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checkaddy

A simple terminal application for validating and inspecting public cryptocurrency addresses across multiple networks. It performs local format validation and optionally fetches basic address data from public blockchain APIs.

Features

• Local validation for several address formats
• Support for both UTXO and EVM chains
• Fetches balance and transaction metadata from public endpoints
• Terminal UI built with textual
• Optional JSON output for raw data
• Explorer links for quick inspection in a browser

Supported Networks

• Bitcoin (BTC)
• Litecoin (LTC)
• Dogecoin (DOGE)
• Dash (DASH)
• Bitcoin Cash (BCH)
• Ethereum (ETH)
• BNB Chain (BSC)
• Polygon (MATIC)

What it Shows

Depending on the network and API availability:

• Confirmed balance
• Unconfirmed balance
• Total received
• Total sent
• Transaction count
• Data source used for the lookup

Requirements

• Python 3.10+
• requests
• textual

Install dependencies:

pip install requests textual

Running

python run.py

Notes

• Only public wallet addresses are supported.
• Private keys or seed phrases should never be entered.
• Some values may be unavailable depending on the limitations of free API endpoints.

License

This project is licensed under the MIT License. See the LICENSE file for details.

Copyright (c) 2026 zv.