Starknet Calls Upon SubQuery to Add Data Indexing Support

4 min readJan 23, 2025

We are delighted to announce our support for the Starknet mainnet, where network participants can now take advantage of SubQuery’s leading data indexer.

Starknet’s Growth and Why We’re Excited to Join

Starknet has emerged as a leading Ethereum scaling solution. Powered by ZK-STARKs and the Cairo programming language, Starknet removes the scaling limitations of Ethereum while giving developers the ability to build truly innovative projects ranging from DeFi to full on-chain games.

Its ecosystem is thriving with innovative developers, from DeFi pioneers to gaming and privacy-focused builders, all driven by the limitless potential of ZKPs.

The growth of Starknet has been impressive. The Starknet ecosystem grew in projects by 168%, going from 72 user-centric projects in November 2023 to 193 projects by November 2024.

The developers in Starknet are pioneers — builders drawn to the cutting-edge possibilities that ZK technology enables, working on everything from DeFi protocols and gaming platforms to tooling, AI agents, and privacy-focused applications.

Starknet fits perfectly with our mission to help web3 developers build seamless, secure, and scalable blockchain solutions. The platform’s cutting-edge technology and collaborative community provide the ideal environment for innovation and impact. Beyond this, Starknet isn’t just a scaling solution — it is a launchpad for the future of DApps and we can’t wait to be part of this journey.

“We’re excited to share that developers on Starknet can now use SubQuery’s powerful data indexer to make building and scaling dApps easier than ever. With seamless access to on-chain data, SubQuery helps developers save time and focus on creating innovative decentralised applications. We’re proud to have SubQuery onboard and we look forward to seeing the amazing projects developers will create with this new integration!”

— Henri Lieutaud, Head of Ecosystem, Starknet

SubQuery’s open-source SDK, tools, and extensive documentation offer a comprehensive indexing experience for Starknet developers. SubQuery is open-source and designed to be easy to run, meaning you have the freedom to run your indexer in a variety of ways, including self hosting in your own cloud, or with one of our ecosystem partner hosting services. Additionally, the SubQuery Network indexes and services data to the global community in an incentivised and verifiable way. After publishing your project to the SubQuery Network, anyone can index and host it — providing data to users around the world faster and reliably.

“SubQuery’s powerful indexing is now driving the Starknet ecosystem, offering developers a fast, flexible, and open solution. We’re excited to support Starknet and inspire Web3 builders to create the next generation of innovative decentralised applications.”

— James Bayly, Co-Founder and COO at SubQuery

Why Use SubQuery?

SubQuery makes it easy to build a custom API for your dApp or smart contracts in minutes, providing clean indexed data to any service. The excellent SubQuery developer experience is flexible, with the ability to make external API calls or import external libraries from within your mapping functions, and better controls to run your projects in your own infrastructure with automated DOS (denial of service) mitigation controls.

SubQuery is designed to be fast. This adds up when you’re indexing millions of ledgers, and is something to consider when choosing your indexer. SubQuery achieves this by using mulit-threading and optimisation of the store to reduce costly database writes. With faster sync times, developers can iterate faster and deliver features to market quicker.

Getting Started with SubQuery and Starknet

The best way is to start by following our step-by-step guide using a real-world example project. Follow our quick start tutorial to learn all the features of our Starknet indexer.

We’ve updated the SubQuery Documentation to add Starknet specific information to the general SubQuery documentation.

SubQuery’s Support for Starknet

Advanced indexing of blocks, transactions, and events
An excellent quick start tutorial
An example project
Discord community (including technical support)

About Starknet

Starknet (STRK) is a permissionless, decentralised layer-2 scaling solution for the Ethereum blockchain. It uses zero-knowledge rollup technology, specifically STARK proofs, to validate transactions off-chain and submit them to the Ethereum mainnet, increasing scalability and reducing fees.

About SubQuery

SubQuery Network is innovating in web3 infrastructure with tools that empower builders to decentralise without compromise. SubQuery’s infrastructure network offers everything from data indexers, RPCs and AI agents — all fully decentralised and production ready.

Our fast, flexible, and open data indexer supercharges thousands of dApps on nearly 300 networks. Our Sharded Data Node will provide breakthroughs in the RPC industry and our AI App framework makes building AI apps easier than ever before. We pioneer the web3 revolution for visionaries and forward-thinkers. We’re not just a company — we’re a movement driving an inclusive and decentralised web3 era, together.