Block Explorer

Explore Your Blockchain with an API-Enabled Block Explorer

When building blockchain networks and applications you need to be able to explore the chain. With Kaleido's block explorer you can easily gain insights by exploring block data in real-time.
What it is

Block Explorer

A block explorer is a tool used to view and search the blocks, transactions, and balances within a blockchain. It works like a search engine for a blockchain network.

For an enterprise business, it enables transparency and verification. Companies can use block explorers to track transactions, verify the status of payments, and audit financial records, all in real time. This accessibility to information enhances trust and fuels business reporting in operations tied to blockchain-backed applications.

Fully Transparent Dashboard

Block Explorer allows you to view on-chain activities by easily browsing blocks, transactions, smart contracts, gas rates, gas consumption and more in your environment.

Customized Data Views

Leverage the intuitive ledger API to create customized views of data on the chain. Drill down into block detail and extract patterns from relevant subsets of information.

Source Code Verification

Integrated source code verification feature to turn indecipherable byte code of a smart contract into plain text that can be verified by a counterparty prior to the issuance of a transaction or query.

How it Works

A block explorer functions as an online interface that accesses and displays information from a blockchain. It connects to a blockchain network's node, retrieving detailed data about blocks, transactions, and wallet addresses. Users can search for specific transactions, addresses, or blocks, and the explorer presents this information in an understandable format.

A block explorer allows users to view the status of transactions, contents of individual blocks, and the balance of specific addresses. This is essential for tracking and verifying transactions on the blockchain. By transforming complex raw data into an easily navigable interface, a block explorer provides insight into the operations and history of a blockchain network.

The Kaleido Block Explorer is an environment-specific console that provides realtime and historical snapshots of the blockchain. It can be leveraged for both high-level analytics (e.g. chain height, commonly called contracts, transaction rate, etc.) and more granular insights (e.g. block contents, transaction hashes, sending accounts, etc.).

Search Bar

Use the search bar to jump directly to a specific subset of the ledger. The search bar accepts three valid inputs:

  • Block Number: The number of the desired block for inspection. For example, enter 0 to see the contents of the chain’s genesis block. Bear in mind that the Kaleido consensus mechanisms may cut blocks regardless of transaction presence (PoA and IBFT output multiple blocks in a minute). As a result, if you are operating in an environment with low transaction throughput and running PoA or IBFT consensus, a large allotment of blocks will be devoid of transactions.
  • Contract Address: callable address of an Ethereum smart contract deployed within the environment.
  • Transaction Hash: The ID of a specific transaction. A transaction implies that byte code has been executed by the EVM. These include deployments of smart contracts and subsequent invocations.


By default, the Block Explorer home screen displays the 25 most recent blocks on the chain. As mentioned above, blocks are minted in accordance with the consensus protocol’s system configuration and do not necessarily contain transactions. Click the block number to see the contents of a specific block. 


Transactions are listed chronologically with the most recent transaction at the top of the list. The transaction table exposes truncated values for transaction hash and the sending account. Additionally, if the transaction is a smart contract deployment, it is denoted with a 'New Contract Created' tag.

Why Kaleido

Everything You Need to Build Enterprise-Grade Blockchain Networks

Kaleido's blockchain platform makes it radically simple for businesses to create complete web3 networks and applications. With just a few clicks, you can launch a blockchain network, deploy it globally, set up governance, and start plugging in familiar services.

Quickly Launch Blockchain

Launch blockchain networks in minutes
Choose from leading protocols
Select permissioned chains, appchains, sidechains, or consortium chains
Deploy on AWS, Azure or on-prem
Stand up nodes worldwide in regions of your choice

Simplify Development to Get to
Production Fast

Access 40+ plug-and-play services for wallets, key management, storage, data, and more
Automate management and deployment with our fully API-enabled platform
Turn any smart contract into familiar APIs with our smart contract API generator
Make digital assets, NFTs, and consortia easy with our dedicated solutions
Mint, manage, and burn tokens at scale with robust tooling

All Backed by Enterprise-Grade Infrastructure and Support

Modern cloud scale architecture
Built-in high availability and disaster recovery
ISO 27k and SOC 2 Type 2 compliant
Integrate seamlessly with existing internal systems
Open source tech and no vendor lockin
24x7 support and SLAs
Additional Resources
Learn More About Kaleido Block Explorers

Common Questions about Block Explorers

What is a block explorer?

A block explorer is a tool that makes it possible to see realtime and historical blockchain data. Block explorers can be leveraged for both high-level analytics on things like chain height, transaction throughput, and smart contract usage, as well as granular insights into things like block contents, specific transactions, and transacting addresses. This makes block explorers a useful tool for monitoring and analyzing blockchains.

How do block explorers work?

Block explorers work by connecting to a specific blockchain and downloading a copy of the blockchain's transaction and block data. The block explorer then indexes this data and makes it searchable and easily accessible to users through a web interface.

When a transaction is made on a blockchain, it is broadcast to the network and included in a block along with other transactions. Each block is then added to the end of the blockchain in a linear, chronological order. The block explorer maintains a copy of the entire blockchain, which allows it to display the transaction and block data to users in real-time as new blocks are added.

Block explorers use various techniques to keep their copy of the blockchain up to date, such as using APIs provided by the blockchain network or subscribing to transaction and block data feeds. Some block explorers also allow users to query the blockchain using specialized search tools, such as by searching for a specific transaction or block by its hash or by looking up the balance of a particular address on the blockchain.

Who uses block explorers?

Block explorers are used by a wide variety of people, including:

  1. Blockchain developers: developers who are working on building applications or services on top of a blockchain use block explorers to monitor their application's performance.
  2. Blockchain users: individual users of blockchain networks use block explorers to track the movement of their tokens and verify the status of their transactions.
  3. Blockchain network administrators: network administrators use block explorers to track the usage of their blockchain network, analyzing trends and highlighting issues.

Ready to get started with the block explorer?

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