> ## 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.

# Gear support

> Index Gear programs running on Substrate — additional pallets, message routing, and program-specific data sources for the Gear runtime.

<Info>
  SQD Network has gateways for two networks that use Gear Protocol: **Vara** and **Vara Testnet**. Here are their endopint URLs:

  ```
  https://v2.archive.subsquid.io/network/vara
  ```

  ```
  https://v2.archive.subsquid.io/network/vara-testnet
  ```
</Info>

Indexing [Gear](https://gear-tech.io/) programs is supported with [`addGearMessageQueued()`](/en/sdk/squid-sdk/reference/processors/substrate-batch/data-requests#addgearmessagequeued) and [`addGearUserMessageSent()`](/en/sdk/squid-sdk/reference/processors/substrate-batch/data-requests#addgearusermessagesent) specialized data requests. These subscribe to the events [`Gear.MessageQueued`](https://wiki.gear-tech.io/docs/api/events/#messagequeued) and [`Gear.UserMessageSent`](https://wiki.gear-tech.io/docs/api/events/#usermessagesent) emitted by a specified Gear program.

The processor can also subscribe to any other event with [`addEvent()`](/en/sdk/squid-sdk/reference/processors/substrate-batch/data-requests#events) and filter by program ID in the batch handler, if so necessary.

An example of a squid indexing a Gear program (an NFT contract) can be found [here](https://github.com/subsquid/squid-sdk/tree/master/test/gear-nft).