BitcoinBitcoin API Endpoints

getmempoolinfo

Provides information about the TX memory pool’s current state, including memory usage, transaction count, and relay fee settings.

⚠ This endpoint is only available with Blast access.

Path parameters

apiKeystringRequired

Response

Mempool state information.
loadedboolean
Whether the mempool is fully loaded.
sizeinteger
Number of transactions in the mempool.
bytesinteger
Total size of mempool in bytes.
usageinteger

Total dynamic memory usage for the mempool (in bytes).

total_feedouble
Total fees of all transactions in the mempool in BTC.
maxmempoolinteger
Maximum allowed memory usage for the mempool in bytes.
mempoolminfeedouble

Minimum fee rate for transactions to be accepted into the mempool (in BTC/kvB).

minrelaytxfeedouble

Minimum fee rate for relaying transactions (in BTC/kvB).

incrementalrelayfeedouble

Incremental relay fee rate used for BIP 125 replacement (in BTC/kvB).

unbroadcastcountinteger
Number of transactions waiting for initial broadcast acknowledgement.
fullrbfboolean

Whether full Replace-by-Fee is enabled.