Filecoin Storage Bridge


After running the ETH/Polygon storage bridges for over a year, we haven't found it to be the right model for applciation developers. Other tools have grown more popular and we recommend developers explore using them. Two great examples are and

The contracts are still live, but the storage mechanism has stopped listening to new events. Ideally, a future team could replace the centralized storage mechanism with a decentralized bridging approach. As the FVM is now available, a better path likely exists.

Ethereum & Polygon bridge to Filecoin

A fast and free harddrive for Ethereum and Polygon users. Be one of the first projects to take advantage of this scalable, permissionless, verifiable storage on our Testnet deployment! Even better, through a partnership with Polygon and Filecoin, we are able to make storage free for projects for the forseeable future.

If you are looking for the NEAR head over to the docs.

Filecoin brings many of the best parts of the IPFS stack, including verifiable data, peer-to-peer (p2p) data exchange, de-duplication, and more. We can create a more secure data storage layer for applications and their users by connecting to Filecoin storage.

When using the bridge, your users, app, or smart contract will still reference and retrieve data over IPFS. Additionally, the raw data will be available in storage contracts created with miners on the Filecoin network. The metadata for that storage is reported back to the native network (Polygon or Ethereum) as open and reusable building blocks.

Access & Permissions

Think Metamask not API keys. Wallets not accounts.

There are no accounts or API keys needed to setup and use. Your users just need an address on Ethereum or Polygon (e.g. using Metamask).

Any address can push data to Filecoin via the bridge as long as they have access to the private keys of the identity to sign their requests. We use this to verify users on the Eth/Polygon networks.

Any address pushing data must deposit a small amount of MATIC while they are pushing data. The funds remain locked for ~10 minutes, after which they are refunded to the depositing address. A user can deposit their own funds or another address can do it on their behalf. Just imagine the frictionless UIs...

Cost & payment

Today, the service is free while we continue designing and testing the reporting, proofs, and oracles needed to make the system trustless and open to everyone. This is a beta.

Funds that are deposited while a user is pushing data to Filecoin are all returned (except gas fees).

In the future, the smart contract will also pay storage bridge providers for their services through the existing deposited funds mechanism.

Ease of use

This project makes it easy for developers and end-users to get their data stored. After you check out our TOS, head over to our Basic Dapp demo and upload your first file.

Network availability

  • Polygon Mainnet
  • Polygon Mumbai
  • Ethereum Rinkeby
  • Ethereum Mainnet

Project status

Our goal is to build a self-sustaining bridge between Filecoin and every exciting blockchain. To do so, we believe that we must design the system to be decentralized, permissionless, and trustless. In practice, that means creating a system where anyone can operate a Filecoin storage bridge and be rewarded for their effort as long as they are creating verifiable outputs for users. We are working toward that vision through a series of stages, first testing the basic functionality.

Phase 1 — Permissionless data storage on Filecoin.

In this phase, we are focused on providing permissionless storage to users and applications on each of the target blockchains. Like all our technologies, we aim to make storage bridges usable and easy to understand for end-users and developers. Below, we've already got an early release for you to play with and experience the simplicity yourself!

Phase 2 — Deal reporting and indexing.

Through a collaboration with Edge and Node (the amazing team behind The Graph), Textile will provide a query-able sub-graph for indexing deals facilitated by the bridge provider system. DApps and users will be able to query Filecoin deals and IPFS CIDs to create novel workflows that respond to deal updates and on-chain actions.

Phase 3 — Decentralized bridge governance.

After battle-testing the performance and scalability of storage providers, we will focus on bridge provider incentives and decentralizing governance of each bridge. The goal here is fully decentralized bridge providers and governance. If you are interested in running a bridge provider or collaborating on governance design, get in touch here.

Key dates

  • Polygon availability - Wednesday, August 19th
  • Ethereum availability - Wednesday, October 6th

During early phases, releases and updates may be more regular. Releases during this phase are suitable for new projects, hackathons, and existing projects preparing releases that align with our production timeline. Data stored will be available over the IPFS network and stored on Filecoin through initial deal durations of one year. While the storage bridge is in beta, data will not be available permanently over IPFS and may be unavailable. Do not store personal, encrypted, or illegal data.


If you'd like to help us design or build bridge governance, join one of our regular Bridge Governance calls:


See the full terms of service (TOS) for important usage information.