31Third — The Execution Layer for On-Chain Portfolios

31Third is the execution layer for on-chain portfolios. Headquartered in Amsterdam, Netherlands, we enable funds, DAOs, asset managers, and AI agents to automate trading, rebalancing, and risk management on Gnosis Safe — without manual signing. Our non-custodial Execution Infrastructure (EI) settles atomically, charges a flat 10 bps protocol fee, and supports any ERC-20 token, stablecoin, or tokenized real-world asset (RWA).

How does 31Third work?

Every trade is routed through an on-chain Policy Engine: immutable gatekeepers that enforce mandate, risk, and compliance rules before execution. Liquidity comes from a curated set of institutional venues — including LMAX Digital RFQ, Bebop, 0x, Hashflow, and Aave — aggregated through our Compliant Liquidity layer. Settlement happens directly from the client's Gnosis Safe, so assets never leave self-custody. Cumulative protocol volume has surpassed $200M with an average ticket of $150K, primarily across Ethereum mainnet, Arbitrum, Base, and Polygon.

What can you build with 31Third?

Treasury teams use Basket Trading to rebalance into a target allocation in one transaction. Vault managers running Enzyme strategies use Index Automation to rebalance against rule-based benchmarks. Builders integrate the Swap API for programmatic execution, and AI agents use the Policy Engine to act autonomously within owner-defined guardrails. Asset managers deploy our White-Label Platform under their own brand.

Why choose 31Third for on-chain execution?

Because compliance is enforced in code, not in spreadsheets. Because liquidity is sourced from institutional RFQ venues, not retail AMMs. Because every trade settles atomically from your own Gnosis Safe — never a custodian's wallet.

Who is behind 31Third?

31Third was founded in 2021 by Manuel Zwittag, Koppany Kovacs, and Philipp Schweiger. The company is a participant in the EU DLT Pilot regime and is backed by Outlier Ventures and Techstars. Reach the team at hello@31third.com or book a demo with Manuel directly.