> For the complete documentation index, see [llms.txt](https://docs.gravity.xyz/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.gravity.xyz/legacy-alpha-mainnet-l2/the-graph.md).

# Indexers (legacy L2)

{% hint style="danger" %}
**Legacy network — bridge out before November 1, 2026.** Gravity Alpha Mainnet (L2) is being deprecated in favor of [Gravity Mainnet (L1)](/gravity-networks/l1-mainnet.md) and will be unsettled in **December 2026**. Move all assets back to Ethereum before **November 1, 2026** — see [Bridge Assets back to Ethereum](/legacy-alpha-mainnet-l2/bridge-back-to-ethereum.md).
{% endhint %}

> **Legacy.** This page documents The Graph on the legacy **Gravity Alpha Mainnet (L2)** — the `gravity-mainnet` subgraph listed below. It does not apply to Gravity Mainnet (L1).

## Overview

Blockchain indexers are specialized tools or services that extract, process, and organize data from blockchain networks, transforming it into formats that are easily queryable and accessible for developers and applications. Given that blockchain data is inherently decentralized and stored in a sequential manner, retrieving specific information can be challenging. Indexers address this by creating structured databases or APIs, enabling efficient data retrieval and analysis.

## Indexers

### The Graph

The Graph is a decentralized indexing protocol that allows developers to build and publish open APIs, known as subgraphs, which applications can query using GraphQL. Indexers in The Graph Network operate nodes that index these subgraphs and serve queries, earning rewards for their services.

#### Supported Networks

| Network                           | ID                | Documentation                                       |
| --------------------------------- | ----------------- | --------------------------------------------------- |
| Gravity Alpha Mainnet (legacy L2) | `gravity-mainnet` | [View Documentation](https://thegraph.com/docs/en/) |


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation by asking a question.

Perform an HTTP GET request on the following URL with the `ask` and `goal` query parameters:

```
GET https://docs.gravity.xyz/legacy-alpha-mainnet-l2/the-graph.md?ask=<question>&goal=<user_goal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is what the user is ultimately trying to achieve, the reason they need the answer. Sharing it helps GitBook give you a better, more relevant answer. A goal is most helpful when it describes the outcome the user wants rather than restating the question. For example, with `ask=how do I create an API token`, a goal like `automate deployments from our CI pipeline` lets GitBook tailor the answer to that use case.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.