name: subsquid
description: Subsquid (Squid SDK) — batch-based blockchain indexers, EVM/Substrate processors, typegen, GraphQL API.
metadata:
author: hairy
version: "2026.2.9"
source: Generated from https://github.com/subsquid/docs
Skill based on Subsquid docs, generated 2026-02-09. Official docs: https://docs.subsquid.io
Subsquid provides SQD Network (historical blockchain data API) and Squid SDK — a TypeScript toolkit for building batch-based indexers (squids). Squids use processors (EVM or Substrate), stores (Postgres, file, BigQuery), optional typegen for decoding, and optional GraphQL serving.
Core References
| Topic |
Description |
Reference |
| Overview |
Squid SDK architecture — processor, store, typegen, GraphQL; SQD Network |
core-overview |
| EVM Processor |
EvmBatchProcessor — gateway, RPC, addLog, setFields, batch context |
core-evm-processor |
| Schema & TypeORM |
schema.graphql, typeorm-codegen, TypeormDatabase, store API |
core-schema-typeorm |
Features
| Topic |
Description |
Reference |
| EVM Typegen |
squid-evm-typegen — ABI → decoding and state-query facades |
features-evm-typegen |
| CLI |
sqd init, run, deploy; templates and project layout |
features-cli |
| GraphQL |
OpenReader — schema-based GraphQL API from Postgres |
features-graphql |
Best Practices
External Links
By