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APIs and services every Ethereum developer should know

Discover the APIs and service that will help you get data and build on top of Ethereum. We selected this services that are free or offer generous free plans and listed them in different categories for you to use. The list was made in no particular order and I already used most of the services […]

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How to access indexed Ethereum data with The Graph

When you’re trying to access Ethereum data generated by smart contracts and dapps on the blockchain you might find it hard to transform the data to a readable format. The Graph is an indexing protocol for querying networks like Ethereum and IPFS. Anyone can build and publish open APIs, called subgraphs, making data easily accessible. […]

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How to decode event logs in Javascript using abi-decoder

In this tutorial we’ll see how to decode and make sense of event logs generated by Ethereum transactions. This tutorial will guide you on getting a transaction receipt and getting the data related to one event in their original types using the abi-decoder library. For this tutorial you’ll need : the ABI of the smart […]

blog data analytics

Explore Ethereum Data with SQL queries on Dune Analytics

This tutorial will teach you how to query onchain data using the amazing Dune Analytics platform. Dune Analytics is the all-in-one destination to query, visualise, share and explore human readable smart contract data. It’s trusted by a lot of awesome companies like Gnosis, Compound and Bancor. For using the platform to make your own queries […]