Overview

Blockdaemon provides fast access to indexed multi-chain data with its REST and streaming APIs, making it unique in the market. The Blockdaemon REST API offers a single integration point for accessing 15 blockchain protocols through node clusters, simplifying interactions with multiple blockchains.

Use Cases

Below are a few use cases of the Blockdaemon REST API.

⚙️ Fee Estimation

Blockdaemon's Fee Estimation feature minimizes the cost and maximizes the efficiency of your blockchain transactions. We provide precise predictions for transaction fees, ensuring you save time and money. This feature is available for Bitcoin, Bitcoin Cash, Ethereum, and Litecoin. For your convenience, each query returns three fee estimates categorized as fast, medium, and slow.

⏰ Real-Time Event Streaming

Stay connected to the pulse of your blockchain operations with our Real-Time Event Streaming. We provide instant updates about transactions, token transfers, and smart contract events. This feature empowers you to respond quickly to market changes and manage your blockchain assets effectively.

👛 Wallet Transactions

Maintain a firm grasp on your blockchain finances with our Wallet Transactions monitoring feature. We offer real-time tracking of wallet activities, enabling you to oversee your financials easily and precisely.

💰 UTXO Balances

Blockdaemon REST API simplifies tracking Unspent Transaction Outputs (UTXO). With this feature, you can efficiently manage your crypto assets by easily tracking transaction inputs and outputs per Bitcoin's UTXO model. We provide this data for any user-defined account address.

🪙 Native Token Balances

With Blockdaemon REST API, checking the balance of a native token across one or multiple addresses is as simple as making a single API call. It provides you with instant and accurate information about your token assets.

⏳ Historical Data

For comprehensive blockchain data analysis, we offer access to historical data for selected blockchain protocols via Blockdaemon REST API. This feature uses custom indexers to deliver rich, in-depth information to guide your strategic decision.

Supported Protocols and Networks

#	Protocol	Network
	Algorand	Mainnet
	Avalanche	Mainnet-c/Testnet-c
	Bitcoin	Mainnet/Testnet/Testnet4
	Bitcoin Cash	Mainnet/Testnet
	Dogecoin	Mainnet/Testnet
	Ethereum	Mainnet/Holesky/Hoodi/Sepolia
	Litecoin	Mainnet/Testnet
	Near	Mainnet
	Optimism	Mainnet
	Polkadot	Mainnet/Westend
	Polygon	Mainnet/Amoy
	Solana	Mainnet/Testnet
	Stellar	Mainnet/Testnet
	Tezos	Mainnet
	Tron	Mainnet/Nile
	XRP	Mainnet

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The table above provides a high-level overview. Please refer to the respective API endpoint page to check the supported protocol.

Supported Protocols of Internal Transactions

The Blockdaemon REST API supports the indexing of EVM smart contract calls for the following protocols:

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Info

The 'Internal Transactions' column refers to support in the Blockdaemon REST API for querying indexed historical internal transactions.