> ## Documentation Index
> Fetch the complete documentation index at: https://docs.appgoat.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# invalid_param

> 400 · A parameter is missing or invalid

> [!NOTE]
>
> HTTP status **400** · Retry: **Yes, after fixing the request** · Failed requests never cost credits.

```json 400 response theme={null}
{
  "error": {
    "code": "invalid_param",
    "message": "A parameter is missing or invalid.",
    "hint": "…",
    "docs": "https://docs.appgoat.ai/errors/invalid_param"
  }
}
```

## Why

A query, path or body parameter has the wrong type, is out of range (for example `limit` above the maximum) or is required and missing. `error.param` names it.

## Fix

Fix the parameter named in `error.param` and send the request again. The API reference lists every parameter with its type and range.

## Still stuck?

Email [support@appgoat.ai](mailto:support@appgoat.ai) with the endpoint and the time of the request.


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