Get wallet balancesLook up what one or more Bitcoin addresses hold, with each address's current balance and everything it has ever received, plus a combined total across all of them. An extended public key (xpub) covers a whole wallet in one row, which is the way to watch every address a wallet has ever generated.
Get an addressLook up one Bitcoin address in full: what it holds, what it has received and sent in total, and its transactions newest first. Page through a long history with the offset the answer hands back for the next run.
Get activity across several addressesTreat a set of addresses as one wallet. Answers with each address's own totals, the combined totals across all of them, and the transactions that touched any of them - so a wallet spread over several addresses reads as one history rather than several.
Get spendable coinsList the coins an address can still spend - the unspent outputs, or UTXOs - with what each is worth and how many confirmations it has. Set a minimum number of confirmations to leave out anything too recent to rely on; six is the usual bar for treating a payment as settled.
Get when an address was first usedFind the date an address first appeared on the blockchain. Useful for telling a long-standing wallet from one created this morning, which is often the first thing worth knowing about an address you did not expect.
Get a transactionLook up one Bitcoin transaction: what it moved, what it paid in fees, where it came from and where it went, and whether it has been confirmed yet or is still waiting. The answer says outright whether it is confirmed and in which block, so a workflow can wait on a payment without reading the transaction itself.
See what a transaction did to an addressGiven a transaction and an address, work out what the one did to the other: whether the address was paid or paid out, and how much. A transaction can have dozens of inputs and outputs, several of them the same address, so this answers the question directly instead of leaving you to add them up.
Get pending transactionsList the transactions broadcast to the network but not yet confirmed in a block - the mempool, newest first. Each one comes with the fee it is offering, which is what decides how soon it is mined.
Count pending transactionsCount the transactions waiting to be confirmed. One number, and the cheapest way to tell whether the Bitcoin network is congested - when the queue is deep, transactions take longer and fees run higher.
Get a blockLook up one block by its hash: when it was mined, how big it is, what the miner collected in fees, and the transactions inside it. A Bitcoin block holds several thousand transactions, so they come back a page at a time rather than all at once.
Get the latest blockGet the block mined most recently: its hash, its height, when it was found and how many transactions it settled. A new one arrives roughly every ten minutes, so this is the way to tell how far the chain has moved.
Find the blocks at a heightFind the block at a given height, and any orphans mined alongside it - occasionally two miners solve the same height at once and only one ends up on the chain. This is the way to turn a block number into a block hash.
List the blocks mined on a dayList every block mined on one calendar day, newest first, with its height, hash and time. Around 144 blocks are mined a day. Useful for daily reporting, and for finding the range of block heights a date covers.
Get network statisticsA snapshot of the whole Bitcoin network right now: the market price, the total mined so far, the hash rate, the mining difficulty and when it next changes, how many blocks and transactions there have been in the last day, and the average time between blocks - each in the units people actually quote.
Get the mining pool splitSee which mining pools found the recent blocks and what share each one took, ordered largest first, over a window of up to ten days.
Get a chartGet the data behind any of the charts on blockchain.com as a list of dated points: the bitcoin price, the hash rate, the difficulty, the fees, how many transactions a day, how big the mempool is, and twenty-two more. Pick the series and the time range, and optionally smooth it with a rolling average.
Get the bitcoin priceGet what one bitcoin is worth, averaged across the major exchanges, in any of the thirty currencies Blockchain.com quotes - with the buy and sell sides and a 15-minute-delayed figure beside it.
Convert money to bitcoinWork out how much bitcoin an amount of money buys at Blockchain.com's current rate. Answers in bitcoin and in satoshi. This is a rate lookup: nothing is bought, sold or moved.
Convert bitcoin to moneyWork out what an amount of bitcoin is worth at Blockchain.com's current rate. Give the amount in bitcoin rather than satoshi. This is a rate lookup: nothing is bought, sold or moved.
Get the block rewardGet the bitcoin a miner currently earns for finding a block. This is the subsidy, which halves roughly every four years - it was 50 BTC in 2009 - and does not include the transaction fees in the block.
