Terms of Service

Last updated: October 22, 2026

These Terms of Service ("Terms") govern your access to and use of the Vaulken cloud platform ("Service") operated by Vaulken ("we", "us", "our"). By creating an account or using the Service, you agree to these Terms.

1. Definitions

  • "Service" means the Vaulken cloud platform: the MCP server, the dashboard, the APIs and related services hosted at vaulken.dev.
  • "Customer", "you", "your" means the individual or entity that registers for and uses the Service.
  • "Customer Data" means the files and content you make available to the Service through a Vault, and anything the Service writes to your bucket on your behalf.
  • "Workspace" means an isolated tenant within the Service.
  • "Vault" means the connection between a Workspace and a bucket you own.
  • "Bucket" means the S3-compatible storage you provision and control with your own provider. Every Vault is backed by your own bucket. Vaulken does not host Customer Data files.
  • "MCP URL" means a unique URL that grants an AI client access to a Vault through the Model Context Protocol, with either read-write or read-only permissions.

2. Account Registration

You create an account with an email address and a password, or by signing in with Google. You are responsible for keeping your credentials confidential and for all activity under your account. If you sign in with Google, your account is linked to your Google email address. Notify us at contact@vaulken.dev as soon as you suspect unauthorized access.

3. Service Description

Vaulken connects AI assistants to the files in your bucket through the Model Context Protocol (MCP). The Service includes:

  • File operations (read, list, write, patch, move, delete, version history) through MCP tools
  • Full-text and semantic search over the files the Service has indexed
  • Text extraction from PDFs and images, so that your AI can read them
  • A dashboard to manage Vaults, MCP URLs, uploads and your account
  • An OAuth 2.0 authorization server for MCP clients

4. Customer Data Ownership

You keep all rights, title and interest in your Customer Data. We claim no ownership over your files. We access Customer Data only to provide the Service as described in these Terms and in our Privacy Policy.

5. Data Processing and AI

  • No model training. We do not use Customer Data to train, fine-tune or improve any machine learning model, ours or a third party's.
  • Search indexing. The Service reads your files to build search indexes (a trigram index for full-text search and vector embeddings for semantic search). These indexes cannot be used to reconstruct your original text.
  • AI extraction. PDF pages and images are sent to our AI provider to extract text. The extracted text is written back to your bucket, next to the source file, so that it is not processed again. The provider does not keep the content.
  • No file content in our database. Our database holds search indexes and file metadata (paths, sizes, content fingerprints, dates). The files themselves stay in your bucket.

6. Your Bucket

Every Vault is backed by a bucket you own. You provide the endpoint, region, bucket name and credentials, and you pay your storage provider directly. We store the secret key in encrypted form using a key management service. You can revoke our access at any time by rotating or deleting the credentials with your provider.

Deleting a Vault removes its configuration, its encrypted credentials and its search indexes from our systems. Nothing is removed from your bucket, including the extraction caches the Service wrote there. If our access to a bucket is revoked, the Vault's indexes stop updating but stay in our database until you delete the Vault.

You are responsible for the configuration of your bucket, including versioning, lifecycle rules, CORS rules for dashboard uploads, and access control.

7. Plans and Limits

The Free plan and the paid plans differ by the number of Vaults, the monthly number of pages or images processed by AI extraction, and the monthly number of semantic search queries. Storage is never limited or billed by Vaulken, since files live in your bucket.

If you move from a paid plan to the Free plan, Vaults beyond the Free plan limit become read-only until you subscribe again or delete Vaults to fit the limit. Their files stay in your bucket.

8. Access and Scopes

Each Vault exposes two MCP URLs, one with read-write permissions and one with read-only permissions. You decide which URL to give to which client, and you are responsible for the clients you authorize. MCP URLs can be regenerated at any time from the dashboard, which revokes the previous ones.

9. Acceptable Use

Your use of the Service is subject to our Acceptable Use Policy.

10. Availability and Support

We aim for high availability but do not guarantee uninterrupted access. The Service is provided on a commercially reasonable efforts basis, without an SLA. We announce scheduled maintenance in advance when we can.

11. Fees and Payment

Some features require a paid subscription. Fees are billed in advance, monthly or yearly, and are non-refundable except where the law requires otherwise. We may change prices with 30 days' notice. Continued use of the Service after a price change constitutes acceptance.

12. Suspension and Termination

  • By you. You can delete your account at any time from the dashboard settings. All your Workspaces, Vaults, indexes, tokens and account data are then permanently removed. Your buckets are untouched.
  • By us. We may suspend or terminate your access if you breach these Terms or the Acceptable Use Policy, or when the law requires it. We give reasonable notice when we can.

13. Intellectual Property

The Vaulken software is open source under the MIT License, as published in its repository. The hosted Service, the Vaulken name and logo, and this website's content and documentation remain the property of Vaulken. Using the Service grants you no rights in them beyond what these Terms allow.

14. Disclaimer of Warranties

THE SERVICE IS PROVIDED "AS IS" AND "AS AVAILABLE" WITHOUT WARRANTIES OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT.

15. Limitation of Liability

TO THE MAXIMUM EXTENT PERMITTED BY LAW, VAULKEN SHALL NOT BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, OR PUNITIVE DAMAGES, OR ANY LOSS OF PROFITS, DATA, OR GOODWILL, ARISING OUT OF OR RELATED TO YOUR USE OF THE SERVICE, INCLUDING CHANGES MADE TO YOUR FILES BY AI CLIENTS YOU HAVE AUTHORIZED. OUR TOTAL LIABILITY SHALL NOT EXCEED THE AMOUNT YOU PAID US IN THE 12 MONTHS PRECEDING THE CLAIM.

16. Indemnification

You agree to indemnify and hold harmless Vaulken from any claims, losses or damages arising from your use of the Service, your Customer Data, or your breach of these Terms.

17. Modifications

We may update these Terms. We notify you of material changes by email or in the dashboard. Continued use of the Service after the changes take effect constitutes acceptance.

18. Governing Law

These Terms are governed by the laws of France. Disputes are submitted to the exclusive jurisdiction of the courts of Paris, France.

19. Contact

Questions about these Terms: contact@vaulken.dev.