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About SQD
SQD (previously Subsquid AI) provides open-source infrastructure to index, process, and deliver blockchain data for AI and decentralized applications. It enables developers to build custom APIs and datasets using modular pipelines.
SQD, short for Subsquid, is a revolutionary decentralized data infrastructure platform designed to meet the needs of the Autonomous AI Era. Positioned as the first emergent and open database network for AI agents, SQD enables permissionless access to massive volumes of Web3 data across dozens of blockchains. The network supports real-time, high-throughput data access that AI agents, developers, and enterprises need to operate autonomously and intelligently.
Powered by the $SQD token, the platform incentivizes a robust ecosystem of data providers, node operators, and developers to contribute and consume petabytes of structured blockchain data. With support from partners like NVIDIA and OpenAI, and recent acquisition by Rezolve AI, SQD is rapidly shaping the foundation of data infrastructure for a new generation of decentralized, intelligent applications.
SQD is a modular, decentralized data lake optimized for AI agents and Web3 applications. Originally launched as Subsquid, the project was built to solve a growing pain point in the blockchain industry: fast, scalable, and cost-efficient access to large-scale on-chain data. Over the years, it has matured into one of the most widely adopted indexing solutions in the Substrate and EVM ecosystems, and now spans dozens of L1 and L2 networks, including Ethereum, Solana, Arbitrum, Polygon, and zkSync.
Unlike centralized data warehouses or isolated oracles, SQD runs a globally distributed network of permissionless indexers and nodes. This infrastructure supports the real-time data needs of AI agents — digital entities that must self-manage and operate without human oversight. Each data request is served through a decentralized network, ensuring reliability, privacy, and censorship resistance. With more than 2478 active workers and nearly 1PB served in the past 90 days, SQD has demonstrated operational scalability in production.
The system supports light indexers and SQL-style queries, reducing infrastructure overhead for developers. Whether you're building DeFi dashboards, cross-chain indexers, or AI-driven dApps, SQD enables developers to spin up custom data pipelines effortlessly using its Squid SDK and SQD Cloud hosted services. The team has also introduced a grant program for AI Agent development, signaling strong support for innovation in autonomous software.
Supported chains include high-traffic ecosystems like Binance Smart Chain, Avalanche, Celo, Polkadot, Starknet, Fuel, Blast, Berachain, and more. Developers and data analysts can now permissionlessly access structured blockchain data, filtered by network, block range, and entity type — all powered by decentralized compute and incentivized participation.
Competitors in the broader blockchain data space include The Graph, Chainstack, and Fluidity, but SQD stands out for its AI-native focus, its support for petabyte-scale indexing, and its permissionless architecture. Now, under the umbrella of Rezolve AI, SQD is accelerating its push into the future of open data infrastructure.
SQD delivers powerful benefits and features that make it essential for developers, AI builders, and data-centric dApps:
- AI-Ready Data Infrastructure: Built for the era of autonomous software, SQD allows billions of AI agents to independently access structured Web3 data at scale.
- Permissionless Access: Anyone can query and consume indexed blockchain data — human, machine, or AI — using the $SQD token for on-demand data reads.
- Multi-Chain Compatibility: Native support for over 50+ chains including Ethereum, Solana, Polkadot, zkSync, Optimism, Blast, and more.
- Open Source SDK and Tools: Use the Squid SDK and example indexers to quickly build custom indexing pipelines and launch dApps on SQD.
- Scalable & Decentralized: Thousands of worker nodes, 250M+ SQD staked, and over 3.9 million daily requests show proven scalability and adoption.
- Grant Program: Builders can apply for AI development grants powered by SQD and Scade.pro (backed by Nvidia and OpenAI).
- Hosted Indexing & Node Delegation: Use SQD Cloud for managed services or delegate SQD to earn rewards in the network.
SQD offers a seamless and developer-friendly approach to tapping into petabyte-scale blockchain data. Here’s how to get started with SQD:
- Visit the Official Site: Go to sqd.ai and click “Join Network” to start exploring the ecosystem.
- Read the Documentation: The official docs provide guides for indexing EVM, Substrate, Solana, Starknet, Tron, and more.
- Install Squid SDK: Use the Squid SDK to write your own indexers. Example templates are available for fast development.
- Query Indexed Data: Leverage SQD’s hosted GraphQL APIs or deploy your own endpoint to retrieve on-chain data in real-time.
- Run a Node: Become a contributor to the decentralized network by running a node and earning incentives via $SQD.
- Stake & Delegate: Holders can stake or delegate $SQD to help secure the network and earn rewards.
- Apply for a Grant: Builders can apply for an upcoming AI grant program to support the development of new autonomous agents powered by SQD.
SQD FAQ
SQD is purpose-built to meet the demands of autonomous AI agents that need permissionless, high-throughput access to real-time blockchain data. Its decentralized architecture allows AI systems to self-manage data access without relying on centralized APIs or intermediaries. With petabytes of indexed data and low-latency query infrastructure, SQD enables agents to interact with onchain information at scale, making decisions in real time without human input.
The $SQD token is central to the SQD ecosystem. It is used to incentivize data providers, indexers, and node operators for serving data, and it enables users — whether human or AI — to pay for data access. Additionally, $SQD can be staked or delegated to secure the network, making it both a utility and governance asset. As demand for AI-driven data grows, the token facilitates a sustainable, decentralized economy. Learn more at sqd.ai.
Yes, SQD provides developers with the Squid SDK, which makes it easy to create and deploy custom blockchain indexers. These indexers can pull data from supported chains like Ethereum, Solana, and Polkadot, and expose it through APIs or local databases. Hosted indexing options are also available through SQD Cloud. Developers can follow tutorials in the official documentation to get started.
SQD is not an oracle — it’s a decentralized data lake and indexing network. While oracles like Chainlink deliver off-chain data to smart contracts, SQD focuses on organizing and delivering onchain data to users and AI agents in a structured, queryable format. It supports large-scale historical data, permissionless querying, and decentralized node operations, making it more akin to a next-gen database than a data feed. Explore more at sqd.ai.
Absolutely. Even non-developers can participate by running a node, delegating $SQD, or joining the community. Node operators help serve data and earn rewards, while delegators support the network's security and scalability. SQD’s grant and ambassador programs also offer non-technical contributors a chance to get involved.
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