API Libraries

Explore the powerful API libraries designed for interacting with the Polkadot network. These libraries offer developers versatile tools to build, query, and manage blockchain interactions. Whether you’re working with JavaScript, TypeScript, Python, or RESTful services, they provide the flexibility to efficiently interact with and retrieve data from Polkadot-based chains.

In This Section

Polkadot.js API

Interact with Polkadot SDK-based chains easily using the Polkadot.js API. Query chain data, submit transactions, and more via JavaScript or Typescript.

Polkadot-API

Polkadot-API (PAPI) is a modular, composable library set designed for efficient interaction with Polkadot chains, prioritizing a "light-client first" approach.

Sidecar Rest API

Learn about Substrate API Sidecar, a REST service that provides endpoints for interacting with Polkadot SDK-based chains and simplifies blockchain interactions.

Python Substrate Interface

Learn how to connect to Polkadot SDK-based nodes, query data, submit transactions, and manage blockchain interactions using the Python Substrate Interface.

Additional Resources

Understand Chain Data

Familiarize yourself with the data provided by the APIs, including available calls, events, types, and storage items.

Network Configurations

Obtain the necessary configurations and WSS endpoints to interact with the APIs on Polkadot networks.