TACEO Launches Merces Protocol to Bring Private Onchain Payments to Monad and World Chain
By Lauren Towner · 25 September 2026

Quick Summary
TACEO has launched Merces, a private onchain payments protocol now live on Monad and World Chain. By utilizing multiparty computation technology, Merces allows businesses to hide transaction amounts and counterparties while remaining fully auditable for regulators, solving the transparency barrier for institutional blockchain adoption.
How Does TACEO Merces Enable Private Onchain Payments?
The Merces protocol solves the transparency problem of blockchains by keeping real balances and counterparties off the public ledger. Instead of storing raw data, the system holds a cryptographic summary of state. Using multiparty computation (MPC), true balances are split into secret shares across independent computers, ensuring no single entity sees the full transaction details. This private onchain payments infrastructure allows for:
- 1,000 transactions per second throughput for high-volume finance.
- Sub-cent transaction costs, specifically less than 0.01¢ per transfer.
- Verifiable mathematical proofs (coSNARKs) that confirm transaction validity without revealing figures.
Which Partners Are Integrating TACEO’s Confidentiality Protocol?
TACEO has announced four major launch partners to integrate private onchain payments into existing financial workflows. IntellectEU is connecting Merces to bank back offices via its CatalyX software, while LayerZero is enabling cross-chain private transfers. Orion Finance is developing private yield vaults, and Zenith is bringing shared-state privacy to the Canton Network, where the DTCC tokenizes U.S. Treasuries. These integrations ensure that confidential financial data can move seamlessly between regulated institutions and public networks without exposing sensitive business intelligence.
Why is Privacy Essential for Institutional Blockchain Adoption?
Serious businesses have historically avoided public rails because financial visibility is enforced by default. Without private onchain payments, competitors can track a firm's payroll, supplier pricing, and treasury movements. TACEO’s "Private Shared State" allows multiple parties, such as an issuer and a custodian, to agree on a single tokenized position while only seeing their respective shares. This is a critical requirement for the tokenization of bonds and other complex assets that require both privacy and verifiable execution across networks.
FF NEWS TAKE:
This is a massive step forward for the industry. For years, privacy in crypto was often associated with illicit activity, but TACEO reframes private onchain payments as a compliance-first business necessity. By enabling private shared state, they are removing the final hurdle for banks to move treasury and payroll onto public rails. It is not just a tool; it is the missing institutional layer required for blockchain to move from a retail experiment to a global financial standard.
Companies in this story: World Vechain, Monad, TACEO
People in this story: Cameron Nili, Jonathan Mayeur, Matteo Manzi, Lukas Helminger