Chains API

The blocks in a rollup settlement batch

Every rollup block one settlement batch carries, newest first, 50 per page: number, hash, timestamp, transaction count, gas and base fee.

GET/api/external/chain-analysis/rollup-batch-blocks/{chain}

Get a free API key Try it in the API reference

What it returns

Every rollup block in one settlement batch, newest first, 50 per page. A batch is one contiguous block range, so the walk ends at the batch's first block; keep passing nextCursor back as cursor until it is null. Where the batch stands on the parent chain, and its block range and transaction count, are in rollup-settlement. A batch that does not exist or is not indexed yet is a 404 (OP batch numbers skip values, so some OP numbers never exist).

Chains

Robinhood Chain RHC
Optimism OP
Scroll SCROLL

Request

Send your key in the x-dex-data-key header. Replace each <placeholder> with a real value.

curl -H "x-dex-data-key: $DEXDATA_API_KEY" \
  "https://api.dexdata.io/api/external/chain-analysis/rollup-batch-blocks/RHC"

Parameters
Parameter	Description
`batch` query · integer · optional	The settlement batch number. Required.
`cursor` query · string · optional	An opaque cursor from a previous response's `nextCursor`, for the next page. It only pages the chain and batch it was issued for; an empty one, or one over 256 characters, is a 400 (enforced after the API-key gate).
`chain` path · string · required	RHC, OP or SCROLL; every other chain returns 400.

Response fields

A JSON response. Every field is always present; null means the value could not be established, never zero.

Response fields of The blocks in a rollup settlement batch
Field	Type	Description
`batch`	integer	The batch asked about.
`blocks`	object[]	Newest first, one contiguous run of block numbers. Never empty.
`blocks[].number`	integer	The block number.
`blocks[].hash`	string	The block hash.
`blocks[].parentHash`	string \| null	The previous block's hash; `null` when not known.
`blocks[].timestamp`	integer \| null	Unix seconds the block was produced at; `null` when not known.
`blocks[].transactionCount`	integer \| null	Transactions in the block, system transactions included; `null` when not known.
`blocks[].gasUsed`	string \| null	Gas used, as a decimal string; `null` when not known.
`blocks[].gasLimit`	string \| null	The block gas limit, as a decimal string; `null` when not known.
`blocks[].baseFeePerGasWei`	string \| null	The base fee per gas in wei, as a decimal string; `null` when not known.
`blocks[].miner`	string \| null	The address the block names as its producer, lowercase; `null` when not known.
`nextCursor`	string \| null	Pass back as `cursor` for the next page. `null` on the last page.

Price per call

Robinhood Chain, Optimism, Scroll: 1 credit

Charged only when the call succeeds. Prices as of 2026-10-30; the current ones are always in the API reference.

Rollup batch settlement
The batch's standing on the parent chain and its block range.
The transactions in a rollup settlement batch
The transactions the same batch carries.
A block's transactions
One listed block's transactions.
How far an L2's settlement on its parent chain has come
The blocks one of the counted batches carries.
The dispute games an OP-Stack chain settles its state with, newest first
An OP-Stack L2's fault-proof dispute games, newest first, 50 per page: the L2 block each one claims, when it was created and resolved, and whether the claim held.
A block's internal calls
Every internal call one block executed — calls, delegatecalls, creates and self-destructs, with value, gas and whether each reverted — in execution order, a page at a time. RHC, ETH, OP and SCROLL.

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