Skip to main content
Join the official 2019 Python Developers SurveyStart the survey!

BlockAPI library

Project description


Library to interact with numerous cryptocurrency data APIs to get the basic info about account balance, transactions, staking informations, etc. List of supported coins:

coin API name supported operations
XTZ TzscanAPI balance, transactions, activations, originations, delegations, endorsements, bakings
ATOM CosmosAPI balance, transactions, rewards, delegates, votes
DCR DcrdataAPI balance, transactions
ADA CardanoExplorerAPI balance, transactions
ZEC ChainSoAPI balance, transactions
MercerweissAPI balance
ZchainAPI balance
ETC BlockscoutAPI balance
NEO NeoscanAPI balance, transactions
ZEN ZensystemAPI balance
DASH ChainSoAPI balance, transactions
CryptoIDAPI balance
DOGE ChainSoAPI balance, transactions
BNB BinanceAPI balance,transactions
EOS EosparkAPI balance, transactions
GreymassAPI balance
BCH BtcAPI balance
XLM StellarAPI balance
RVN RavencoinAPI balance
TRX TronscanAPI balance
LTC BlockcypherAPI balance
ChainSoAPI balance, transactions
CryptoIDAPI balance
Ltc1TrezorAPI balance, transactions
BTC BlockchainInfoAPI balance, transactions
BlockonomicsAPI balance, transactions
ChainSoAPI balance, transactions
Btc1TrezorAPI balance, transactions
Btc2TrezorAPI balance, transactions
BitpayAPI balance
GRS CryptoIDAPI balance
ETH EtherscanAPI balance, transactions
EthplorerAPI balance
ONT OntioAPI balance, transactions
VET DigonchainAPI balance
BOS BlockchainosAPI balance, transactions

Getting Started

These instructions will get you a copy of the project up and running on your local machine for development and testing purposes.


Python 3.x, PIP (if you'd like to install it this way).


Library can be installed simply with pip:

pip install blockapi

or by running:

make install

Usage examples

Example usage to get account balance:

import blockapi
myobj = blockapi.api.BlockchainInfoAPI("bitcoin-address-here")

For some coins there are multiple APIs available. With get_random_api_class_for_coin it is possible to randomly pick any of the available APIs:

myapi = blockapi.get_random_api_class_for_coin('BTC')('1F1tAaz5x1HUXrCNLbtMDqcw6o5GNn4xqX')

To directly pick first random working API and ask it for the account balance:

>>> blockapi.get_balance_from_random_api('BTC','16ftSEQ4ctQFDtVZiUBusQUjRrGhM3JYwe')

It is possible to ask for a list of working APIs for a coin. They are automatically checked first if they work (test is done with asking for a balance). Only APIs which pass this check are returned:

>>> blockapi.get_working_apis_for_coin('BTC')
(<class 'blockapi.api.blockchaininfo.BlockchainInfoAPI'>, <class 'blockapi.api.blockonomics.BlockonomicsAPI'>, <class 'blockapi.api.insight.BitpayAPI'>, <class 'blockapi.api.trezor.Btc2TrezorAPI'>, <class 'blockapi.api.trezor.Btc1TrezorAPI'>)

During the API instance creation the supplied address is being checked for validity, if the address is not valid, ValueError exception is being raised:

>>> import blockapi
>>> blockapi.api.CosmosAPI('blahblah')
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/srv/apps/blockapi/src/blockapi/blockapi/", line 195, in __init__
File "/srv/apps/blockapi/src/blockapi/blockapi/", line 201, in check_validity
self.symbol, self.address_info.address
ValueError: Not a valid ATOM address: b'blahblah'

It is possible to display the result of the address validation with included details like validity, network type, address type, or the info whether the supplied address is an extended one. Not for all coins all the details are available though:

>>> import blockapi
>>> myapi = blockapi.api.TzscanAPI('valid tezos address here')
>>> myapi.address_info
ValidationResult(name='tezos', ticker='xtz', address=b'valid tezos-address here', valid=True, network='both', is_extended=False, address_type='originated_account')

Running the tests

To run the included tests simply issue:

make test




  • **Devmons s.r.o. - Initial work - crypkit

See also the list of contributors who participated in this project.


  • **Chris Priest - moneywagon library we took many ideas from - moneywagon
  • **Joe Black - Address validation library - coinaddr


This project is licensed under the MIT License - see the file for details

Project details

Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Files for blockapi, version 0.0.42
Filename, size File type Python version Upload date Hashes
Filename, size blockapi-0.0.42-py3-none-any.whl (41.8 kB) File type Wheel Python version py3 Upload date Hashes View hashes
Filename, size blockapi-0.0.42.tar.gz (26.9 kB) File type Source Python version None Upload date Hashes View hashes

Supported by

Elastic Elastic Search Pingdom Pingdom Monitoring Google Google BigQuery Sentry Sentry Error logging AWS AWS Cloud computing DataDog DataDog Monitoring Fastly Fastly CDN SignalFx SignalFx Supporter DigiCert DigiCert EV certificate StatusPage StatusPage Status page