S3 object storage built
for the AI era
Your data, your keys, your control.
For when every byte matters.
1TB free for 30 days · No credit card required · No egress fees

Our technology was named one of
Fast Company's 11 Next Big Things in AI & Data Innovation
And it has also been featured in
Start with storage. Build AI on top.
Storage is the foundation. Bucket Intelligence and AI Agent Toolkit will soon connect directly to your buckets, no extra infrastructure needed.
Object Storage
S3-compatible, verifiably durable object storage. Drop-in compatible with every S3 SDK and workflow, and the substrate every other capability runs on.
- 11 nines durability, verified daily
- Fully S3-compatible, no code changes needed
- No egress fees, no API request charges
$4.99 / TB / month
30-day free trial · no credit card
Bucket Intelligence
Turn any bucket into a queryable knowledge base
Powered by a built-in RAG Pipeline. Files are auto-indexed as they land in your bucket. Ask questions in plain language using your own OpenAI, Anthropic, or Cohere keys.
- Auto-indexes files in your bucket on upload
- Semantic search powered by your own LLM keys
- Supports PDF, Markdown, DOCX, HTML, and more
Included at no charge during early testing
LLM usage is billed by your provider
AI Agent Toolkit
Connect your AI tools and automations to Fil One
Pick an integration, paste a config block, and your buckets are immediately available for your AI agents to use or to trigger automations from bucket events.
- Connect AI tools and automations
- Works with your existing buckets
- No egress fees
- Revoke access any time
Available to early testers at no charge
Your existing S3 code runs here.
Fil One is fully S3-compatible. Change the endpoint URL and you're done. Every tool you already use keeps working.
import boto3, os# One line change — your endpoints3 = boto3.client("s3",endpoint_url="https://eu-west-1.s3.fil.one",aws_access_key_id=os.environ["FIL_ACCESS_KEY"],aws_secret_access_key=os.environ["FIL_SECRET_KEY"],region_name="eu-west-1",)# Everything else stays exactly the sames3.upload_file("model.bin", "my-bucket", "models/v2/model.bin")url = s3.generate_presigned_url("get_object",Params={"Bucket": "my-bucket", "Key": "models/v2/model.bin"},ExpiresIn=3600,)
Frequently asked questions
Each dataset is assigned a unique digital fingerprint (CID) at upload, creating a verifiable record of its contents. The system then automatically checks your data on a recurring basis (about every 24 hours) to confirm that the data still matches that original fingerprint, ensuring nothing has been altered.
The S3-compatible API means anything built for AWS S3 works here too. Point your SDK or CLI at our endpoint and authenticate with your API keys.
Security comes first in the S3-compatible design: setup and migration stay simple, and buckets are private by default. Public access with full S3 parity is coming soon.
Read Fil One docs, access the app to get started with no code required, or talk to someone on our team to get started.
Built for large-scale storage needs, including AI and data-intensive workloads, multi-cloud strategies, audit-sensitive data, and long-term retention.
Encryption is industry-standard, with per-object data encryption keys that protect your data regardless of which provider it's stored with. SOC 2 Type II and ISO 27001 certifications are actively in progress. Reach out to security@fil.one if you'd like to be notified when those finalize, or have other questions about security.
After you create an account and provision your first bucket, migrating to Fil One is straightforward with our S3-compatible interface. Integrate directly into your codebase with any S3-compatible SDK, or migrate your data with a single AWS CLI command.
Enterprise teams who want more hands-on support can work directly with our team through every step of migration. Reach out at sales@fil.one to get started.
Every bucket becomes a queryable knowledge base once Bucket Intelligence is connected. Files are auto-indexed as they land, powered by a built-in RAG pipeline. Ask questions in plain language and get answers grounded in your actual data.
Bring your own LLM API keys (OpenAI, Anthropic, or Cohere), so AI costs go directly to your provider. Early testers get access at no charge.
The AI Agent Toolkit lets you connect your AI tools and automations to Fil One. Pick an integration, paste a config block, and your buckets are immediately available for your AI agents to use or to trigger automations from bucket events.
It works with your existing buckets, no new setup or credentials needed. Access can be revoked at any time, and there's no cost for early testers.
Not required. Object Storage is the foundation every Fil One account starts with, and it works great on its own as a fully S3-compatible store. Both additional products connect directly to your existing buckets when they launch, with no data migration needed.
Egress is any data transferred out of your bucket: to the internet, to another cloud, or to your own servers. With Fil One, all egress is free, always, at any scale.
No minimum. Store as little or as much as you need, and pay only for what you use, billed per TB per month.
Billing is $4.99 per TB stored per month, with no fees for egress or API operations. Your bill is the amount of data you store, multiplied by the rate.
Yes. Teams with predictable storage needs can choose reserved capacity plans on 1, 3, or 5-year terms with volume discounts. Contact sales to get a quote.
It depends on the bucket region you choose. We currently offer an EU region (France) and a US region (Michigan) launching soon, with more regions on the way.
Yes. The trial includes 1 TB free for 30 days, with no credit card required to start.
Filecoin is a distributed storage network launched in 2020, designed to make data portable, verifiable, and resilient by default.
Instead of relying on a single proprietary vendor, Filecoin uses open protocols and an open market to store data with a global network of independent providers, helping reduce single points of failure and deliver true multi-cloud durability.
One network. One record. One less thing to worry about.
Try Fil One for 30 days. 1 TB included, no credit card required. Or talk to our team about enterprise pricing or migrating your existing storage today.