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Greta.Agency
Web3 MVP Agency · 2026

Ship your blockchain product in 6 weeks

Greta is a specialist MVP development agency for Web3 founders. We build your minimum viable product on the blockchain — audited smart contracts (think of these as permanent, self-running computer programs), wallet connections, DeFi protocols, NFT platforms, and live data dashboards — from your idea to a working product on the actual blockchain in 6 weeks.

Whether you are launching a DeFi protocol (a finance app without a bank in the middle), an NFT marketplace (a shop for digital collectibles), a DAO tooling suite (software to help groups vote and govern together), or a token-gated SaaS product (where holding a token unlocks access), we turn your idea into real, working code — without the 12-month waits that old-school blockchain studios charge for.

6 weeks

Delivery timeline

Smart contracts

Audited & deployed

Wallet connect

MetaMask + WalletConnect

£20k

Starting price

Why most Web3 MVPs stall before mainnet

Building a Web3 product is very different from building a normal app. Smart contracts are permanent once deployed — like carving words into stone. A single mistake in the code can drain a protocol of millions of dollars in minutes. History has shown this happens far too often. Most early-stage teams do not realise how wide the security risks are. They ship contracts without enough review, get exploited shortly after launch, or have to pay a fortune to fix it later. If you are not sure what an MVP is and how it applies to blockchain, that is completely normal — most founders are not blockchain engineers.

On-chain data is also genuinely hard to query. Without a proper indexing layer (think of it like a search engine for your blockchain app), your front-end has to ask the blockchain directly for every bit of information. That is slow and expensive. It makes your app feel broken. Building good data tools alongside smart contracts requires two rare skills at once — Solidity expertise and solid backend engineering. Very few teams have both. This is where a specialist MVP development agency makes a real difference.

Greta solves both problems. Every project combines contract design, an internal security check, a front-end app build, and on-chain data tools — all in one fixed-scope engagement. You get a mainnet-ready Web3 product, not a rough prototype that needs 3 more months of work before it is safe to show real users. If you are also exploring AI-powered MVP development alongside your blockchain product, we can combine both in a single build.

Quick Start

Ready to build?

Let's bring your idea to life. Fast, affordable, and production-ready.

What is included in a Greta Web3 MVP

Every Web3 MVP engagement covers the full technical stack — from contract design to the user-facing app, wallet experience to live on-chain data — so your team ships a complete, investor-ready product. Here is exactly what you get.

Audited Solidity or Rust smart contracts

We write the programs that live permanently on the blockchain. These cover your core rules — token mechanics (how your token works), staking (locking tokens to earn rewards), liquidity pools (shared pots of money for trading), governance (letting token holders vote), or custom DeFi logic. Every contract comes with tests and an internal security review.

MetaMask & WalletConnect integration

Your app works with both MetaMask (a browser plugin that holds crypto) and WalletConnect v2 (a way to connect mobile wallets by scanning a QR code) right out of the box. Users get a smooth connection experience, clear prompts when switching networks, and helpful error messages when something goes wrong — not confusing technical errors.

On-chain data indexing via The Graph

We build a custom subgraph (think of it as a fast, searchable copy of your blockchain data) to power transaction history, leaderboards, portfolio views, and analytics. This means your app loads quickly instead of waiting for slow blockchain reads. We can also build a full