Matterhornmatterhorn·web

The Cowork for Web3.

One subscription. One chat interface. Do anything on crypto — payments, trading, prediction markets — through one interface where the agent prepares your transaction and you execute it.

Start buildingBrowse templates
  • One chat for all of crypto
    Describe what you want. The agent plans, builds and deploys it on EVM, Solana, Sui and more, from one conversation.
  • The agent prepares, you execute
    The agent builds and simulates the transaction and shows you what it will do before it goes anywhere.
  • Hosted and stored on Walrus
    Sites, private files and project memory live on Walrus, owned by your Sui address. Matterhorn pays the storage.
  • Audited before it ships
    Contracts are audited before deploy. Findings come with a fix, and shipping past them is your call, never the agent's.
matterhorn — live

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How it works

  1. Describe it
    Say what you want in plain words. No wallet setup or RPC keys to arrange first.
  2. The agent prepares
    It writes the code, runs the tests, simulates the transaction and shows you what it will do.
  3. You execute
    Review what the agent prepared, then execute it when you are ready.
  4. It's live
    Published on Walrus, owned by your address, and remembered for next time.

What runs on Walrus and Sui

  • Walrus Sites
    Publish puts your site on Walrus, stored for a year; one more click makes it a Walrus Site you own on Sui.
  • Oyster
    Visitors upload photos and files to your app with no wallet; they are stored on Walrus through Oyster.
  • Seal
    Private files are encrypted with Seal, and you decide who can open them.
  • MemWal
    The agent's memory of your project is kept with MemWal, encrypted on Walrus, so it remembers next session.
  • Sui
    Sites and files belong to a Sui address made for you, whose key you can take; contracts are published from your own wallet, which signs every transaction.

Start from a template that uses them, from a one-page site to members-only files.