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Smart contracts, dApps and on-chain products, shipped to mainnet

Nano Soft designs and builds smart contracts, dApps and on-chain products, from the contract to the app people use. We have built on-chain for 4+ years, on Sui, Walrus, MultiversX, EVM chains, Solana and NEAR, and our Kraterion took 1st place in the Walrus track at Sui Overflow 2026.

At a glance

Blockchain
4+ years on-chain
Recognition
1st place, Walrus track, Sui Overflow 2026
Also
1st place, Payments, xDay Hackathon 2023
Funding
Walrus Foundation (Inkray)
Chains
Sui, MultiversX, EVM, Solana, NEAR

How we help

Two ways we help on-chain

Launch something new on-chain, or add on-chain features to a product you run.

  • Launch a new on-chain product

    For
    Web3 teams and foundations with a protocol, dApp or tool to ship
    You get
    • Contracts designed around what must be true on-chain
    • Devnet and testnet releases before mainnet
    • A dApp people can use without crypto experience
    • Code prepared for an outside audit
    First step
    Send us the idea, the chain and any existing contracts
  • Add on-chain features

    For
    Products that need payments, ownership or verifiable data without a rebuild
    You get
    • Token payments, streaming or vesting
    • Ownership records users can check
    • Verifiable storage for files and records
    • Sign-in that hides the wallet where it should
    First step
    Tell us what users should be able to prove or own

What we build

What we build on-chain

From the contract to the screen people use. We build the whole product, not only the on-chain part.

  • Smart contracts

    Contracts on Sui, MultiversX, EVM chains, Solana and NEAR, designed around what must be true on-chain and tested before mainnet.

  • dApps with easy sign-in

    Web apps where people sign in with a familiar login, as in Kraterion, or with a wallet.

  • Decentralized storage

    Files on Walrus with encryption and access you can revoke, behind an interface teams already know.

  • Token streaming and payments

    Per-second streams, vesting and payouts, as in Coindrip, live on MultiversX mainnet since 2023.

  • Paywalls and access rules

    Encrypted content that only subscribers or owners can read, the way Inkray handles paid posts.

  • Indexers and back ends

    Services that follow on-chain events and keep a fast, queryable mirror of chain state.

  • Admin and analytics tools

    Dashboards for operators to manage contracts, users and funds without touching raw transactions.

Approach

How we approach blockchain work

  • Put only promises on-chain

    The contract holds what must be true for everyone; the rest stays off-chain, where it is cheaper.

  • Testnet before mainnet

    Every contract runs on devnet and testnet first, with tests for every path that moves money.

  • Build to be audited

    We write contracts for an outside auditor to review, and say plainly when code is unaudited.

  • Hide the chain from users

    People should not need a wallet or tokens to start; Kraterion users sign in with Google.

Proof

Where we have done this

Three of our own products run on mainnet, on Sui and MultiversX.

  • Kraterion run trace showing the question, each tool call, the cited answer and a replayable record

    Kraterion

    A runtime for AI agents you can audit

    Files sit on Walrus, owned by your Sui account, behind a standard S3 interface. Agents answer from them with cited sources, and every run is recorded as a tamper-evident trail you can replay. Live on Sui mainnet, in private beta.

    Platform
    Web, API
    Category
    AI agent runtime and storage
    Recognition
    1st place, Walrus track, Sui Overflow 2026
  • Inkray

    A publishing platform where writers own and earn from their work. Articles are stored on Walrus and registered on Sui. There is a web app, an iOS reading app and an MCP server for AI agents.

    • Funded by the Walrus Foundation
    • Invite-only beta

    inkray.xyz

  • Coindrip

    A token streaming protocol: deposit tokens once and they are released to the recipient every second. Built for vesting, payroll and airdrops. Live on MultiversX mainnet since February 2023, with a Sui version on testnet.

    • 1st place, Payments, xDay Hackathon 2023
    • 4th place, Payments and Wallets, Sui Overflow 2025

    coindrip.finance

FAQ

Questions about blockchain projects

Not covered here? Email hello@nano-soft.tech.

  • Which chains do you work with?

    Nano Soft builds on Sui (with Walrus for decentralized storage), MultiversX, EVM chains such as Ethereum and its layer 2s, Solana and NEAR.

    Kraterion and Inkray run on Sui mainnet with files on Walrus, and Coindrip has run on MultiversX mainnet since February 2023, with a Sui version on testnet. If your project is on another chain, ask us: we will tell you honestly whether we are the right team.

  • Do you build on Sui and Walrus?

    Yes, Nano Soft builds on Sui and Walrus. Kraterion, our storage and agent runtime, took 1st place in the Walrus track at Sui Overflow 2026, a hackathon with 747 projects from 58 countries.

    Inkray, a publishing platform on Sui and Walrus, is funded by the Walrus Foundation. Coindrip took 4th place in Payments and Wallets at Sui Overflow 2025.

    Read the Kraterion case study

  • Do you audit smart contracts?

    No, Nano Soft does not audit smart contracts: an audit should come from someone who did not write the code.

    We build contracts to be audited: small, tested and documented. We work with the auditor you choose and fix what they find. We are honest about status too: Kraterion's on-chain package is publicly marked unaudited.

  • Can people use the product without a wallet or crypto?

    Often, yes: Nano Soft designs on-chain products so people can start without a wallet or crypto.

    Kraterion users sign in with Google and get an on-chain account with no seed phrase, and the platform pays storage and transaction fees. Inkray covers the on-chain cost of publishing for its writers. Where a wallet is the point, we make connecting one simple.

  • Can you take over an existing contract or dApp?

    Yes, Nano Soft takes over existing contracts and dApps, starting by reading the contracts and the app, running the tests and checking what is deployed.

    You then get a written summary of risks and next steps before we change anything. Deployed contracts often cannot be edited in place, so a change may mean a new version and a migration plan.

  • How long does a dApp take to build?

    A dApp timeline depends on the contracts and the app around them, so Nano Soft gives you a date in the written plan.

    For reference, we built the first version of Kraterion (contracts, storage gateway and app) in about 6.5 weeks for Sui Overflow 2026, and took it to mainnet on 1 September 2026.

Building something on-chain?

A few lines are enough: what the product is, where it stands and when you need it. We reply to every message within 2 working days.

Email
hello@nano-soft.tech
Reply
Within 2 working days
Based in
Bucharest, Romania