Elysium

All Blocksets go to heaven

Chain Support Status

• 😁 Bitcoin Mainnet - Working with BlockChair backend
• 😁 Bitcoin Testnet - Working with BlockChair backend
• 😁 Bitcoin Cash Mainnet - Working with BlockChair backend
• 😁 Litecoin Mainnet - Working with BlockChair backend
• 😁 Dogecoin Mainnet - Working with BlockChair backend
• 😁 Ethereum Mainnet - Mostly working via Etherscan. Correct token balances, correct number of transactions, incorrect ETH balance because of fee calculation issue.
• 😁 Ripple Mainnet - Working with public APIs
• 😁 Tezos Mainnet - Workign with public APIs
• 🙅 Hedera Mainnet - Might not be possible

Usage & Setup

You need to have pyenv installed. Once that is installed and correctly set up in your environment, follow the script below.

# set up environment
pyenv install 3.10.0
git clone [email protected]:blockset-corp/elysium.git
cd elysium
python -mvenv .venv
source .venv/bin/activate

# install dependencies
pip install -r requirements.txt

# populate environment
export BLOCKCYPHER_TOKEN="<TOKEN HERE>"
export ETHERSCAN_TOKEN="<TOKEN HERE>"

# run it
uvicorn elysium:app --reload

Evaluation of Backend Providers

BlockCypher - for Bitcoin-alikes

• 👍 Returns correct data for BTC, DOGE, LTC
• 👎 No BCH support
• 👎 Only query a single address at a time
• 👎 Extremely low rate limits (max of 15k req/hr on their highest plan = $2600/mo)

Etherscan - for Ethereum

• 👍 Returns correct data for ETH, and ERC-20
• 👍 Industry standard data source
• 👎 Slow
• 👎 Frequent downtime

Amberdata - for Bitcoin-alikes

• 🚫 Doesn't return raw transaction data (though it says they do, nothing is returned) A support ticket has been submitted.
• 👍 Returns correct data for BTC, BCH, LTC
• 👎 No DOGE support

Blockchair - for Bitcoin-alikes

• 👎 Individual address queries
• 👎 Further, have to request each transaction individually as address endpoints only return txids
• 👎 Expensive

Blockdemon - for Bitcoin-alikes

• 🚫 Can't return raw transaction data

CryptoAPIs - for Bitcoin-alikes

• 🚫 Can't return raw transaction data (though they claim "raw" data acceess is possible - not sure if this means the same thing as when we say raw transaction bytes)

Bloq - for Bitcoin-alikes

• 🚫 Can't return raw transaction data

blockbook - for Bitcoin-alikes

• 👍 Returns correct data for BTC, BCH, LTC, DOGE
• 👎 Have to host your own, as the public API limits to .5req/s