# Cosmos SDK Documentation

## Get Started

-  **[SDK Intro](./intro/README.md)**: High-level overview of the Cosmos SDK.
-  **[SDK application tutorial](https://github.com/cosmos/sdk-application-tutorial)**: A tutorial to learn the SDK. It showcases how to build an SDK-based blockchain from scratch, and explains the basic principles of the SDK in the process.

## Resources

- [Specifications](./spec/README.md): Specifications of modules and other parts of the Cosmos SDK. 
- [SDK API Reference](https://godoc.org/github.com/cosmos/cosmos-sdk): Godocs of the Cosmos SDK.
- [REST API spec](https://cosmos.network/rpc/): List of endpoints to interact with a `gaia` full-node through REST.

## Cosmos Hub 

- [Join the mainnet](./cosmos-hub/join-mainnet.md) of the Cosmos Hub.
- [Join the latest public testnet](./cosmos-hub/join-testnet.md) of the Cosmos Hub. 
- [Start your own `gaia` testnet](./cosmos-hub/deploy-testnet.md).

## Creating a new SDK project

To create a new project, you can either:

- Fork [this repo](https://github.com/cosmos/sdk-application-tutorial/). Do not forget to remove the `nameservice` module from the various files if you don't need it. 
- Use community tools like [chainkit](https://github.com/blocklayerhq/chainkit).

## Languages

The Cosmos-SDK is currently written in [Golang](https://golang.org/), though the
framework could be implemented similarly in other languages.
Contact us for information about funding an implementation in another language.

## Contribute

See [this file](https://github.com/cosmos/cosmos-sdk/blob/master/docs/DOCS_README.md) for details of the build process and
considerations when making changes.

## Version

 This documentation is built from the following commit: