Blockchain Data API

For the full site, please visit here https://www.blockchain.com/api/blockchain_api.

Single Block
https://blockchain.info/rawblock/$block_hash
You can also request the block to return in binary form (Hex encoded) using ?format=hex

Single Transaction
https://blockchain.info/rawtx/$tx_hash
You can also request the transaction to return in binary form (Hex encoded) using ?format=hex

Chart Data
https://blockchain.info/charts/$chart-type?format=json

Block Height
https://blockchain.info/block-height/$block_height?format=json

Single Address
https://blockchain.info/rawaddr/$bitcoin_address
The address can be base58 or hash160
Optional limit parameter to show n transactions e.g. &limit=50 (Default: 50, Max: 50)
Optional offset parameter to skip the first n transactions, e.g., &offset=100 (Page 2 for limit 50)

Multi Address
https://blockchain.info/multiaddr?active=$address|$address
Multiple addresses divided by |
The address can be base58 or xpub
Optional limit parameter to show n transactions e.g. &n=50 (Default: 50, Max: 100)
Optional offset parameter to skip the first n transactions e.g., &offset=100 (Page 2 for limit 50)

Unspent outputs
https://blockchain.info/unspent?active=$address
Multiple Addresses Allowed separated by “|.”
The address can be base58 or xpub
Optional limit parameter to show n transactions e.g. &limit=50 (Default: 250, Max: 1000)
Optional confirmations parameter to limit the minimum confirmations, e.g., &confirmations=6
The tx hash is in reverse byte order. This means getting the html transaction hash from the JSON tx hash for the following transaction; you need to decode the hex (using this site, for example). This will produce a binary output, which you need to reverse (the last 8bits/1byte move to the front, second to last 8bits/1byte needs to be moved to second, etc.). Then once the reversed bytes are decoded, you will get the html transaction hash.

Balance
https://blockchain.info/balance?active=$address
Multiple Addresses Allowed separated by “|.”
The address can be base58 or xpub
List the balance summary of each address listed.

Latest Block
https://blockchain.info/latestblock

Unconfirmed Transactions
https://blockchain.info/unconfirmed-transactions?format=json

Blocks
Blocks for one day: https://blockchain.info/blocks/$time_in_milliseconds?format=json
Blocks for specific pool: https://blockchain.info/blocks/$pool_name?format=json