The fastest, fully-decentralized way to access data from any Ethereum address or smart contract. Providing open source software libraries and tools for developers and accounting / auditing / monitoring  solutions for the rest of us.

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Lightning Fast Data

75-100 times faster than RPC

Immutable data lends itself to caching

Fully Automated

Auto-generated data parsing code

Simply provide your smart contract’s ABI

Better Data

Removes extraneous data

Parsed to your smart contract

Decentralized data

Runs both locally and remotely

Data optionally delivered through IPFS

Live Monitoring

Smart contract monitoring services

Send notifications on abnormal behavior


Detailed analysis of token sales

Per-block accounting


QuickBlocks is well documented


Faster, Richer, Fully Customizable Data from Programmable Blockchains


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Quality Open Source Code

Quality Code

Well designed C++ code from our experienced software engineers

Minimal Maintenance

Automatically generated code from ABI based on immutable smart contracts

Tested Code

Fully tested code with over 1,000 constantly running test cases


QuickBlocks (formerly called Great Hill Corporation) has been providing internet-based software since before the World Wide Web. In 1996, we released the first version of Calendars for the Web™, our popular interactive, web-based calendaring/scheduling system. We’ve been delivering this monthly service for more than 15 years, enabling 1,000s of clients to coordinate shared resources among their many participants.

Our dedication to quality software and customer service is reflected in our long, fruitful relationships with our clients. In early 2016, we pivoted our full attention to the Ethereum blockchain space. We first released EthSlurp™ in March of  2016. Since then we’ve been working on QuickBlocks™.

Contact Us

Do not hesitate to contact us to get info or support

1010 N Hancock St,
Philadelpia, PA 19123

+101 610 519-9413

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