Limits and safety
On Builder an AI app can make 120 calls a minute, with up to 8 running at once; on Architect 300 and 16. A refused call gets a plain message saying why and when to try again. It trades only if you allowed it, tells you what it will do first, and can never move money out.
Calls a minute and at once
| Plan | Calls a minute, per AI app | Calls at once, all your AI apps |
|---|---|---|
| Builder | 120 | 8 |
| Architect | 300 | 16 |
When every place is busy, up to 64 more calls wait their turn, each for up to 30 seconds. One call can be up to 512 KB. The free plan can’t connect an AI app.
Messages your AI app can get back
| Code | Message | When |
|---|---|---|
| 401 | Sign in to BuildTrade™ to use this address. | The call came without a sign-in from this connection. |
| 401 | The sign-in has ended. Connect again. | The sign-in ran out or was revoked. |
| 403 | This address takes calls from AI apps, not from web pages. | A web page in a browser tried to call it. |
| 405 | This address takes POST only. | The call wasn’t a POST. |
| 400 | The request is not valid JSON. | The call couldn’t be read. |
| 413 | The request is too large. | The call was over 512 KB. |
| 415 | Send the request as JSON. | The call wasn’t sent as JSON. |
| 429 | Too many requests in a short time. Try again in N seconds. | Over the calls a minute; Retry-After says when. |
| 429 | Too many requests at once. Wait for the earlier ones to finish, then try again. | Every place busy and 64 calls waiting, or a call waited 30 seconds. |
| 500 | Something went wrong on our side. Try again shortly. | A fault on our side. |
On the free plan the sign-in page itself says: “Connecting an AI app is part of the Builder and Architect plans. You can change plan in Settings › Subscription.”
What protects your account
- An AI app can trade only if you switched on May place orders when you connected it. Without it,
place_order,cancel_order,close_positionandbot_actionreply that the connection may not place orders, and how to change that. - Those four take two calls. The first does nothing and asks the AI app to tell you exactly what it is about to do; the second, with
confirm: true, does it. - Deleting a watchlist takes the same two steps, with
delete: trueandconfirm: true. delete_alertandchart_clear_drawingscan’t be undone; their instructions tell the AI app to say what it will remove first.- No tool withdraws or moves funds.
What the AI app sees
- Only what each tool sends back. Your conversation stays with the AI app: the connection gets tool calls, not your chat.
- Replies never carry your sign-in.
- While it uses your chart, a notice shows on the Trade screen.
- Settings › Security › AI assistant shows when each AI app was last used, and Revoke stops one at once.