Cowrie Research

sqd-primary-sources-2026-04-25

4 min read

SQD primary-source snapshot

Fetched: 2026-04-25 UTC

1) Official website

Source: https://sqd.dev/

Selected excerpts from the official site:

The onchain data layer

Blockchain data across 225+ networks — real-time, historical, validated.

Additional signals from the site:

  • The homepage positions SQD as a broad data platform rather than only an indexer SDK
  • Product navigation shows a larger stack including Portal API, SQD Network, SDK, Cloud, and solution pages for analytics, AI agents, wallets/payments, compliance, stablecoins, and RWA

2) Official docs homepage

Source: https://docs.sqd.ai/

Selected excerpts from the docs:

SQD Network is a decentralized query engine optimized for batch extraction of large volumes of data.

This documentation covers the SQD Network itself and the complimentary products developed by SQD: Squid SDK … SQD Cloud … SQD Firehose … ApeWorx SQD plugin

Additional signals from the docs:

  • The docs homepage is the clearest source that SQD spans both a network/query layer and multiple developer products built on top of it
  • The docs also make clear that the platform’s source of truth is docs-first rather than whitepaper-first

3) SQD Network overview

Source: https://docs.sqd.ai/subsquid-network/overview/

Selected excerpts from the docs:

SQD Network is a distributed query engine and data lake that the SQD ecosystem is built around.

There are currently two independent instances of SQD Network: a decentralized permissionless network; a permissioned network ran by Subsquid Labs GmbH.

Additional signals from the docs:

  • This page is especially useful for understanding the project’s actual operating model: public APIs backed by both decentralized and company-run network variants
  • The overview also clarifies that the platform is designed for granular, multi-block, low-cost historical data access rather than traditional node-style RPC usage

4) Squid SDK overview

Source: https://docs.sqd.ai/sdk/overview/

Selected excerpts from the docs:

A squid is an indexing project built with Squid SDK to retrieve and process blockchain data from the SQD Network.

The Squid SDK is a set of open source Typescript libraries that retrieve, decode, transform and persist the data.

Additional signals from the docs:

  • The SDK page confirms that SQD also ships a practical developer toolkit for building batch indexers and APIs
  • The processor/store/typegen breakdown suggests a substantial modular indexing stack rather than a single hosted API

5) Supported chains page

Source: https://sqd.dev/chains

Selected excerpts from the site:

Every chain, fully indexed

Access real-time and historical data across 143 chains and 236 networks.

Additional signals from the site:

  • Supported-network coverage is one of SQD’s clearest competitive claims
  • Official surfaces use different coverage numbers (for example 190+, 200+, 225+, and 236-network style counts), so those figures should be treated as product-surface snapshots rather than a single immutable total

6) AI Agents solution page

Source: https://sqd.dev/solutions/ai-agents

Selected excerpts from the site:

Structured on-chain data for autonomous agents

SQD delivers pre-decoded events, typed transaction fields, and structured contract interactions as clean JSON over a REST API

Additional signals from the site:

  • This page is a useful long-tail signal that SQD is actively packaging its data products for agentic and LLM-native workflows
  • The metadata/description also points to pre-built skills and an MCP server, which suggests a growing AI-tooling/control-plane layer around the data stack

7) Official GitHub organization

Source: https://github.com/subsquid

Selected excerpts/signals from the public org page:

The main repo of the squid SDK

Data processing part of Subsquid Network

Repository for keeping specs and RFC for subsquid

Additional signals from the org page:

  • The GitHub organization still uses the older Subsquid branding, which is an important lineage clue when mapping site/docs/repo surfaces together
  • Public repos for the SDK, network, portal, contracts, data layer, and specs show a substantial open-source footprint even though the commercial/front-door branding now emphasizes SQD

Notes

  • This pass did not locate a classic whitepaper or litepaper from official SQD sources.
  • The project appears to have expanded from “Subsquid” indexing roots into a broader onchain data platform with multiple product surfaces and solution-specific packaging.
  • SQD appears best categorized as an onchain data layer / indexing / decentralized query infrastructure platform.

Graph View