Gold SponsorSera at Token2049 Singapore · 7–8 Oct 2026

a dollar is a dollar.
a euro is a euro.
a real is a real.

On Par is Sera's technology for swapping any two stablecoins that share the same fiat peg at 1:1, regardless of issuer.

Across the industry, same-peg coins routinely quote at different prices on different venues — and every swap leaks value to slippage. Sera's central limit orderbook concentrates liquidity at the par price for every same-peg pair, so 1:1 swaps actually settle at 1:1, with real depth and atomic on-chain settlement.

1.0000USDTUSDCUSD PEG · $1.001.0000EURCEURSEUR PEG · €1.001.0000BRZBRLABRL PEG · R$1.00

Hundreds of stablecoins. No clearing house.

This has happened before, almost feature for feature, on two continents. The fix was never fewer currencies. It was a place where every one cleared against every other at par.

America · 1837–1863
8,000+
private dollars

In the Free Banking era, thousands of banks each issued their own dollar. Notes traded at 1% to 25% discounts, sorted by brokers and catalogued in weekly reporters. A dollar was not a dollar.

The fix · 1853

The New York Clearing House. Every bank's notes met every other's and settled at par. The plumbing, not a single currency, made a dollar a dollar.

China · 1800s–1933
Dozens
of regional silver taels

A tael in Shanghai was not a tael in Tianjin or Canton, each a different silver weight linked by a floating rate, sitting on top of thousands of private notes from native banks and Shanxi draft houses.

The fix · The guilds

The native bankers' guilds ran a daily clearing that netted balances to a common standard, long before the tael was abolished in 1933.

Stablecoins · Today
600+
live, climbing weekly

450+ dollar tokens that break par across issuers, plus local currencies with no fair-price FX, all on 1970s rails. Same structure, on-chain. Sera is the clearing house, and its liquidity providers power it.

Virtual liquidity

One deposit. Up to 20 on-par pairs.

An issuer or liquidity provider locks a single balance. Sera's virtual liquidity engine fans it out across up to twenty 1:1 destinations simultaneously.

Capacity is shared across all pairs. Partial fills are allowed. Cancel anytime. The same dollar of inventory makes your stablecoin instantly interoperable with every other coin in its family — no per-pair integration, no fragmented books.

10,000U LOCKEDUSDC1.0000USDT1.0000USDS1.0000USDe1.0000PYUSD1.0000+ up to 15 moreSHARED CAPACITY
20
Receive currencies per deposit. One balance, many on-par destinations.
1.0000
Par price by default. Override per pair if you want to deviate from market.
0 ms
Rebalancing latency. Capital is shared, not split — every pair sees the full book.
Smart Order Routing

Pair with a few.
Reach the entire network.

Listing your stablecoin doesn't mean integrating with every other one. Pair against one anchor in your own fiat family — Sera's Smart Order Routing handles the rest. Inside each family, par holds at 1:1. Between families, Sera's FX triangle keeps cross-currency rates coherent across every routed path, so swaps always settle at fair value, whether direct, multi-hop, or cross-currency.

TRIANGULAR ARBITRAGE1.0000USDeUSDCPYUSDEURSEURIEUREBRLABRLTBRLBUSDTUSDEURCEURBRZBRLU
What you can build

One engine. Every stablecoin flow.

On Par is Sera's par-settlement engine — a central limit orderbook that pins every same-peg pair at 1:1 and routes seamlessly between them. Plug into it once, ship every flow your customers actually need.

USDTUSDCUSDePYUSDUEVERY SWAP AT 1.0000
Use case 01

1:1 fungibility, instantly.

List your stablecoin on Sera. The moment it hits the orderbook, it swaps at par with every other coin in its fiat family — no bilateral integrations, no seeding rounds, no liquidity bootstrapping.

Your holders get instant access to the rest of the network. You get distribution to every wallet that already holds a same-peg coin.

Outcome · instant fungibility for any new stablecoin
100 USDT100 USDC100 PYUSDOn Par300 UPREFERRED
Use case 02

Settle in your preferred stablecoin.

Accept any USD stablecoin from your customers — USDT, USDC, PYUSD, or anything new. Sera converts at par and settles into the one you actually hold on your books.

Choose your settlement coin by compliance posture, custody policy, yield strategy, or treasury preference. Your customers don't have to care which coin they hold; you don't have to care which one they send.

Outcome · any-in, one-out treasury
300 UYOUOn Par100 USDT100 USDC100 PYUSD
Use case 03

Pay many, each in their preferred coin.

Originate a single payment from your wallet. Sera fans it out to recipients in whichever USD stablecoin each of them prefers — payroll, vendor settlements, marketplace payouts, all at 1:1.

You don't have to maintain inventory in three different stablecoins. You hold one. Sera handles the rest.

Outcome · one-out, many-in for recipients
YOUR WALLET200 USDT300 USDC100 PYUSDOn Par600 USDCRECIPIENT
Use case 04

Send from many balances at once.

Your treasury sits across USDT, USDC, PYUSD and more. Originate a single outgoing payment and Sera sweeps from all of them in one transaction, delivering exactly the asset and amount your recipient expects.

No manual rebalancing. No bridge hops. No "let me move this first." Just one signature, one settlement.

Outcome · multi-balance consolidation in one signature
100 USDCUSD FAMILY500 BRZBRL FAMILYOn Par+ FX92 EURCEUR FAMILY98 USDTUSD FAMILY
Use case 05

Cross-currency FX in one engine.

Move between fiat families on the same orderbook. USD → EUR, EUR → BRL, BRL → USD. Par holds inside each family. Real market FX rates apply between them — quoted live, settled atomically, no separate FX venue.

Most clearinghouses stop at the dollar. Sera's CLOB carries every major fiat family side-by-side. One integration, one settlement, every currency pair your customers need.

Outcome · full multi-currency stack in one engine
Wherever same-peg pairs exist

One technology. Every fiat family.

Four illustrative families below — but On Par works on any same-peg pair, today or whenever a new stablecoin launches. The technology doesn't care about the list.

USD$1.00 = $1.00

US dollar family

All swaps settle at par inside the USD family.

USDT· Tether
1.0000
USDC· Circle
1.0000
PYUSD· PayPal
1.0000
USDe· Ethena
1.0000
U· United Stables
1.0000
EUR€1.00 = €1.00

Euro family

All swaps settle at par inside the EUR family.

EURC· Circle
1.0000
EURS· STASIS
1.0000
EURCV· EUR CoinVertible
1.0000
EURI· Eurite
1.0000
EURE· Monerium
1.0000
BRLR$1.00 = R$1.00

Brazilian real family

All swaps settle at par inside the BRL family.

BRZ· Brazilian Digital
1.0000
BRLA· BRLA Digital
1.0000
BRLB· Crown
1.0000
BRLT· Trace Finance
1.0000
AUDA$1.00 = A$1.00

Australian dollar family

All swaps settle at par inside the AUD family.

AUDD· Australian Digital Dollar
1.0000
AUDF· Forte AUD
1.0000
AUDM· Macropod
1.0000
The difference

Most clearinghouses stop at the dollar. We don't.

Single-currency clearinghouses

  • ×USD-only fungibility. Other currencies are an afterthought.
  • ×Liquidity is pooled per-pair. New pairs need new capital.
  • ×Redemption queues introduce settlement delay.
  • ×Cross-currency moves still need a separate FX venue.

Sera

  • On Par across every fiat family — USD, EUR, BRL, AUD, and more.
  • Virtual liquidity. One deposit fans out across up to 20 on-par pairs.
  • Atomic onchain settlement. No queues, no redemption windows.
  • FX between families on the same orderbook. One book, one settlement.
Build on par

Same peg. Same value.
Every currency.

Make your stablecoin instantly interoperable. Integrate once, fan out to twenty pairs, settle at par across every fiat family your customers use.