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

# Error Handling

Error responses typically include error descriptions and optional error codes. It is recommended to record request ID/error information for troubleshooting.

## Success Case:

```json theme={null}
{
  "jsonrpc": "2.0",
  "result": "3TEjEHSHPfNp5frqxVW...",
  "id": 1
}
```

## Failure Cases:

API key invalid or missing

```json theme={null}
{
  "jsonrpc": "2.0",
  "error":  { "code": -32602, message: "Invalid API Key. ", data: null },
  "id": 1
}
```

Method Error:

```json theme={null}
{
  "jsonrpc": "2.0",
  "error":  { "code": -32601, message: "Method no found.", data: null },
  "id": 1
}
```

## Rate Limits

HTTP code returns 429.