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Get mempool transactions

Retrieves all transactions that have been recently broadcast to the mempool. These are pending transactions awaiting confirmation.

If you need to monitor new transactions, we highly recommend subscribing to WebSockets or Socket.io for real-time updates.

Query Parameters

sender_address

string

Filter to only return transactions with this sender address.

recipient_address

string

Filter to only return transactions with this recipient address (only applicable for STX transfer tx types).

address

string

Filter to only return transactions with this address as the sender or recipient (recipient only applicable for STX transfer tx types).

order_by

string

Possible values: [age, size, fee]

Option to sort results by transaction age, size, or fee rate.

order

string

Possible values: [asc, desc]

Option to sort results in ascending or descending order.

limit

integer

Possible values: value ≤ 50

max number of mempool transactions to fetch

offset

integer

index of first mempool transaction to fetch

unanchored

boolean

Include transaction data from unanchored (i.e. unconfirmed) microblocks

Responses

200

List of mempool transactions

Schema

OPTIONAL

limit

integer

offset

integer

total

integer

results

object[]