Esplora Commands

The esplora namespace provides block explorer functionality for querying blocks, transactions, addresses, and fee estimates via the Electrs/Esplora API.

Try It Live

Commands Overview

Block Queries:

• blocks-tip-hash - Get the hash of the latest block
• blocks-tip-height - Get the height of the latest block
• blocks - Get latest blocks
• block-height - Get block hash at a height
• block - Get block details
• block-status - Get block status
• block-txids - Get transaction IDs in a block
• block-header - Get block header
• block-raw - Get raw block data
• block-txid - Get transaction at index in block
• block-txs - Get transactions in a block

Address Queries:

• address - Get address information
• address-txs - Get address transactions
• address-txs-chain - Get confirmed address transactions
• address-txs-mempool - Get mempool transactions for address
• address-utxo - Get UTXOs for an address
• address-prefix - Search addresses by prefix

Transaction Queries:

• tx - Get transaction details
• tx-hex - Get transaction as hex
• tx-raw - Get raw transaction data
• tx-status - Get transaction status
• tx-merkle-proof - Get merkle proof
• tx-merkleblock-proof - Get merkleblock proof
• tx-outspend - Get outpoint spending info
• tx-outspends - Get all output spending info

Broadcasting:

• broadcast - Broadcast a transaction
• post-tx - Post a transaction

Mempool:

• mempool - Get mempool info
• mempool-txids - Get mempool transaction IDs
• mempool-recent - Get recent mempool transactions

Fees:

• fee-estimates - Get fee rate estimates

esplora blocks-tip-height

Get the current blockchain tip height.

alkanes-cli -p mainnet \
  --jsonrpc-url https://mainnet.subfrost.io/v4/jsonrpc \
  esplora blocks-tip-height

Output:

Tip Height: 850123

esplora blocks-tip-hash

Get the hash of the latest block.

alkanes-cli -p mainnet \
  --jsonrpc-url https://mainnet.subfrost.io/v4/jsonrpc \
  esplora blocks-tip-hash

esplora block

Get details for a specific block.

alkanes-cli -p mainnet \
  --jsonrpc-url https://mainnet.subfrost.io/v4/jsonrpc \
  esplora block 840000

Arguments:

• <BLOCK_HASH_OR_HEIGHT> - Block hash or height

esplora block-txids

Get all transaction IDs in a block.

alkanes-cli -p mainnet \
  --jsonrpc-url https://mainnet.subfrost.io/v4/jsonrpc \
  esplora block-txids 840000

esplora address

Get information about a Bitcoin address.

alkanes-cli -p mainnet \
  --jsonrpc-url https://mainnet.subfrost.io/v4/jsonrpc \
  esplora address bc1qm34lsc65zpw79lxes69zkqmk6ee3ewf0j77s3h

Arguments:

• <ADDRESS> - Bitcoin address

esplora address-utxo

Get unspent transaction outputs (UTXOs) for an address.

alkanes-cli -p mainnet \
  --jsonrpc-url https://mainnet.subfrost.io/v4/jsonrpc \
  esplora address-utxo bc1qm34lsc65zpw79lxes69zkqmk6ee3ewf0j77s3h

Arguments:

• <ADDRESS> - Bitcoin address

Example Response:

[
  {
    "txid": "abc123...",
    "vout": 0,
    "value": 10000,
    "status": {
      "confirmed": true,
      "block_height": 840000
    }
  }
]

esplora address-txs

Get transactions for an address.

alkanes-cli -p mainnet \
  --jsonrpc-url https://mainnet.subfrost.io/v4/jsonrpc \
  esplora address-txs bc1qm34lsc65zpw79lxes69zkqmk6ee3ewf0j77s3h

esplora address-txs-mempool

Get unconfirmed (mempool) transactions for an address.

alkanes-cli -p mainnet \
  --jsonrpc-url https://mainnet.subfrost.io/v4/jsonrpc \
  esplora address-txs-mempool bc1qm34lsc65zpw79lxes69zkqmk6ee3ewf0j77s3h

esplora tx

Get transaction details.

alkanes-cli -p mainnet \
  --jsonrpc-url https://mainnet.subfrost.io/v4/jsonrpc \
  esplora tx <TXID>

Arguments:

• <TXID> - Transaction ID

esplora tx-hex

Get transaction as hexadecimal.

alkanes-cli -p mainnet \
  --jsonrpc-url https://mainnet.subfrost.io/v4/jsonrpc \
  esplora tx-hex <TXID>

esplora tx-status

Get transaction confirmation status.

alkanes-cli -p mainnet \
  --jsonrpc-url https://mainnet.subfrost.io/v4/jsonrpc \
  esplora tx-status <TXID>

esplora tx-outspend

Check if a specific output has been spent.

alkanes-cli -p mainnet \
  --jsonrpc-url https://mainnet.subfrost.io/v4/jsonrpc \
  esplora tx-outspend <TXID> <VOUT>

Arguments:

• <TXID> - Transaction ID
• <VOUT> - Output index

esplora fee-estimates

Get current fee rate estimates for different confirmation targets.

alkanes-cli -p mainnet \
  --jsonrpc-url https://mainnet.subfrost.io/v4/jsonrpc \
  esplora fee-estimates

Example Response:

{
  "1": 25.5,
  "3": 20.0,
  "6": 15.2,
  "25": 10.0,
  "144": 5.0,
  "504": 3.0
}

The keys represent confirmation target in blocks, values are fee rates in sat/vB.

esplora broadcast

Broadcast a signed transaction to the network.

alkanes-cli -p mainnet \
  --jsonrpc-url https://mainnet.subfrost.io/v4/jsonrpc \
  esplora broadcast <TX_HEX>

Arguments:

• <TX_HEX> - Signed transaction as hexadecimal

esplora mempool

Get mempool statistics.

alkanes-cli -p mainnet \
  --jsonrpc-url https://mainnet.subfrost.io/v4/jsonrpc \
  esplora mempool

esplora mempool-txids

Get all transaction IDs in the mempool.

alkanes-cli -p mainnet \
  --jsonrpc-url https://mainnet.subfrost.io/v4/jsonrpc \
  esplora mempool-txids

esplora mempool-recent

Get recent mempool transactions.

alkanes-cli -p mainnet \
  --jsonrpc-url https://mainnet.subfrost.io/v4/jsonrpc \
  esplora mempool-recent

JSON-RPC Equivalent

These CLI commands correspond to JSON-RPC methods with the esplora_ prefix:

• esplora address-utxo → esplora_address::utxo
• esplora fee-estimates → esplora_fee-estimates
• esplora blocks-tip-height → esplora_blocks:tip:height

Example JSON-RPC:

{
  "jsonrpc": "2.0",
  "method": "esplora_address::utxo",
  "params": ["bc1qm34lsc65zpw79lxes69zkqmk6ee3ewf0j77s3h"],
  "id": 1
}

Next Steps

• Ord Commands - Ordinals queries
• BRC20-Prog Commands - EVM contract operations
• DataAPI Commands - High-level data queries