SI Holdings
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erc4337.si

Smart accounts, simplified transactions

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Short name7 letters · easy to spell, say and remember
.siSpells SI — the new name for AI

What “erc4337” means

ERC-4337 defines an account abstraction standard for Ethereum, enabling smart contract wallets to behave like externally owned accounts. This is valuable as a brand for its technical innovation and future-proofing of blockchain interactions.

The SI-era angle

Super Intelligence needs a way to hold funds and transact on-chain without human sign-off. ERC-4337 enables programmable smart accounts built for autonomous agents. This name pairs the premier account abstraction standard directly with SI.

Why erc4337.si is premium

  • The core standard for smart accounts, recognized instantly across the entire Web3 space.
  • A precise technical name that creates instant authority with blockchain engineers and wallet builders.
  • Clean, memorable identity for the future of programmable on-chain accounts and payments.

Market snapshot

Blockchain technology

$57.7B (2025)

→ $9.06T by 2033 · 88.2% a year

Source: Grand View Research

Brand ideas

What you could build on erc4337.si

01

Smart Wallet Engine

A developer toolkit for deploying programmable accounts with sponsored gas fees.

02

Autonomous Agent Pay

An on-chain payment rail that lets intelligent software manage its own treasury.

03

Bundler Relay Network

High-speed infrastructure that packages user operations and submits them directly to Ethereum.

Who buys erc4337.si

  • smart contract wallet startups
  • blockchain infrastructure providers
  • account abstraction tooling teams
  • decentralized finance protocols
  • autonomous agent payment developers

Why .si

In September 2026 the US government officially renamed AI “Super Intelligence — SI”. Elon Musk (“No more AI. SI.”) and Nvidia’s Jensen Huang adopted it within days, and .si registrations jumped 2,199%. .si is the only address on the internet that spells SI — and every great word exists only once.

Why .si is the address of the SI era

Frequently asked

Why build on a standard-specific name like erc4337.si?

It gives your project immediate credibility in account abstraction. Developers and technical founders immediately recognize what your service delivers.

Can this domain serve consumer wallet applications?

Yes. It works cleanly for consumer smart accounts, developer SDKs, or high-volume payment relays.

How does account abstraction link to Super Intelligence?

Autonomous software agents cannot use traditional private keys safely. Programmable smart accounts give them secure, automated access to on-chain money.

How do I buy this domain?

Click “Buy now / Make an offer”. The purchase runs through Spaceship’s secure checkout and escrow — payment is protected until the domain is transferred to you.

Can I make an offer instead of buying now?

Yes. Use “Make an offer” on the Spaceship page and we will respond quickly.

How long does the transfer take?

Usually within 1–3 days after payment is confirmed. Spaceship guides both sides through the .si transfer step by step.

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