# Mastra.listGateways()

Returns a record of all registered gateways, indexed by their registration keys.

## Usage example

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

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

const gateways = mastra.listGateways()
console.log(Object.keys(gateways)) // ['myGateway', 'anotherGateway']

// Iterate over all gateways
for (const [key, gateway] of Object.entries(gateways)) {
  console.log(`${key}: ${gateway.name}`)
}
```

## Parameters

None.

## Returns

**gateways** (`Record<string, MastraModelGateway>`): A record of gateway instances indexed by registration key

## Related

- [Mastra.getGateway()](https://mastra.ai/reference/core/getGateway) - Get gateway by registration key
- [Mastra.getGatewayById()](https://mastra.ai/reference/core/getGatewayById) - Get gateway by ID
- [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