About - A small senior team that ships blockchain and AI products
Etherwave Labs is a blockchain and AI development studio based in Tallinn, Estonia. Three engineers design, build, and ship full-stack Web3 products: smart contracts, DeFi protocols, Telegram Mini Apps, payment integrations, and the AI agents and backends around them, for startups and established brands.
- years building software
- 10+
- years focused on blockchain and DeFi
- 5
- people using products we built
- 100,000+
The team - The engineers you will work with
Etherwave Labs is three engineers. The people you talk to on the strategy call are the people who write the code.
Thomas Cosialls
Full-stack Blockchain & AI Developer
Thomas works across blockchain and AI: stablecoin payments with x402, Circle Nanopayments, and CCTP, concentrated liquidity on Uniswap v4 and Orca, Telegram Mini Apps, and AI agents. He writes most of the technical guides on this site and publishes on DEV.to.
Articles by Thomas Cosialls
- Delta Neutral Strategies in DeFi: How They Work and What Breaks Them
- Circle CCTP Explained: Moving Native USDC Across Chains, and In and Out of Hyperliquid
- Circle Nanopayments Explained: Gas-Free USDC Payments Down to $0.000001
- Gate an API Endpoint with x402: Accept USDC Payments on Your Node.js Server
Justin Olivier
Blockchain and AI Developer
Justin builds AI agents and the blockchain integrations they act through. He wrote our guide to autonomous crypto trading agents with ElizaOS, from market analysis and the decision engine to deployment in a trusted execution environment.
Articles by Justin Olivier
Company - Who you are contracting with
The legal facts, and the recognition we have earned along the way.
- Legal entity
- Etherwave Labs OÜ
- Registry code
- 17137424
- Based in
- Tallinn, Estonia
- Languages
- English and French