---
id: api-overview
title: 'Overview'
sidebar_position: 1
---

import ApiTypes from '../../src/components/snippers/api-types.tsx';

The SDK contains three APIs:

- <ApiTypes type="Tx" />

  send message to greenfield

- <ApiTypes type="Query" />

  [query](https://docs.bnbchain.org/greenfield-docs/docs/api/blockchain-rest) info from greenfield.

- <ApiTypes type="Storage Provider" />

  [more details](https://docs.bnbchain.org/greenfield-docs/docs/api/storage-provider-rest)