VIA Labs is a leading blockchain infrastructure provider powering the VIA Network, a secure and bridgeless multi-layered system enabling cross-chain communication. The VIA Labs Blog offers a deep dive into the technology, strategies, and innovations behind the VIA Network. Here, we share practical developer guides, and ecosystem updates designed to help developers, enthusiasts, and innovators build the next generation of interoperable dApps. From cross-chain native token and NFT transfers to secure oracle integrations, this blog is your gateway to a unified Web3.
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Become a VIA Wizard Apprentice by learning a simple interchain spell and following this quest. Tag @VIA_Labs and #VIAWizard!
VIA LabsVIA Network’s Total Message Volume Surpasses 2M as Integrations and Ecosystem Expansion Continue
VIA Labs July 2025 Overview
VIA LabsYou don’t need to know code to have fun!
Become a VIA Wizard Apprentice by learning a simple interchain spell and following this quest. Tag @VIA_Labs and #VIAWizard!
VIA LabsVIA Network’s Total Message Volume Surpasses 2M as Integrations and Ecosystem Expansion Continue
VIA Labs July 2025 Overview
VIA Labs is a leading blockchain infrastructure provider powering the VIA Network, a secure and bridgeless multi-layered system enabling cross-chain communication. The VIA Labs Blog offers a deep dive into the technology, strategies, and innovations behind the VIA Network. Here, we share practical developer guides, and ecosystem updates designed to help developers, enthusiasts, and innovators build the next generation of interoperable dApps. From cross-chain native token and NFT transfers to secure oracle integrations, this blog is your gateway to a unified Web3.
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The blockchain ecosystem is a fragmented landscape, with each network operating in its own silo. This fragmentation poses significant challenges for liquidity and interoperability, especially when it comes to transferring stablecoins across different chains.
Enter Proto-USD, a protocol developed by VIA Labs as a part of Circle’s USDC Grant Program. Proto-USD extends the capabilities of Circle’s Cross-Chain Transfer Protocol (CCTP) while enabling blockchains to access USDC liquidity through Circle’s Bridged USDC Standard. Seamlessly transfer USDC across networks, unifying liquidity and simplifying user experiences.
Simply put:
For blockchain enthusiasts: Bring USDC to your blockchain!
For developers: Access liquidity from other blockchains!
For blockchains: Start on your stablecoin journey with Bridged USDC and give your community a stablecoin with multi-chain connectivity!
At inception, most blockchains lack the tooling for a flourishing ecosystem. One of the most important items for scalability is obtaining a stablestablecoin.
Blockchains need stablecoins for:
Price stability
Easy on-ramping
Chain-issued payments
Lending and borrowing
Most advanced defi protocols
Sometimes blockchains opt for stablecoins that are not backed 1:1 by fiat and carry inherent risks, resulting in liquidity shortages, depegging events, and potentially risky smart contract functions.
The best choice for blockchains to obtain a stablecoin quickly is to adopt Circle’s Bridged USDC Standard, which puts them on the correct pathway with the optionality of a potential upgrade to native USDC.
Transferring assets between blockchains isn’t like moving money between bank accounts. Blockchains are designed to be secure and self-contained, which means they don’t naturally communicate with each other. So, how are stablecoins moved from one blockchain to another?
It depends on the stablecoin provider and / or the 3rd-party bridging solution.
The two most common methods are:
Burning and minting the stablecoin between blockchains.
Locking and releasing the stablecoin between blockchains.
Circle uses an in-house solution called Cross-Chain Transfer Protocol (CCTP), which operates by natively burning and minting USDC between blockchains with native USDC issuance.
Blockchains must have native USDC issuance from Circle to potentially have CCTP routes enabled.
The first step a blockchain must take to get native USDC issuance is adopting the Bridged USDC Standard. Once bridged USDC reaches a significant supply, amount of holders, and number of app integrations, Circle and the third-party team jointly elect to securely transfer ownership of the bridged USDC token contract to Circle, allowing it to be used among Circle’s suite of Products.
To learn more about Circle’s process click here.
How can a blockchain unlock the benefits of CCTP immediately?
Proto-USD by VIA Labs provides a faster route for blockchains to leverage similar capabilities to CCTP without the wait. Blockchains gain access to seamless USDC transfers on day one of the Bridged USDC Standard being deployed through VIA Labs.
Proto-USD by VIA Labs is compatible with various types of USDC:
Native USDC: Issued directly by Circle.
Bridged USDC: Obtained through Circle’s Bridged USDC Standard contracts.
By accommodating these different forms of USDC, Proto-USD ensures that blockchains without native USDC can still participate in cross-chain liquidity. This inclusivity promotes a more connected and liquid ecosystem across multiple networks.
Proto-USD enables seamless USDC transfers across multiple chains by utilizing both Circle’s Bridged USDC Standard and Circle’s CCTP. This is achieved through sending multi-hop messages between blockchains to create one solution for developers to leverage.
Example: A user on Polygon wants to transfer USDC to Blockchain X.
Proto-USD uses CCTP to burn native USDC on Polygon and mint native USDC on Arbitrum. Then, that native USDC on Arbitrum is locked into a contract on Arbitrum. A cross-chain message is sent to Blockchain X instructing the equivalent Bridged USDC to be minted.
The multi-hop is abstracted completely. The user or integrating developer experiences a smooth transfer of liquidity.
By enabling combined value and data transfers, Proto-USD allows developers to build advanced functionalities such as:
Cross-chain staking
Lending and borrowing between chains
Efficient cross-chain swap aggregation
The phrase “Not your keys, not your crypto” is just as relevant to cross-chain messaging: “Not your keys, not your messages.” With the VIA Network’s layered security architecture, blockchain foundations have the ability to run their own validation layer allowing blockchains to take control of their message security, ensuring the highest level of protection.
Proto-USD is available now. Send your USDC or Bridged USDC between any chain in the VIA Labs network!
Give it a try:
Go to: https://bridge.protousd.com/
Select a chain: Choose your source and destination chains.
Transfer Seamlessly: Bridge your USDC.
Want additional chains to be connected? The process is easy. Connect VIA Labs with that chain or a large project on that given chain. We’ll get it up and running in no time.
Integrate Proto-USD into your dApps effortlessly using the uniform ProtoGateway contracts available across all supported chains. Adding cross-chain USDC transfers is straightforward and efficient.
Get Started:
Access Documentation: Visit our developer documentation for guides and code examples.
Join the Community: Connect with other developers on our Discordserver.
Contribute: Share your feedback and help shape the future of Proto-USD.
Start building today and provide your users with a seamless cross-chain experience!
Enhance your blockchain ecosystem by integrating Proto-USD and provide immediate access to unified USDC liquidity.
How to Integrate:
Contact VIA Labs: Reach out to our team in Discord to begin the integration process.
Full Contract Onboarding: The entire process is hands off. VIA Labs deploys the contracts for you. No hassle!
Onboard your Community: Do what you do best. The front-end is provided by VIA Labs or you can build your own.
Join the growing network of blockchains unified by Proto-USD and offer your community the benefits of seamless liquidity and interoperability.
The blockchain ecosystem is a fragmented landscape, with each network operating in its own silo. This fragmentation poses significant challenges for liquidity and interoperability, especially when it comes to transferring stablecoins across different chains.
Enter Proto-USD, a protocol developed by VIA Labs as a part of Circle’s USDC Grant Program. Proto-USD extends the capabilities of Circle’s Cross-Chain Transfer Protocol (CCTP) while enabling blockchains to access USDC liquidity through Circle’s Bridged USDC Standard. Seamlessly transfer USDC across networks, unifying liquidity and simplifying user experiences.
Simply put:
For blockchain enthusiasts: Bring USDC to your blockchain!
For developers: Access liquidity from other blockchains!
For blockchains: Start on your stablecoin journey with Bridged USDC and give your community a stablecoin with multi-chain connectivity!
At inception, most blockchains lack the tooling for a flourishing ecosystem. One of the most important items for scalability is obtaining a stablestablecoin.
Blockchains need stablecoins for:
Price stability
Easy on-ramping
Chain-issued payments
Lending and borrowing
Most advanced defi protocols
Sometimes blockchains opt for stablecoins that are not backed 1:1 by fiat and carry inherent risks, resulting in liquidity shortages, depegging events, and potentially risky smart contract functions.
The best choice for blockchains to obtain a stablecoin quickly is to adopt Circle’s Bridged USDC Standard, which puts them on the correct pathway with the optionality of a potential upgrade to native USDC.
Transferring assets between blockchains isn’t like moving money between bank accounts. Blockchains are designed to be secure and self-contained, which means they don’t naturally communicate with each other. So, how are stablecoins moved from one blockchain to another?
It depends on the stablecoin provider and / or the 3rd-party bridging solution.
The two most common methods are:
Burning and minting the stablecoin between blockchains.
Locking and releasing the stablecoin between blockchains.
Circle uses an in-house solution called Cross-Chain Transfer Protocol (CCTP), which operates by natively burning and minting USDC between blockchains with native USDC issuance.
Blockchains must have native USDC issuance from Circle to potentially have CCTP routes enabled.
The first step a blockchain must take to get native USDC issuance is adopting the Bridged USDC Standard. Once bridged USDC reaches a significant supply, amount of holders, and number of app integrations, Circle and the third-party team jointly elect to securely transfer ownership of the bridged USDC token contract to Circle, allowing it to be used among Circle’s suite of Products.
To learn more about Circle’s process click here.
How can a blockchain unlock the benefits of CCTP immediately?
Proto-USD by VIA Labs provides a faster route for blockchains to leverage similar capabilities to CCTP without the wait. Blockchains gain access to seamless USDC transfers on day one of the Bridged USDC Standard being deployed through VIA Labs.
Proto-USD by VIA Labs is compatible with various types of USDC:
Native USDC: Issued directly by Circle.
Bridged USDC: Obtained through Circle’s Bridged USDC Standard contracts.
By accommodating these different forms of USDC, Proto-USD ensures that blockchains without native USDC can still participate in cross-chain liquidity. This inclusivity promotes a more connected and liquid ecosystem across multiple networks.
Proto-USD enables seamless USDC transfers across multiple chains by utilizing both Circle’s Bridged USDC Standard and Circle’s CCTP. This is achieved through sending multi-hop messages between blockchains to create one solution for developers to leverage.
Example: A user on Polygon wants to transfer USDC to Blockchain X.
Proto-USD uses CCTP to burn native USDC on Polygon and mint native USDC on Arbitrum. Then, that native USDC on Arbitrum is locked into a contract on Arbitrum. A cross-chain message is sent to Blockchain X instructing the equivalent Bridged USDC to be minted.
The multi-hop is abstracted completely. The user or integrating developer experiences a smooth transfer of liquidity.
By enabling combined value and data transfers, Proto-USD allows developers to build advanced functionalities such as:
Cross-chain staking
Lending and borrowing between chains
Efficient cross-chain swap aggregation
The phrase “Not your keys, not your crypto” is just as relevant to cross-chain messaging: “Not your keys, not your messages.” With the VIA Network’s layered security architecture, blockchain foundations have the ability to run their own validation layer allowing blockchains to take control of their message security, ensuring the highest level of protection.
Proto-USD is available now. Send your USDC or Bridged USDC between any chain in the VIA Labs network!
Give it a try:
Go to: https://bridge.protousd.com/
Select a chain: Choose your source and destination chains.
Transfer Seamlessly: Bridge your USDC.
Want additional chains to be connected? The process is easy. Connect VIA Labs with that chain or a large project on that given chain. We’ll get it up and running in no time.
Integrate Proto-USD into your dApps effortlessly using the uniform ProtoGateway contracts available across all supported chains. Adding cross-chain USDC transfers is straightforward and efficient.
Get Started:
Access Documentation: Visit our developer documentation for guides and code examples.
Join the Community: Connect with other developers on our Discordserver.
Contribute: Share your feedback and help shape the future of Proto-USD.
Start building today and provide your users with a seamless cross-chain experience!
Enhance your blockchain ecosystem by integrating Proto-USD and provide immediate access to unified USDC liquidity.
How to Integrate:
Contact VIA Labs: Reach out to our team in Discord to begin the integration process.
Full Contract Onboarding: The entire process is hands off. VIA Labs deploys the contracts for you. No hassle!
Onboard your Community: Do what you do best. The front-end is provided by VIA Labs or you can build your own.
Join the growing network of blockchains unified by Proto-USD and offer your community the benefits of seamless liquidity and interoperability.
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