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SQD Network - Access blockchain data through decentralized infrastructure
SQD Network is a distributed query engine and data lake that powers the SQD ecosystem. It serves historical blockchain data for 200+ networks, enabling you to access data at near-zero cost with granular filtering and efficient batch processing.
The Network provides superior data access compared to conventional chain node RPCs through its rich streaming and filtering capabilities, allowing you to query multiple blocks simultaneously.

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How SQD Network Works

Animated diagram of raw blocks flowing from blockchains into the SQD Network data lake and streaming through Portal to your application
The Network stores blockchain data in a distributed data lake, making it available through SQD Portal, a high-performance data access interface that fetches data chunks from multiple worker nodes in parallel. Portal exposes a streaming HTTP API optimized for data extraction at scale. It handles pagination, finality tracking, and reorg compensation automatically, so you can focus on building your application rather than managing infrastructure complexity. You can access the network in three ways:
  1. Use managed Portal endpoints - SQD-hosted endpoints provide instant access to 200+ networks with zero setup
  2. Self-host Portal - Run your own Portal instance alongside your nodes for complete data sovereignty
  3. Use the SDK - Build production indexers with TypeScript SDKs that abstract Portal’s API into a developer-friendly interface
Learn more about Portal and how it transforms blockchain data access in the Portal overview.

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Understand the Network

The Introduction pages explain how the Network components fit together. The existing worker, delegation, and Portal pages remain the source for setup and usage procedures.

Network components

See the roles of ingestion services, the scheduler, workers, Portal, and contracts.

From blocks to chunks

Follow finalized data from a source into chunk storage and worker disks.

How a query is served

Follow one archival request from Portal to workers and back to the client.

How real-time data is served

See how recent blocks move through HotblocksDB and Portal.

Onchain and offchain

Separate token and registration records from the data-serving path.

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Network Options

The Network operates in two configurations, both freely accessible and using the same Portal API:
FeaturePermissionless NetworkPrivate Network
StatusMainnetProduction-ready
InfrastructureFully decentralizedOperated by Subsquid Labs GmbH
ParticipationAnyone can run workers or delegatePermissioned
Networks supportedAlmost all200+ networks
Both networks are free to query. See the complete list of supported networks for gateway URLs and network details.

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Participate in the Permissionless Network

The decentralized network is now in mainnet. Workers and delegators earn rewards. Portal operators lock SQD for query capacity. See Ways to participate for the requirements and lock periods side by side.

Run a Worker Node

Contribute storage and compute resources to the network and earn SQD tokens

Delegate SQD Tokens

Reward high-performing workers and share in their profits

Run a Portal

Lock SQD for query capacity and serve your own application

Network App

Check current returns, worker status, and network economics

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Get Started with SQD Network

Ready to build on the Network? Choose your path:

Portal API

Query blockchain data directly via HTTP API

Build with SDK

Create production indexers with TypeScript SDKs

Browse Networks

View all 200+ supported networks and gateway URLs

Related topics

SQD Network WhitepaperSQD Network componentsSQD FirehoseTron SQD Network APISQD Token Economics