base_transactionStatus

Checks whether a specific transaction is present in the node’s mempool. Use this to confirm that a submitted transaction has been received before it appears in a Flashblock.

Only available on Flashblocks endpoints: https://mainnet.base.org / https://sepolia.base.org.

Requires base/base minimum client version v0.3.0.

Parameters

string

required

The 32-byte transaction hash to query.

Returns

object

Transaction status object.

Show Status fields

string

"Known" if the transaction is present in the mempool. "Unknown" if it has not been seen by this node.

Example

curl https://mainnet.base.org \
  -X POST -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","method":"base_transactionStatus","params":["0xabc123..."],"id":1}'

{"jsonrpc": "2.0", "id": 1, "result": {"status": "Known"}}

{"jsonrpc": "2.0", "id": 1, "result": {"status": "Unknown"}}

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