Chains API

Claim a bridge withdrawal on the parent chain

Whether an L2 → parent-chain withdrawal can be claimed yet, and if so the exact parent-chain transaction (contract + calldata with its proof) that claims it. RHC.

GET/api/external/chain-analysis/bridge-withdrawal-claim/{chain}

Get a free API key Try it in the API reference

What it returns

Ask by messageId, the withdrawal's number as bridge-transfers answers it. status is claimable once the withdrawal is confirmed and not yet executed, executed once it has been claimed, unconfirmed while it is still inside its challenge period, and null when no withdrawal has that number. When claimable, claim is the transaction that executes it: send calldata to contract on the parent chain, with no value, from any account. The call carries its own proof and is checked to be the execution of exactly the withdrawal asked for.

Chains

Robinhood Chain RHC

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/bridge-withdrawal-claim/RHC?messageId=<messageId>"

Parameters
Parameter	Description
`messageId` query · integer · required	The withdrawal's number: `messageId` on a `bridge-transfers` withdrawal.
`chain` path · string · required	RHC; 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 Claim a bridge withdrawal on the parent chain
Field	Type	Description
`messageId`	integer	The withdrawal asked about.
`status`	string \| null	`claimable`: confirmed and not executed; `claim` executes it. `executed`: already claimed on the parent chain. `unconfirmed`: still inside its challenge period (or not yet posted to the parent chain). `null`: no withdrawal has this number.
`claim`	object \| null	Set exactly when `status` is `claimable`; `null` otherwise.
`claim.contract`	string	The parent chain's outbox contract to send `calldata` to.
`claim.calldata`	string	The whole call, proof included. Send it with no value.
`claim.sender`	string	The L2 address that sent the withdrawal.
`claim.destination`	string	The parent-chain address the withdrawal calls.
`claim.value`	string	The native value it releases, in wei.
`claim.data`	string	The call it makes on `destination`; `0x` when none.
`claim.l2BlockNumber`	integer	The L2 block that sent it.
`claim.parentBlockNumber`	integer	The parent-chain block the L2 had seen when it was sent.
`claim.initiatedAt`	integer	Unix seconds it was sent on the L2.

Price per call

Robinhood Chain: 1 credit

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

The canonical-bridge deposits and withdrawals of an L2, with their status
Find the withdrawal and its messageId there, then get the call that claims it.
The ERC-4337 smart accounts on a chain, optionally one factory's
The chain's account-abstraction smart accounts by address, 50 per page, optionally only one factory's: factory, deployment, user-operation count and smart-account code.
The recent ERC-4337 bundle transactions on a chain
The chain's account-abstraction bundle transactions, newest first, 50 per page: transaction, block, time, bundler and how many user operations each carried.
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.
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.
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.

Start building with DexData today

Sign in, create a key and make your first call in a minute. Free credits every month, and you only pay for calls that succeed.

Get a free API key