Chains API

The transactions in a rollup settlement batch

Every rollup transaction one settlement batch carries, newest first, 50 per page: hash, block, position, type, status, sender, recipient, value, fee and gas.

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

Get a free API key Try it in the API reference

What it returns

Every rollup transaction in one settlement batch, newest block first and by position within the block, descending, 50 per page at most. System and deposit transactions are included (every RHC block opens with one at position 0, every OP block with a deposit of type 126), so the rows add up to the batch's transaction count in rollup-settlement. Keep passing nextCursor back as cursor until it is null; the last page can be empty. A batch whose blocks carry no transactions answers an empty list; 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-transactions/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 transactions in a rollup settlement batch
Field	Type	Description
`batch`	integer	The batch asked about.
`transactions`	object[]	Newest block first, then by position, descending.
`transactions[].hash`	string	The transaction hash.
`transactions[].blockNumber`	integer	The rollup block it is in.
`transactions[].index`	integer	Its position in that block.
`transactions[].type`	integer \| null	The transaction type, e.g. `2`; `126` is an OP deposit. `null` when not known.
`transactions[].status`	string \| null	Whether it succeeded; `null` when not known.
`transactions[].from`	string	The sender, lowercase.
`transactions[].to`	string \| null	The recipient, lowercase; `null` when the transaction created a contract.
`transactions[].contractCreated`	string \| null	The contract it created, lowercase; `null` when none.
`transactions[].valueWei`	string \| null	Native value sent, in wei, as a decimal string. `"0"` is a real zero; `null` when not known.
`transactions[].feeWei`	string \| null	What it paid, in wei, as a decimal string; `null` when not known.
`transactions[].gasUsed`	integer \| null	Gas used; `null` when not known.
`transactions[].gasPriceWei`	string \| null	What one unit of gas cost it, in wei, as a decimal string; `null` when not known.
`transactions[].timestamp`	integer \| null	Unix seconds of its block; `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 transaction count.
The blocks in a rollup settlement batch
The blocks the same batch carries.
What one transaction did
One listed transaction in full.
How far an L2's settlement on its parent chain has come
The newest settlement batch number (RHC), the batches committed since launch (SCROLL) or the dispute games created (OP): one exact chain-wide settlement number per L2.
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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