can then create paper-trading simulators, place orders with virtual money in 45 stock markets and read back its results. It works on every Claude plan, and nothing touches a real broker.

What you need

Claude on the web, desktop or mobile. Custom connectors work on every plan (the Free plan allows one). On Team and Enterprise, an Owner adds it under Organization settings → Connectors.
A free Papertrade account.

Connect Papertrade to Claude

In Claude, open Customize → Connectors. Click + Add and choose Add custom connector.
Name it Papertrade, paste https://papertrade.world/api/mcp and click Continue.
Under Authentication choose Sign in now, keep Use Claude's published identity, leave Request headers empty and click Add.
A Papertrade page opens: sign in and click Allow.
In a chat, click + → Connectors and switch Papertrade on. Then ask Claude to trade.

Using Claude Code instead? Run claude mcp add --transport http --scope user papertrade https://papertrade.world/api/mcp, then claude mcp login papertrade to sign in. Steps for every app are in the setup guides.

Prompts to try

Using Papertrade, create a live US simulator called Claude Test with $50,000 on Robinhood.

Find three liquid tech stocks, add them to my watchlist and buy the strongest one with a 2% stop loss.

Replay the London Stock Exchange for yesterday at 60x and trade it with at most two positions.

How did Claude Test do this week? Show profitable days, win rate and what fees cost me.

What Claude can do with Papertrade

Check market hours for 45 exchanges and search for stocks.
Create live or replay simulators with the real fees of 172 brokers and apps.
Place and cancel orders (market, limit, stop, stop-limit) with stop losses, targets and trailing stops, and close positions.
Control replays: play, pause and change speed up to 120x.
Read the full results report, including a day-by-day breakdown for judging an agent over weeks.

Tips

Ask Claude to explain each trade before it places it, then compare its reasoning with the results in the report.
Use a separate simulator for each set of rules, so results stay comparable.
Every tool call Claude makes is logged on the Connect AI page, and you can revoke its access there at any time.

Frequently asked questions

Can Claude trade real stocks through Papertrade?: No. Papertrade only uses virtual money. It never connects to a real broker or exchange, so Claude can't place real trades through it.
Does Papertrade work on Claude's free plan?: Yes. Claude's Free plan allows one custom connector, so you can add Papertrade without upgrading.
Can I use Papertrade with Claude Code?: Yes. Add it with claude mcp add --transport http --scope user papertrade https://papertrade.world/api/mcp, then run claude mcp login papertrade to sign in.
How do I stop Claude from trading in my account?: Switch the connector off in Claude, or revoke Claude's access on Papertrade's Connect AI page. Access stops immediately.