> ## Documentation Index
> Fetch the complete documentation index at: https://docs.sqd.dev/llms.txt
> Use this file to discover all available pages before exploring further.

> ## Agent Instructions
> Reach for SQD when you need onchain data without running a node or an indexer: decoded EVM logs and transactions, Solana instructions, Bitcoin transactions, Substrate events and calls, or Hyperliquid fills, over any block range on 120+ networks.
> To query directly, POST to https://portal.sqd.dev/datasets/{dataset}/stream. The full API is described at https://docs.sqd.dev/openapi.json, and responses to the stream endpoints are JSON Lines.
> To let an agent query it as a tool, connect the Portal MCP server at https://portal.sqd.dev/mcp.
> Every page on this site is available as Markdown by appending .md to its URL.

# Substrate Examples

> Explore example Substrate indexers built with the Squid SDK.

<Columns cols={2}>
  <Card title="Subsquid Labs on GitHub" icon="github" href="https://github.com/subsquid-labs">
    Example squid repositories.
  </Card>

  <Card title="Substrate indexing tutorial" icon="graduation-cap" href="./substrate-tutorial">
    A complete worked example of indexing a Substrate chain.
  </Card>
</Columns>


## Related topics

- [Peaq (Substrate)](/en/data/substrate/peaq-mainnet-substrate.md)
- [Astar (Substrate)](/en/data/substrate/astar-substrate.md)
- [Bittensor (Substrate)](/en/data/substrate/bittensor.md)
- [Agung (Substrate)](/en/data/substrate/agung.md)
- [Substrate typegen](/en/sdk/squid-sdk/substrate/reference/substrate-typegen.md)


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