> For the complete documentation index, see [llms.txt](https://docs.zofinance.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.zofinance.io/building-on-zo/zo-sdk/type-safety.md).

# Type Safety

The SDK is built with TypeScript and provides comprehensive type definitions.

### Interfaces

```typescript
import type {
  IBaseAPI,
  IBaseDataAPI,
  IZLPAPI,
  ISLPAPI,
  IUSDZAPI,
  IBaseMarketValuationInfo,
  IBaseVaultInfo,
  IBaseSymbolInfo,
  IBasePositionInfo,
  IBaseOrderInfo
} from 'zo-sdk'

// All APIs implement their respective interfaces
const zlpAPI: IZLPAPI = SDK.createZLPAPI(network, provider, apiEndpoint, connectionURL)
const slpAPI: ISLPAPI = SDK.createSLPAPI(network, provider, apiEndpoint, connectionURL)
const usdzAPI: IUSDZAPI = SDK.createUSDZAPI(network, provider, apiEndpoint, connectionURL)

// Type-safe data: call data methods directly on the API or via .dataAPI
const marketInfo: IBaseMarketValuationInfo = await zlpAPI.valuateMarket()
const vaultInfo: IBaseVaultInfo = await zlpAPI.getVaultInfo('usdc')
```


---

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