How much does a Web3 MVP cost?

A Web3 MVP at 137 ranges from €19,000 for a 4-week testnet prototype to €79,000 for an 8-week tokenized product with frontends and integrations. The industry average is €50,000 to €250,000 over three to five months.

How long does it take to build a Web3 MVP?

Four to eight weeks, depending on scope. Industry timelines for the same scope average sixteen weeks.

What is included in a fixed-price MVP?

Fixed-price MVPs include discovery, smart contracts, frontend, wallet and auth integration, tests, and deployment scripts. Audit coordination is included from 6-week scope and up. We absorb the cost of overruns.

Which blockchains do you build on?

We build on Ethereum, Solana, and major EVM and L2 networks including Base, Arbitrum, and Optimism. Chain choice is part of the discovery sprint.

Do you handle smart contract audits?

We write contracts audit-clean from day one and coordinate with external audit firms. AI audit tools catch only about forty percent of what a human audit finds, so independent human review is non-negotiable.

Why not just use AI to generate the code?

In 2026, ninety-two percent of AI-generated codebases ship with at least one critical vulnerability and forty-five percent of AI-written code contains security flaws. In a SaaS app a flaw is a bug. In a smart contract it can drain the entire treasury.

The 2026 narrative

Build a prediction market MVP before the next election cycle.

Kalshi at $22B. Polymarket at $20B. A $35M VC fund explicitly hunting for the next twenty. The lane is open and short.

8 min read·Updated April 2026

The prediction market vertical is the loudest 2026 founder narrative outside stablecoins. Kalshi reportedly hit a $22B valuation in Q1 2026. Polymarket sits at $20B after Intercontinental Exchange took a strategic stake. The two CEOs jointly backed 5c(c) Capital, a $35M fund explicitly seeded to fund roughly twenty prediction-market companies over the next two years. Both incumbents are launching perpetual futures. Kalshi tokenized markets through Solana in December 2025.

The SERP is split between cheap clone-script vendors quoting $5,000–$85,000 and enterprise builds quoting $120,000–$350,000+. Nothing in the founder lane between them. This page is the founder lane.

What you actually get for your money

Clone script

$5–15k

White-label templates. Will not survive contact with real users or real funds. Not for production.

137 fixed-price MVP

€39,000

Six weeks. CLOB architecture. Oracle integration. Audit-ready. Mainnet on the day you say go.

Enterprise build

$120–350k+

Three to nine months. Right scope for Series A onwards. Wrong fit for founders with a window.

The architecture, named honestly

Polymarket migrated from AMM to Central Limit Order Book (CLOB) once the platform mattered. We default to CLOB for any market large enough to attract liquidity providers, with off-chain matching and on-chain settlement. AMM is the right call only when liquidity is shallow and incentivizing LPs is more important than execution quality.

A defensible prediction market MVP in 2026 contains:

Market types: binary (yes/no), scalar (numerical range), categorical (multiple discrete outcomes). Different resolution logic per type.
Order book and matching: off-chain matcher with on-chain settlement. Lower gas, faster UX, transparent reconciliation.
Oracle integration: Chainlink, UMA, or Pyth depending on market category. Election outcomes, sports, crypto prices each prefer different oracles.
Settlement and dispute logic: on-chain resolution with a challenge window. UMA-style optimistic oracle for ambiguous outcomes.
Liquidity bootstrapping: initial maker incentives, fee tier configuration, market-creation flow.
Compliance gating: jurisdictional restrictions, age verification, employee/insider rules (Kalshi and Polymarket both rolled out new restrictions in 2026 around politicians, athletes, and employees).

What is explicitly out of scope at this tier

Perpetual futures markets. Both incumbents are launching these in 2026; building one is a separate engagement, not a feature flag.
Full regulatory clearance (CFTC, equivalent in your jurisdiction). We can architect for it but the legal pathway is not engineering work.
Native mobile applications. We ship a mobile-responsive web app by default.
Custom KYC/AML provider integration beyond standard Persona or Sumsub plug-and-play.

Any of the above can be added at the eight-week (€79k) tier or as a follow-on engagement after the MVP is live.

Why founder-tier prediction markets win or lose

Kalshi and Polymarket already exist. New entrants do not win on raw volume. They win on:

Vertical specificity. Sports books, climate prediction, scientific outcomes, regional politics. The general market is taken; the verticals are not.
Distribution edge. Embedded in an existing audience (a sports media company, a climate platform, a research community).
UX innovation. Mobile-first, social-first, or AI-resolved markets. The incumbents have web UIs from 2022.
Regulatory geography. Markets that work where Kalshi and Polymarket cannot or will not, by design.

Build the technical core fast. Spend the saved months on the moat. The technical core is what we ship.

A working CLOB on mainnet in six weeks. Bring the moat.

A scoping call confirms market type, oracle strategy, chain choice, and the calendar. By the end of it, you have a price, a ship date, and a build partner that has shipped this shape before.