Category: Data indexing / RPC / decentralized data infrastructure / DePIN / AI app framework
Summary: SubQuery is a web3 infrastructure project that started as an open-source blockchain data indexing framework and has expanded into a broader decentralized network offering indexed data, RPC access, and AI-oriented developer tooling. Its first-party materials frame it less as a single indexer product and more as a multi-surface data infrastructure stack spanning open-source SDKs, hosted/decentralized query serving, operator services, and newer AI-app positioning.
What it does:
Provides an open-source data indexing framework (subql) for building custom APIs over blockchain data across Substrate, EVM, Cosmos, Algorand, NEAR, Stellar, Solana, Starknet, and other supported ecosystems
Operates the SubQuery Network, where indexers, consumers, and delegators interact through decentralized infrastructure rather than only a centrally hosted service
Markets RPC and indexed-data access together, suggesting it is trying to become a broader data-access control plane rather than just an indexing SDK
Exposes operator-facing software such as network contracts, the network app, and indexer services, which makes the infrastructure/network layer more concrete than homepage copy alone
Also positions an AI Apps framework and MCP integration as part of the product surface, indicating an attempt to become AI-ready web3 developer infrastructure rather than only a query engine
Key claims:
The homepage says SubQuery’s “flexible DePIN infrastructure network powers the fastest data indexers,” “the most scalable RPCs,” and “leading open source AI models”
The docs say SubQuery is a “fast, flexible, and reliable open-source data decentralised infrastructure network” that provides “both RPC and indexed data to consumers around the world”
The main subql repository describes SubQuery as an “Open, Flexible, Fast and Universal data indexing framework for web3” and documents support across many chain families plus multichain indexing
The official GitHub org shows public repos not just for the SDK but for network contracts, the network app, and indexer services, reinforcing that the network/operator layer is active product surface area
The subql README and docs both expose MCP / AI-app positioning, which is a notable signal that SubQuery is expanding beyond classic blockchain indexing into AI-facing developer tooling
Whitepaper: No classic standalone whitepaper or litepaper was found during this pass. The strongest primary materials were the official site, documentation portal, GitHub organization, and first-party repository READMEs; see ../whitepapers/subquery-primary-sources-2026-04-26.md.