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

# Is Registered • AI Agent SDK

> is_registered: Check if a runtime is registered.

# is\_registered

Method

> This is a method of the [**RuntimeRegistryProtocol**](https://praison.ai/docs/sdk/reference/praisonaiagents/classes/RuntimeRegistryProtocol.md) class in the [**registry**](https://praison.ai/docs/sdk/reference/praisonaiagents/modules/registry.md) module.

Check if a runtime is registered.

## Signature

```python theme={"theme":{"light":"vitesse-light","dark":"vitesse-dark"}}
def is_registered(runtime_id: str) -> bool
```

## Parameters

**runtime\_id** `str` *required*

Runtime identifier to check

### Returns

**Returns** `bool`

True if runtime is registered, False otherwise

## Used By

* [`RuntimeRegistry.is_available`](../functions/RuntimeRegistry-is_available)

## Source

> [card] [View on GitHub](https://github.com/MervinPraison/PraisonAI/blob/main/src/praisonai-agents/praisonaiagents/runtime/registry.py#L71)
>
> `praisonaiagents/runtime/registry.py` at line 71


This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.