Ava Labs and the Filecoin Foundation have launched a native cross-chain data bridge between Avalanche C-Chain and Filecoin, powered by the Filecoin Virtual Machine (FEVM). This integration combines Avalanche’s fast, scalable execution with Filecoin’s decentralized storage layer, creating a modular foundation for verifiable, enterprise-grade data infrastructure.

As enterprise and financial institutions increasingly build on Avalanche, demand grows for reliable storage solutions that offer transparency, compliance, and long-term availability. Filecoin complements Avalanche by providing a decentralized archival layer designed to meet these needs without compromising speed or scalability.

“This integration brings together Avalanche and Filecoin to build interoperable infrastructure capable of powering high-value use cases,” said Clara Tsao, Founding Officer of the Filecoin Foundation. “It’s a key step in evolving the internet’s architecture to meet today’s growing data demands.”

How It Works, and Why It Matters

The Avalanche–Filecoin bridge, developed by FIL-B and FilOz, enables smart contracts on Avalanche C-Chain to offload data to Filecoin for decentralized storage, while maintaining onchain access, verifiability, and low-latency performance. Here's what the flow looks like:

• Data is generated on Avalanche: Onchain applications trigger storage through smart contracts.

• Data is sent to Filecoin for archival: Ideal for logs, KYC files, or historical records that don’t require frequent access.

• Cryptographic proofs verify integrity: Filecoin’s CID commitments and retrieval proofs ensure the data is stored unaltered, providing a tamper-proof audit trail.

• Proofs are relayed back to Avalanche: Onramp contracts confirm successful storage, with payment settled natively on Avalanche.

This architecture does more than streamline storage, it introduces key functionality for developers and institutions building at scale. With cryptographic proofs continuously verifying data integrity, builders gain confidence that stored information remains traceable and tamper-proof. Compliance-related data, such as audit logs or KYC records, can be retained off-chain in an immutable format, easing the burden on Avalanche’s execution layer while meeting regulatory requirements. 

At the same time, teams can significantly reduce storage costs by offloading archival or low-access data to Filecoin, preserving Avalanche’s performance for real-time operations. Because the design is modular and chain-agnostic, developers can stay within Avalanche’s high-speed environment while tapping into Filecoin’s decentralized storage network, enabling powerful multi-chain applications without compromising user experience or security.

“This collaboration with Filecoin introduces a modular framework for verifiable, cost-efficient data storage that complements Avalanche’s high-performance execution environment,” said Clif Yeo, Head of Singapore at Ava Labs. “It advances the tooling needed to build scalable, multi-chain applications with enterprise-grade reliability.”

This initiative strengthens the foundation for cross-ecosystem collaboration and signals a shared commitment to building performant, decentralized infrastructure that’s ready for real-world scale.

Check out the demo and GitHub library here.