# getMnListDiff

**Usage**: `await client.core.getMnListDiff(baseBlockHash, blockHash, options)`  
**Description**: Allow to fetch a specific block hash from  its height

Parameters:

| parameters        | type              | required | Description                   |
| ----------------- | ----------------- | -------- | ----------------------------- |
| **baseBlockHash** | String            | yes      | hash or height of start block |
| **blockHash**     | String            | yes      | hash or height of end block   |
| **options**       | DAPIClientOptions | no       |                               |

Returns : {Promise<object>} - The Masternode List Diff of the specified period