A reliable way to upload public data onto Filecoin and pin it to IPFS.

Store your public data and guarantee it is available to everyone around the world. Our technology will restore lost data and guarantee data replication.

Estuary.tech is a demonstration of what an Estuary node can do. Users of this Estuary node have pinned 0 (0 Bytes) root level CIDs to IPFS. To ensure the data is permanently available, our node automatically replicates the data 6 times onto the Filecoin Network. So far 0 storage deals were successful and that equates to 0 Bytes of sealed data.

This node makes storage deals against 0 decentralized storage providers and growing. Storage providers who are on our main Estuary Node's list have graciously accepted all data as it comes their way, which really helps us test and improve the Filecoin network. When this node successfully stores data, any user of this node can verify their CID is on chain by visiting the verify page.

API documentation

Are you a developer? Use CURL or our REST API to upload data to our Estuary node in any programming language.

Run your own Estuary node

Want to try running an Estuary node? Estuary is completely open source, please take our code!

Analytics, collaborations, and logs

Want to see the performance data for this Estuary node? Want to see which storage providers we work with?

Support us

Follow the Application Research Group and Estuary on Twitter.

Provable and verifiable storage

All storage has an immutable content address so you always know what you're getting. All deals have receipts before and after getting on chain.

Unlimited uploads

For now, there is no limit to how much data a user can upload. For each file there is a 32 GiB max size.

Retrievable from any gateway

Data stored with Estuary can be retrieved from any IPFS gateway on the internet.


Check our FAQ for answers to your questions

Give feedback

Do you have questions about Estuary? Ask your question using this form, everyone on the team will see it.

Open source

Check out our repositories on GitHub to contribute to our tools to use IPFS, Filecoin and Libp2p.


Filecoin is an open-source cloud storage marketplace, protocol, and incentive layer.

Application Research Group

This project is maintained by the Application Research Group.


curl -X POST https://api.estuary.tech/content/add -H "Authorization: Bearer YOUR_API_KEY" -H "Accept: application/json" -H "Content-Type: multipart/form-data" -F "data=@PATH_TO_FILE"


lotus client retrieve --miner MINER_ID DATA_CID OUTPUT_FILE_NAME

Modify this website

This website is open source. You can make contributions here.

Get started

Want to follow a step by step guide to learn how to use Estuary? Try our tutorial.