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

sep6-client

v2.0.0

Published

Node JS based Stellar SEP-6 Client by Whalestack

Readme

Whalestack SEP-6 Client (Node JS)

This client communicates with Whalestack's Stellar SEP-6 transfer server documented here. It lets you on- and off-ramp Bitcoin on the Stellar Network. This client is written in Node JS but we also provide clients in different programming languages.

Read our stellar.toml to inspect available Whalestack assets on the Stellar Network. At the time of writing we support wrapped Bitcoin and Litecoin.

Requirements

  • NodeJS >= 10.14.0
  • axios >= 0.21.1

Installation with npm

npm install sep6-client

Usage Client

const Sep6Client = require('sep6-client');
const client = new Sep6Client();

Examples

Deposit Bitcoin onto Stellar

let response = await client.get('/deposit', {
    'asset_code': 'BTC',
    'account': 'GDONUHZKLSYLDOZWR2TDW25GFXOBWCCKTPK34DLUVSOMFHLGURX6FNU6',
    'memo': 'Sent via SEP-6',
    'memo_type': 'text'
});
// console.log(response.data) -> {"how":"bc1qj633nx575jm28smgcp3mx6n3gh0zg6ndr0ew23","id":"f2118ef4115642870638616a4372","eta":600,"min_amount":"0.00001","max_amount":"100.0000000","extra_info":{}}

Returns a Bitcoin deposit address alongside some additional context information documented here. Bitcoin sent to the received deposit address is tokenized onto Stellar and sent to above account. The tokenized Bitcoin can be sent and received on the Stellar Network, exchanged for other assets on the SDEX, or be deposited into Stellar's liquidity pools.

Withdraw Bitcoin from Stellar

let response = await client.get('/withdraw', {
    'asset_code': 'BTC',
    'dest': 'bc1qj633nx575jm28smgcp3mx6n3gh0zg6ndr0ew23'
});
// console.log(response.data) -> {"account_id":"GCQVEST7KIWV3KOSNDDUJKEPZLBFWKM7DUS4TCLW2VNVPCBGTDRVTEIT","memo_type":"text","memo":"010cdf0a41410d75b2797a6fa38f","id":"010cdf0a41410d75b2797a6fa38f","min_amount":"0.0005000","max_amount":"100.0000000","fee_fixed":0.0002,"fee_percent":0.2,"extra_info":{"message":"An amount above 100.0000000 will take longer to complete"}}

Returns a Stellar account and memo alongside some additional context information documented here. Tokenized Bitcoin sent to the given account is burned on the Stellar Network and released into the Bitcoin address given in the request.

Documentation

Please inspect our SEP-6 API docs or email us at service [at] whalestack.com if you have questions.

Support and Feedback

We'd love to hear your feedback. If you have specific problems or bugs with this SDK, please file an issue on GitHub. For general feedback and support requests please email service [at] whalestack.com.

Contributing

  1. Fork it ( https://github.com/whalestackhq/nodejs-merchant-sdk/fork )
  2. Create your feature branch (git checkout -b my-new-feature)
  3. Commit your changes (git commit -am 'Add some feature')
  4. Push to the branch (git push origin my-new-feature)
  5. Create a new Pull Request