GET /mempool

Get mempool backlog statistics.

This method will use 10 Compute Units.

---

Parameters

None.

Returns

Get mempool backlog statistics. Returns an object with:

• count: the number of transactions in the mempool

• vsize: the total size of mempool transactions in virtual bytes

• total_fee: the total fee paid by mempool transactions in satoshis

• fee_histogram: mempool fee-rate distribution histogram

  An array of (feerate, vsize) tuples, where each entry's vsize is the total vsize of transactions paying more than feerate but less than the previous entry's feerate (except for the first entry, which has no upper bound). This matches the format used by the Electrum RPC protocol for mempool.get_fee_histogram.

Example output:

{
  "count": 8134,
  "vsize": 3444604,
  "total_fee":29204625,
  "fee_histogram": [[53.01, 102131], [38.56, 110990], [34.12, 138976], [24.34, 112619], [3.16, 246346], [2.92, 239701], [1.1, 775272]]
}

In this example, there are transactions weighting a total of 102,131 vbytes that are paying more than 53 sat/vB, 110,990 vbytes of transactions paying between 38 and 53 sat/vB, 138,976 vbytes paying between 34 and 38, etc.

mainnet

curl https://mainnet.bitcoin.validationcloud.io/v1/<YOUR_API_KEY>/mempool \
 -X GET

testnet

curl https://testnet.bitcoin.validationcloud.io/v1/<YOUR_API_KEY>/mempool \
 -X GET