Introducing Overledger 2.0.5


Overledger 2.0.5, a huge double feature release that bridges Stablecoin, NFT and DeFi ecosystems with Blockchain payments

Today we’ve released Overledger 2.0.5 as a key milestone to bridge institutional and enterprise ecosystems with stablecoins, DeFi, NFTs and popular ERC20 and ERC721 digital assets for clearing and settlement.

Live and in production, Overledger now natively supports Blockchain payments to power a new generation of interoperability, payments and clearing and settlement use cases. Using the Overledger Payment API, you can now transact and settle between different digital asset types with a few lines of code in only two API calls. It’s as simple as calling the prepare and execute endpoints:

Prepare – POST
Execute – POST  

Prepare – POST  
Execute – POST  

Use cases supported include:

  • Clearing and Settling between different digital assets, types and stablecoins
  • Collateralising NFTs with stablecoins such as USDC, DAI and USDT
  • Multi-DLT DeFi payments by combining lending and staking products with new settlement options

Natively supported tokens, NFTs and digital assets in Overledger 2.0.5 include:

ERC20 Production

  • Quant (QNT)  
  • Binance Coin (BNB)  
  • Tether USD (USDT)  
  • ChainLink Token (LINK)  
  • Uniswap (UNI)  
  • USD Coin (USDC)  
  • Binance USD (BUSD)  
  • Coin (CRO)  
  • VeChain (VEN)  
  • Theta Token (THETA)  
  • Wrapped Filecoin (WFIL)  
  • OKB (OKB)  
  • Wrapped BTC (WBTC)  
  • Hex (HEX)  
  • HuobiToken (HT)  
  • Aave Token (AAVE)  
  • Dai Stablecoin (DAI)  
  • Maker (MKR)  
  • Compound (COMP)  
  • Bitfinex LEO Token (LEO)  
  • Telcoin (TEL)  
  • Celsius (CEL)  
  • (YFI)  
  • chiliZ (CHZ)  
  • Zilliqa (ZIL)  
  • Telcoin (TEL)  
  • AMP (AMP)  

ERC20 Sandbox

  • Quant (QNT)  
  • BNB (BNB)  
  • Tether USD (USDT)  
  • ChainLink Token (LINK)  
  • USD Coin (USDC)  
  • VeChain (VEN)  
  • Theta Token (THETA)  
  • Wrapped Filecoin (WFIL)  
  • OKB (OKB)  
  • Wrapped BTC (WBTC)  
  • Hex (HEX)  
  • Binance USD (BUSD)  
  • Aave Token (AAVE)  
  • Dai Stablecoin (DAI)  

ERC721 Production

  • Uniswap V3: Positions NFT (UNI-V3-POS)  
  • Ethereum Name Service (ENS)  
  • Art Blocks  
  • CryptoKitties (CK)  
  • CryptoPhunksV2  
  • .crypto (UD)  
  • TheWickedCraniums  
  • Rarible  
  • DystoPunks V2  
  • Gods Unchained Cards (CARD)  
  • Sorare  
  • Meta Bots  
  • Dreamloops V1  
  • Slumdoge Billionaires  
  • TheAlienBoy  
  • BoredApeKennelClub  
  • BoredApeYachtClub  
  • The4001Project  

ERC721 Sandbox

  • Nft  
  • ThronNFT  
  • Quant NFTs  
  • Rarible  
  • H S N T  
  • TheWall  
  • Ainsoph3  

Upcoming releases of Overledger will build on these capabilities. Institutions and Developers will be able to issue their own fungible and non-fungible tokens, providing a platform for the creation and management of interoperable stablecoins, digital currencies and tokenised assets.  

Download release notes: Release notes 2.0.5

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Overledger 2.x

Overledger 1.x


OAuth 2.0 standard (allowing SSO)

Proprietary (BPI Keys)


In API, seamless updates

In SDK, re-download for updates


Full abstraction across all DLTs

Partial, DLT-specific edge cases

RCG Framework

REST / JSON APIs from OVL Core

Proprietary P2P (experimental)

Time to Deploy

32 minutes (CI / CD pipelines)

1-2 weeks

QNT Utility Token / Treasury

Optimised, audited smart contracts

Experimental smart contracts


Optimised to scale fast – 23 Microservices

Hardened proof of concept
– 9 Microservices

Transaction Routing Algorithm

6 factor, game theory optimised

Experimental P2P emergent


Cloud native (scaling / resilience)

Standalone DB deployments

Cross-DLT Implementation

REST API calls direct to OVL, integrated smart contract back end

SDK-based Javascript 
apps call smart contract functions
via OVL

2021 Achievements

50% Quant team has grown by over 50% and will continue to do so 

OVL1.0 to 2.0 Release schedule accelerated, moved to much more frequent automated updates
– Previously, last major update was seven months, then in early 2021 moved to three months (Jan and March)
and then to monthly (April and May). We’re now moving to fortnightly releases. 

2.5X Overledger is now 2.5x bigger (April)  

2.0 Re-engineered the entire 2.0 architecture

Open API 3.0 for easy integration into developer workflows

OAuth 2.0 for single sign on for enterprise customers    

Cloud Native Scalable and resilient already, now deployable automatically 

Native Transactions 

OVL 2.0 Developer portal 2.0