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# @polkadot/api

This library provides a clean wrapper around all the methods exposed by a Polkadot/Subtrate network client. For complete documentation around the classes, interfaces and their use, visit the [documentation portal](https://polkadot.js.org/api/).

The API is split up into a number of internal packages -

- [@polkadot/api](packages/api/) The low-level base API library
- [@polkadot/api-rx](packages/api-rx/) A RxJs Observable wrapper around the API
- [@polkadot/api-format](packages/api-format/) Input and output formatters
- [@polkadot/api-provider](packages/api-provider/) Providers for connecting

Type definitions for interfaces as exposed by Polkadot & Substrate clients -

- [@polkadot/extrinsics](packages/type-extrinsics/) Base extrinsic definitions & codecs
- [@polkadot/jsonrpc](packages/type-jsonrpc/) Definitions for JSONRPC endpoints
- [@polkadot/params](packages/type-params/) Input/output parameter formatting
- [@polkadot/primitives](packages/type-primitives/) Primitive type definitions, builder & codecs
- [@polkadot/storage](packages/type-storage/) Definitions for storage entries