How to Get All Transactions for a BTC Address in Python?

Problem Formulation

Given a single Bitcoin address in the form of a stream of characters such as the address of the first “Genesis” block ever created on the Bitcoin blockchain:

12c6DSiU4Rq3P4ZxziKxzrL5LmMBrzjrJX

How to get all transactions for this BTC address in a Python script?

Solution

To get all transactions of a given Bitcoin address, import the pandas library and call pandas.read_json(url) to create a pandas DataFrame from the JSON object. You can then access the 'txs' column on the DataFrame df using indexing df['txs'] to get a series of all transactions concerning this address.

The following code:

• Imports the pandas library.
• Creates the URL of the Bitcoin address using blockchain.info as a server.
• Converts the JSON object from the server to a DataFrame using pandas.read_json(url).
• Prints the 'txs' column of the DataFrame.

import pandas

your_btc_address = '12c6DSiU4Rq3P4ZxziKxzrL5LmMBrzjrJX' # Genesis Block
transactions_url = 'https://blockchain.info/rawaddr/' + your_btc_address

df = pandas.read_json(transactions_url)
transactions = df['txs']
print(transactions)

The output is a series of transactions:

0     {'hash': '367c89950f2865a2c07feb84def6d9fb061b...
1     {'hash': 'e585ec92476a3e867eb991ec1115788ef684...
2     {'hash': '8241cb1f6a48879fb712b398c6d0e1bba88a...
3     {'hash': 'a0b98914bb4ce5660e1ce3bafd268a0b159a...
4     {'hash': '640b727abd8605031e86fc2a2fa1fe41d607...
                            ...                        
95    {'hash': '9fefa807ab8791b6a4fca5f1d8de1b5fd012...
96    {'hash': '56484b549f42a4485fb79b2838c7829805d0...
97    {'hash': 'ddd78924a1e15ad98b28342987d266e95bad...
98    {'hash': '0cabee6178c031c259609ce33864e5db60f1...
99    {'hash': 'ca0eac93cb73d28872aa2ce644a2f1cfbbe2...
Name: txs, Length: 100, dtype: object

To explore them even further, you can keep using indexing like so:

print(transactions[0])
'''
{'hash': '367c89950f2865a2c07feb84def6d9fb061bb31bee696a2859b9fbbfec657bea', 'ver': 2, 'vin_sz': 1, 'vout_sz': 2, 'size': 225, 'weight': 900, 'fee': 1369, 'relayed_by': '0.0.0.0', 'lock_time': 681784, 'tx_index': 8250102780526455, 'double_spend': False, 'time': 1620083348, 'block_index': 681785, 'block_height': 681785, 'inputs': [{'sequence': 4294967293, 'witness': '', 'script': '47304402206224bce979129a96a531ec1e0be2d26e200ce7573d724ccfd4773623b3b312fb022011bb9bef63ba3653fd3a77be82d92cc05165319197fd98f5ee79afb18d47ef84012102935f179f40dd2c8597456bff4efca7d6917bac69b477c19053e151bb1e47dbd1', 'index': 0, 'prev_out': {'spent': True, 'script': '76a914997e440e1e0b35bdea90488919a727dbc38f64fa88ac', 'spending_outpoints': [{'tx_index': 8250102780526455, 'n': 0}], 'tx_index': 1658202184535850, 'value': 4269, 'addr': '1EzbeTMmTN4U99dP8N8PQuzJmmcAxETPNE', 'n': 0, 'type': 0}}], 'out': [{'type': 0, 'spent': False, 'value': 1000, 'spending_outpoints': [], 'n': 0, 'tx_index': 8250102780526455, 'script': '76a914119b098e2e980a229e139a9ed01a469e518e6f2688ac', 'addr': '12c6DSiU4Rq3P4ZxziKxzrL5LmMBrzjrJX'}, {'type': 0, 'spent': False, 'value': 1900, 'spending_outpoints': [], 'n': 1, 'tx_index': 8250102780526455, 'script': '76a914a63561664bd7d907cc993165bd1fcc22540dee4988ac', 'addr': '1G9q7nTUEDL9kHumqYxXH8uzEGp6i6MYtp'}], 'result': 1000, 'balance': 5034680038}
'''

… and so:

print(transactions[0]['hash'])
# 367c89950f2865a2c07feb84def6d9fb061bb31bee696a2859b9fbbfec657bea

Depending on what you need, you can use this as a starting point for further processing.

If you want to learn more about how to become a cryptofreelancer, check out my free webinar where I share how I created a thriving coding business online—and how you can too!

Chris

While working as a researcher in distributed systems, Dr. Christian Mayer found his love for teaching computer science students.

To help students reach higher levels of Python success, he founded the programming education website Finxter.com. He’s author of the popular programming book Python One-Liners (NoStarch 2020), coauthor of the Coffee Break Python series of self-published books, computer science enthusiast, freelancer, and owner of one of the top 10 largest Python blogs worldwide.

His passions are writing, reading, and coding. But his greatest passion is to serve aspiring coders through Finxter and help them to boost their skills. You can join his free email academy here.