Rho Labs launches Rho Relay, a private cross‑chain settlement bridge for the Canton network

Rho Labs introduces Rho Relay, a non‑custodial bridge that lets EVM‑based DeFi participants trade Canton Coin directly, using private RFQ execution and atomic settlement. The move expands Rho’s institutional‑grade market infrastructure beyond its Rho X rates market and positions Canton as a privacy‑focused settlement layer for cross‑chain trading.

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Rho Labs, the team behind the Rho X cryptonative interest‑rates market, announced the launch of Rho Relay on May 16, 2026. The new service gives Ethereum‑compatible DeFi users a native, private route to trade Canton Coin (CC) without first passing through a centralized exchange or a generic bridge.

The problem Rho Relay solves

DeFi traders who need exposure to the Canton network currently face a fragmented set of options:

Centralized exchanges – they provide liquidity but require custody of assets and expose users to KYC, regulatory, and counter‑party risk.
Generic bridges – these often rely on AMM pools, which introduce slippage and can be vulnerable to exploits.
Isolated liquidity paths – many projects build point‑to‑point bridges that lack composability and auditability.

For institutional participants, the lack of a private, auditable settlement layer is a show‑stopper. They want to execute large RFQ (request‑for‑quote) trades without revealing order size or price to the market, and they need guarantees that the trade settles atomically across chains.

How Rho Relay works

Rho Relay is not a simple token swap. It combines three core components:

RFQ‑based execution – counterparties submit quotes off‑chain, and the best price is locked before any on‑chain activity. This eliminates the slippage typical of AMM designs.
Atomic cross‑chain settlement – using the Canton private settlement protocol, the trade is finalized on both the EVM side and the Canton side in a single transaction. If either leg fails, the entire operation reverts, protecting both parties.
Zero‑knowledge privacy – the settlement proof is posted on‑chain, but the underlying trade details remain hidden, satisfying institutional compliance requirements.

The workflow can be summarised as follows:

An EVM trader requests a quote for CC via the Rho Relay API.
Liquidity providers on Canton respond with signed RFQs.
The trader selects a quote; the agreement is hashed and committed on‑chain.
A Canton‑native smart contract locks the required CC, while an Ethereum contract locks the counterpart asset (e.g., USDC).
Once both locks are confirmed, the contracts release the assets to the respective parties, completing the trade.

Because the settlement happens on Canton’s private ledger, the transaction data is not publicly visible, yet the proof of execution can be audited by any authorized participant.

Market positioning and traction

Rho Labs has not disclosed a dedicated funding round for Rho Relay, but the launch builds on the capital that has already been raised for the broader Rho X platform. Since its 2024 debut, Rho X has processed $58 billion in cumulative volume, with $4 billion+ moving each month. That activity demonstrates strong institutional demand for non‑custodial, rate‑focused infrastructure, and the company is now leveraging that expertise to address cross‑chain settlement.

By offering a private, audit‑ready bridge, Rho Relay differentiates itself from the many public bridges that dominate the Ethereum‑Canton connection today. The service also opens Canton to a wider DeFi audience, potentially increasing CC liquidity and attracting more on‑chain derivatives, lending, and synthetic products that rely on high‑quality settlement.

What this means for the Canton ecosystem

Liquidity expansion – EVM users can now bring capital into Canton without the friction of centralized exchanges, which should deepen order books for CC‑based markets.
Institutional appeal – privacy‑preserving RFQ execution aligns with the compliance frameworks of hedge funds and banks that have been hesitant to engage with public bridges.
Network effects – As more chains integrate with Rho Relay, the number of settlement routes grows, reinforcing Canton’s role as a hub for private cross‑chain trading.

Looking ahead

Rho Labs plans to add support for additional assets and to onboard routing partners that can provide liquidity across a broader set of chains. The company’s roadmap hints at multi‑hop settlement, where a single RFQ could span three or more networks before reaching its final destination, further reducing friction for complex arbitrage or hedging strategies.

For developers interested in experimenting with the bridge, Rho Labs has published an open‑source SDK on GitHub that abstracts the RFQ workflow and settlement proof verification. Detailed documentation is available at the Rho Relay portal.

Rho Relay illustrates how private settlement can move from a niche requirement to a mainstream feature of DeFi infrastructure. By marrying RFQ execution with atomic cross‑chain settlement, Rho Labs gives both traders and the Canton network a clearer path to deeper, more secure liquidity.