npm package discovery and stats viewer.

Discover Tips

  • General search

    [free text search, go nuts!]

  • Package details

    pkg:[package-name]

  • User packages

    @[username]

Sponsor

Optimize Toolset

I’ve always been into building performant and accessible sites, but lately I’ve been taking it extremely seriously. So much so that I’ve been building a tool to help me optimize and monitor the sites that I build to make sure that I’m making an attempt to offer the best experience to those who visit them. If you’re into performant, accessible and SEO friendly sites, you might like it too! You can check it out at Optimize Toolset.

About

Hi, 👋, I’m Ryan Hefner  and I built this site for me, and you! The goal of this site was to provide an easy way for me to check the stats on my npm packages, both for prioritizing issues and updates, and to give me a little kick in the pants to keep up on stuff.

As I was building it, I realized that I was actually using the tool to build the tool, and figured I might as well put this out there and hopefully others will find it to be a fast and useful way to search and browse npm packages as I have.

If you’re interested in other things I’m working on, follow me on Twitter or check out the open source projects I’ve been publishing on GitHub.

I am also working on a Twitter bot for this site to tweet the most popular, newest, random packages from npm. Please follow that account now and it will start sending out packages soon–ish.

Open Software & Tools

This site wouldn’t be possible without the immense generosity and tireless efforts from the people who make contributions to the world and share their work via open source initiatives. Thank you 🙏

© 2026 – Pkg Stats / Ryan Hefner

@mersennet/sdk

v0.1.2

Published

TypeScript SDK for Mersennet: JSON-RPC, the on-chain order book (MersennetOrders precompile), agent keys, liquidations, shielded notes and viewing keys

Readme

@mersennet/sdk — the official TypeScript client for Mersennet, the private, verifiable network.

  • JSON-RPC provider — eth_* plus the mersennet_* shielded namespace
  • MersennetOrders client — place/cancel orders on the native on-chain order book
  • ShieldedClient — viewing keys, owner-side note scanning, client-side balance/position reconstruction, in-browser Noir proving (pluggable backend)
  • WebSocket subscriptions — blocks, orders, fills

Install

npm install @mersennet/sdk

Every GitHub release is published to npm as @mersennet/sdk with a provenance statement (npm audit signatures checks the tarball against the tagged source). Installing straight from a tag also works: npm install github:mersennet/sdk-ts#semver:^0.1 (builds on install, Node ≥ 20).

Quick start

import { MersennetProvider, ShieldedClient, ViewingKeyHelpers } from '@mersennet/sdk';

const provider = new MersennetProvider('https://rpc.mersennet.com');
const vk = ViewingKeyHelpers.fromSeed('my recovery phrase');
const wallet = new ShieldedClient({ provider, viewingKey: vk });

await wallet.placeOrder({ marketId: 1n, side: 'buy', price: 1043n, size: 40n });
const { perAsset } = await wallet.getBalance(); // decrypted locally

Networks

| Network | Chain ID | RPC | |---|---|---| | Testnet | 131071 (0x1ffff) | https://rpc.mersennet.com | | Mainnet | 8191 (0x1fff) | at launch |

Development

npm install
npx tsc          # build
node --test tests/*.test.js

Docs: docs.mersennet.com/developers/sdks/javascript