# Introduction
This document presents an overview of all the API endpoints a node exposes and the higher-level client SDKs.
# An Overview of All Endpoints and SDKs
Each node can be configured with the following endpoints, and each type of endpoint is served on a different port for users to interact with a node. And we provide Plug Chain Hub client SDKs to facilitate developers to develop applications more conveniently. Details on how to configure each endpoint and SDKs is provided in their own section.
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