Your first sandbox trade with an AI agent: a safe walkthrough

Agents break things. That is acceptable in CI and expensive on a funded trading account. A sandbox with play money is where your agent earns the right to touch real funds. This walkthrough runs a complete first trade on the Ylalo sandbox: connect, preview, confirm, protect, verify.

Why rehearse in a sandbox

Every integration mistake you will ever make is cheaper with play money: wrong symbol, wrong size, a stop that never attached, an agent that loses its connection mid-flow. The Ylalo sandbox runs the same API surface as the main account, so the rehearsal teaches the exact behavior you will rely on later.

Step 1: Connect your agent

Create a Ylalo account at ylalo.com with phone OTP, then connect your agent over MCP or REST. The machine-readable llms.txt gives the agent the connection details in one file. Use the sandbox environment for this rehearsal.

Step 2: Ask for a small preview

Prompt the agent for a small order with protection: "Preview a small position with a stop-loss and take-profit." The agent returns an order preview: instrument, size, estimated cost, stop distance, target. Read it. This is the moment to catch a wrong instrument or a size ten times larger than intended.

Step 3: Confirm, then verify the protection

Say yes. The entry order fills first. The stop-loss and take-profit attach in a separate step after the fill, and attachment can fail. Ask the agent to confirm the stop is resting at the venue. A position without its stop is exposed; the fix is attaching it again, and it takes seconds when you check immediately.

Step 4: Break things on purpose

Now the valuable part. Kill the agent process mid-flow. Preview absurd sizes. Try a market that does not exist. The sandbox shows you the error shapes and what the agent does with them, so none of it surprises you with real funds.

Step 5: Graduate with a rule

Move to the main account only when the rehearsal is boring: previews read cleanly, confirmations are explicit, protection verified every time. Keep one rule from the sandbox forever: the agent proposes, a human confirms. Agents cannot withdraw on Ylalo, but confirmation is what stops bad trades, not just bad actors.

Start your rehearsal at ylalo.com.