# solana-foundation/solana-web3.js

Solana JavaScript SDK

Repository: https://github.com/solana-foundation/solana-web3.js
Canonical: https://ross.abutalabs.com/products/solana-web3js
Homepage: https://solana-foundation.github.io/solana-web3.js/
Language: TypeScript
License: MIT
License Family: permissive
Topics: node, nodejs, javascript, js, blockchain, solana, sdk
Last push: 2026-08-26T22:14:24+00:00

## Health v2 (maintenance only)
Score: 79/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 99, release rhythm 41, longevity 100
- inputs: {"age_days": 2933, "days_push": 7, "days_rel": 398, "gap_med": 12, "n_releases_24m": 10}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 2749, forks 1077 (observed 2026-08-28T04:07:17.814195+00:00)

## What it is
The Solana JavaScript SDK (v1.x maintenance branch) for interacting with accounts and programs on the Solana blockchain via its JSON RPC API. It runs in Node.js, browsers, Deno, and React Native, and has been superseded by @solana/kit.

## Use cases
- send and receive SOL transactions from a web app
- query Solana account balances and program data in Node.js
- build a browser dApp that talks to the Solana JSON RPC API
- integrate Solana wallet interactions into a React Native app
- interact with Solana smart contracts (programs) from JavaScript
- sign and submit transactions to the Solana network

## When to choose
- you need to maintain or support an existing project built on the 1.x line of @solana/web3.js
- you need a battle-tested JavaScript client for the Solana JSON RPC API
- you want a lightweight script-tag install for browser-based Solana interactions

## When to avoid
- you are starting a new project - use the successor @solana/kit instead
- you need the latest Solana RPC features only available in the newer SDK
- you are not working with the Solana blockchain

## Facets
- artifact type: library
- maturity: maintenance
- function: sdk, http-client, cryptography
- domain: blockchain, developer-tools, apis
- platform: browser, cross-platform
- tags: solana, web3, typescript, rpc-client, blockchain-sdk, crypto-wallets, cryptocurrency, nodejs, deno, javascript

## Member repositories
- solana-foundation/solana-web3.js (main) score 79

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:07:17.814195+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T08:18:59.325718+00:00, confidence not recorded.
  - readme: https://github.com/solana-foundation/solana-web3.js (fetched 2026-08-28T04:07:17.814195+00:00, sha 508e91101c5d)
  - homepage: https://solana-foundation.github.io/solana-web3.js/ (fetched 2026-08-29T09:57:11.438665+00:00, sha 501b4511a083)
- Data as of 2026-08-30T08:39:29.467469+00:00.