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

# Error Codes

The API uses standard HTTP status codes to indicate whether a request succeeded or failed.

## HTTP Status Codes

| Status Code | Meaning               | Description                                        |
| ----------- | --------------------- | -------------------------------------------------- |
| 200         | OK                    | The request completed successfully.                |
| 201         | Created               | A resource was created successfully.               |
| 400         | Bad Request           | The request is invalid or missing required fields. |
| 401         | Unauthorized          | The API key is missing or invalid.                 |
| 404         | Not Found             | The requested resource could not be found.         |
| 500         | Internal Server Error | An unexpected server error occurred.               |

## Common Errors

### Invalid API Key

#### Status Code

```text theme={null}
401 Unauthorized
```

Response

```text theme={null}
{
  "detail": "Invalid API Key"
}
```

#### Resolution

* Verify that the x-api-key header is included.
* Ensure you are using an active API key.
* Confirm you are using the correct environment (development or production).

### Invalid Request

#### Status Code

```text theme={null}
400 Bad Request
```

Response

```text theme={null}
{
  "detail": "Invalid wallet address"
}
```

#### Resolution

Check that all required request fields are provided and correctly formatted. It could be invalid wallet address or the amount could be zero or less than zero.

### Transaction Not Found

#### Status Code

```text theme={null}
404 Not Found
```

Response

```text theme={null}
{
  "detail": "Transaction not found"
}
```

#### Resolution

Verify that the transaction hash is correct and belongs to your account.