# Developer

Developers build applications on the commodities Bittensor subnets produce, querying the network with an API key.

_Source: https://beta.taostats.io/docs/start-here/developer_

_Last reviewed: 2026-09-14_

**Developers** build applications that use the commodities produced by Bittensor subnets. Where validators provide gateway access to the network, developers who are not aligned with a validator use an API key to query the network through a participating validator.

> [!NOTE]
> This page is being expanded. To start building on Taostats data, see [Getting started with the Taostats API](https://beta.taostats.io/docs/start-here/getting-started-with-taostats-api) and the [API Reference](https://beta.taostats.io/docs/api-reference).

## Key points

* Obtaining and interacting with data can vary from subnet to subnet.
* Products such as [nineteen.ai](https://nineteen.ai/) make interaction with many subnets easy via a single API key.
* Taostats exposes network and subnet data through its [API](https://beta.taostats.io/docs/api-reference), so developers don't have to run their own indexer.

## Related

* [Getting started with the Taostats API](https://beta.taostats.io/docs/start-here/getting-started-with-taostats-api)
* [API Reference](https://beta.taostats.io/docs/api-reference)
* [Getting started with Bittensor](https://beta.taostats.io/docs/start-here/getting-started-with-bittensor)