# Mastra.getGateway()

Retrieves a gateway by its registration key (the key used when adding the gateway to Mastra).

## Usage example

```typescript
import { Mastra } from '@mastra/core';

const mastra = new Mastra({
  gateways: {
    myGateway: new MyCustomGateway(),
  },
});

const gateway = mastra.getGateway('myGateway');
console.log(gateway.name); // 'My Custom Gateway'
```

## Parameters

**key:** (`string`): The registration key of the gateway

## Returns

**gateway:** (`MastraModelGateway`): The gateway instance

## Throws

Throws an error if no gateway is found with the specified key.

## Related

- [Mastra.getGatewayById()](https://mastra.ai/reference/core/getGatewayById) - Get gateway by ID
- [Mastra.listGateways()](https://mastra.ai/reference/core/listGateways) - List all gateways
- [Mastra.addGateway()](https://mastra.ai/reference/core/addGateway) - Add a gateway
- [MastraModelGateway](https://mastra.ai/reference/core/mastra-model-gateway) - Gateway base class
- [Custom Gateways Guide](https://mastra.ai/models/gateways/custom-gateways) - Creating custom gateways