# blocksFromHeight

**Type:** GraphQL queries

**Description:**
Retrieve blocks from one or more chains based on their block height range.

In Kadena, **height** represents a block’s sequential position within its chain, starting at 0 for the genesis block and increasing by 1 for each new block.
This query lets you fetch blocks by specifying a starting height (`startHeight`) and, optionally, an ending height (`endHeight`).
It is particularly useful when you want to retrieve a continuous range of blocks — for example, when backfilling data, syncing from a specific point in the chain, or analyzing block activity over a known range.

If `endHeight` is omitted, the query returns all blocks from the starting height up to the current chain tip.

## Arguments
- chainIds (String): The chain IDs to retrieve blocks from.
Kadena runs multiple braided chains in parallel — specify one or more chain IDs here.
- endHeight (Int): The inclusive upper bound of the height range.
If omitted, results will include all blocks from `startHeight` to the current tip.
- startHeight (Int): The inclusive lower bound of the height range.
Blocks with a height below this value will be excluded.
- after (String): Cursor to start paginating **after** a specific result.
Used for forward pagination.
- before (String): Cursor to start paginating **before** a specific result.
Used for backward pagination.
- first (Int): Maximum number of records to return when paginating forward.
- last (Int): Maximum number of records to return when paginating backward.

## Response
**Type:** QueryBlocksFromHeightConnection
**Description:**
undefined

### Fields
- edges (QueryBlocksFromHeightConnectionEdge)
- pageInfo (PageInfo)
- totalCount (Int)