# polkadot-js/api

<https://repo.masters-masters.com/en/repos/polkadot-js/api>

[Home](https://repo.masters-masters.com/en) › [polkadot-js](https://repo.masters-masters.com/en/owners/polkadot-js) › [api](https://repo.masters-masters.com/en/repos/polkadot-js/api)

polkadot-js/api has 1,113 stars on GitHub. Its RepoMasters card: Beta tier. Promise and RxJS APIs around Polkadot and Substrate based chains via RPC calls. It…

| Field | Value |
| --- | --- |
| Owner | [polkadot-js](https://repo.masters-masters.com/en/owners/polkadot-js) |
| Stars | 1,113 |
| Forks | 385 |
| Language | [TypeScript](https://repo.masters-masters.com/en/languages/typescript) |
| License | Apache-2.0 |
| Created | 2017 |
| Topics | jsonrpc, polkadot, substrate, polkadot-js, api, web3, blockchain |
| Tier | [Beta (700 to 1,999 ★)](https://repo.masters-masters.com/en/ranks/box_office) |
| View on GitHub | [polkadot-js/api](https://github.com/polkadot-js/api) |

## Repository

Promise and RxJS APIs around Polkadot and Substrate based chains via RPC calls. It is dynamically generated based on what the Substrate runtime provides in terms of metadata.

The tier for repos with 700 to 1,999 ★. Published odds per card pulled: 6%. Rarity: Rare.

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Data: GitHub · Illustration: the project’s public image, pixelated by RepoMasters.