# Indexing

> How to read and query onchain data — events, The Graph, Dune, Ponder, Multicall3, and WebSocket s…

How to read and query onchain data — events, The Graph, Dune, Ponder, Multicall3, and WebSocket subscriptions. Why you cannot loop through blocks and what to use instead.

- Page: https://ss33.ai/skills/bankrbot/indexing-28770939834
- Publisher: bankrbot
- Category: [Data & Analytics](https://ss33.ai/skills/category/data-and-analytics-m1r3i9) › [Data pipelines & ETL](https://ss33.ai/skills/category/data-and-analytics-m1r3i9/data-pipelines-and-etl-c8rdes)
- Source: https://github.com/bankrbot/skills/blob/1ce9a1c6a6b7c2863f73debd584635cc135bc288/ethskills-indexing/SKILL.md

## Skill

This skill's licence does not allow redistribution, so the store does not serve its text. Get it from the author: https://github.com/bankrbot/skills/blob/1ce9a1c6a6b7c2863f73debd584635cc135bc288/ethskills-indexing/SKILL.md