Crypto.com Developer Platform Client.py

The Crypto.com Developer Platform Client.py is a Python SDK for integrating with the Crypto.com Developer Platform Service API. It simplifies access to blockchain features across the Cronos ecosystem (Cronos EVM & Cronos ZK EVM), covering native & ERC20 tokens, smart contracts, DeFi, wallets, transactions, and more.

Features

• Blockchain interaction for Cronos EVM & ZK EVM chains
• Native and ERC20/ERC721 token operations
• Smart contract ABI & bytecode querying
• Cronos ID forward/reverse resolution
• Transactions, blocks, and fee utilities
• DeFi protocols: farms, tokens
• Exchange ticker data

Installation

pip install crypto-com-developer-platform-client

Initialize the Client

First, initialize the client with your API key. To get an API Key, please create an account and a project at https://developer.crypto.com.

from crypto_com_developer_platform_client import Client
from crypto_com_developer_platform_client.interfaces.chain_interfaces import CronosZkEvm

Client.init(
    api_key="YOUR_EXPLORER_API_KEY",
    provider="https://your-provider.com"  # Optional
)

Wallet

from crypto_com_developer_platform_client import Wallet

wallet = Wallet.create()
print(wallet)

balance = Wallet.get_balance("0xYourWalletAddress")
print(balance)

Token

from crypto_com_developer_platform_client import Token

native_balance = Token.get_native_balance("0xYourWalletAddress")
print(native_balance)

erc20_balance = Token.get_erc20_balance("0xYourWallet", "0xTokenContract")
print(erc20_balance)

result = Token.transfer_token("0xRecipient", 10)
print(result)

wrap = Token.wrap_token("0xFromContract", "0xToContract", "0xReceiver", 5)
print(wrap)

swap = Token.swap_token("0xFrom", "0xTo", "0xReceiver", 3)
print(swap)

Transaction

from crypto_com_developer_platform_client import Transaction

transactions = Transaction.get_transactions_by_address("0xAddress", session="", limit="10")
print(transactions)

tx = Transaction.get_transaction_by_hash("0xTxHash")
print(tx)

status = Transaction.get_transaction_status("0xTxHash")
print(status)

count = Transaction.get_transaction_count("0xWallet")
print(count)

gas_price = Transaction.get_gas_price()
print(gas_price)

fee = Transaction.get_fee_data()
print(fee)

estimate = Transaction.estimate_gas({
    "from": "0xFromAddress",
    "to": "0xToAddress",
    "value": "0xAmountInHex"
})
print(estimate)

Contract

from crypto_com_developer_platform_client import Contract

abi = Contract.get_contract_abi("0xContractAddress", "ExplorerAPIKey")
print(abi)

bytecode = Contract.get_contract_code("0xContractAddress")
print(bytecode)

Block

from crypto_com_developer_platform_client import Block

current = Block.get_current_block()
print(current)

block = Block.get_by_tag("latest", tx_detail="true")
print(block)

Cronos ID

from crypto_com_developer_platform_client import CronosId

resolved = CronosId.forward_resolve("alice.cro")
print(resolved)

reverse = CronosId.reverse_resolve("0xAddress")
print(reverse)

DeFi

from crypto_com_developer_platform_client import Defi
from crypto_com_developer_platform_client.interfaces.defi_interfaces import DefiProtocol

tokens = Defi.get_whitelisted_tokens(DefiProtocol.H2)
print(tokens)

farms = Defi.get_all_farms(DefiProtocol.VVS)
print(farms)

farm = Defi.get_farm_by_symbol(DefiProtocol.H2, "zkCRO-MOON")
print(farm)

Exchange

from crypto_com_developer_platform_client import Exchange

tickers = Exchange.get_all_tickers()
print(tickers)

ticker = Exchange.get_ticker_by_instrument("BTC_USDT")
print(ticker)

API

Client

• Client.init(api_key, chain_id, provider=None): Initialize the SDK with API key, chain, and optional provider.

Wallet

• Wallet.create(): Creates a new wallet.
• Wallet.get_balance(address): Returns the native token balance for a given wallet address.

Token

• Token.get_native_balance(address): Fetches native token balance.
• Token.get_erc20_balance(address, contract_address, block_height='latest'): Fetches ERC20 token balance.
• Token.transfer_token(to, amount): Transfers tokens.
• Token.wrap_token(from_contract_address, to_contract_address, to, amount): Wraps tokens.
• Token.swap_token(from_contract_address, to_contract_address, to, amount): Swaps tokens.

Transaction

• Transaction.get_transactions_by_address(address, session='', limit='20'): Returns transaction list for address.
• Transaction.get_transaction_by_hash(tx_hash): Returns a transaction by hash.
• Transaction.get_transaction_status(tx_hash): Returns the status of a transaction.
• Transaction.get_transaction_count(address): Returns nonce for a wallet.
• Transaction.get_gas_price(): Returns current gas price.
• Transaction.get_fee_data(): Returns fee-related data.
• Transaction.estimate_gas(payload): Estimates gas for a given transaction payload.

Contract

• Contract.get_contract_abi(contract_address, explorer_key): Fetches contract ABI.
• Contract.get_contract_code(contract_address): Fetches contract bytecode.

Block

• Block.get_current_block(): Returns the latest block.
• Block.get_by_tag(tag, tx_detail=False): Returns a block by tag or number.

CronosId

• CronosId.forward_resolve(cronos_id): Resolves CronosId to address.
• CronosId.reverse_resolve(address): Resolves address to CronosId.

DeFi

• Defi.get_whitelisted_tokens(protocol): Returns list of whitelisted tokens.
• Defi.get_all_farms(protocol): Returns all farms.
• Defi.get_farm_by_symbol(protocol, symbol): Returns specific farm by symbol.

Exchange

• Exchange.get_all_tickers(): Returns all tickers.
• Exchange.get_ticker_by_instrument(instrument_name): Returns specific ticker info.

Supported Chains

The SDK supports both Cronos EVM and Cronos ZK EVM networks.

from crypto_com_developer_platform_client.interfaces.chain_interfaces import CronosEvm, CronosZkEvm

CronosEvm.MAINNET     # Chain ID: 25
CronosEvm.TESTNET     # Chain ID: 338
CronosZkEvm.MAINNET   # Chain ID: 388
CronosZkEvm.TESTNET   # Chain ID: 240

License

This project is licensed under the MIT License.

Contact

If you have any questions or comments about the library, please feel free to open an issue or a pull request on our GitHub repository.