Error Codes & Rate Limits
Use this category to decide whether an API failure needs a new login, a corrected request or a delayed retry. The response includes a status and message; read the message before acting.
| Response | Likely next step |
|---|---|
| HTTP 401 or token error | Log in again; avoid retrying the same expired token repeatedly |
| HTTP 403 | Check app permission and authentication context |
| HTTP 429 | Respect the server’s retry interval and reduce request frequency |
| Invalid parameters or symbol | Correct the payload or find the instrument in the Symbol Master |
| Order rejection | Read the rejection reason and inspect order status |
Rate limits can depend on the applicable API plan. Use the current Plans & Rate Limits page for numeric limits before setting a production throttle. Use Live feed for continuous prices.
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