137

137 is a small studio based in Sofia, Bulgaria, working with Web3 founders who need to move from concept to a working product quickly. Team members' backgrounds are described as spanning mathematical physics, quantitative trading desks, DeFi development, wallet infrastructure, banking, iGaming, healthcare systems, and encrypted file exchange. The studio positions itself as an alternative to generalist agencies and AI-generated code for founders building blockchain-based products, and it serves clients preparing for fundraising rounds or audits. The core offering is structured around three fixed-scope, fixed-price Web3 MVP packages. A four-week package (€19,000) delivers an idea-to-prototype build on testnet, including wallet integration, authentication, one smart contract, and one chain. A six-week package (€39,000) is described as audit-ready, covering frontend, contracts, tests, and deployment scripts, with mainnet launch available on request; this is noted as the option most clients choose. An eight-week package (€79,000) extends to tokens, additional frontend work, and integrations, aimed at teams preparing for a funding round, with an equity-based payment option available. The studio states it absorbs cost overruns rather than passing them to clients. Services listed also include SEO and general web development and design work alongside the Web3-specific builds.