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

# Data indexers

> Data indexers for querying Arc blockchain data through APIs, sub-graphs, and real-time streams.

Data indexers make it easy to query and analyze onchain data from Arc. They
provide APIs and SDKs for tracking smart contract events, balances, and
historical state changes without running your own indexing infrastructure.

## Providers

### [Envio](https://envio.dev)

Developer-first indexing framework for event-driven data and GraphQL APIs on
Arc.

* [**HyperIndex**](https://envio.dev/#hyperindex): Build production-ready APIs
  from Arc data in minutes.
* Stream live blockchain events with minimal latency.

### [Goldsky](https://goldsky.com)

Managed subgraph and data pipeline platform for Arc contracts.

* [**Subgraphs**](https://goldsky.com/products/subgraphs): Autoscaling query
  engine with 99.9%+ uptime and up to 6x faster performance.
* [**Mirror**](https://goldsky.com/products/mirror): Stream onchain data to your
  database with sub-second latency.

### [The Graph](https://thegraph.com)

Decentralized indexing protocol for querying Arc's onchain data through APIs.

* [**Subgraphs**](https://thegraph.com/docs/en/developing/creating-a-subgraph/):
  Query smart contract data through multiple independent indexers for
  redundancy.
* [**Graph Explorer**](https://thegraph.com/explorer): Discover and reuse
  subgraphs published by other developers.

### [Thirdweb](https://thirdweb.com)

Open-source blockchain data tooling.

* [**Insight**](https://insight.thirdweb.com/reference): Retrieve Arc blockchain
  data, enrich it with metadata, and transform it using custom logic.