1. Acceptance of Terms & Definitions

By creating an account with or otherwise using the Service (defined below), you ("the User") agree to be bound by these Terms of Service ("Terms"). If you do not agree, do not use the Service.

Provider. The Service is provided by Kagura AI, Inc. (Kagura AI 株式会社), Miyamasuzaka Building 609, 2-19-15 Shibuya, Shibuya-ku, Tokyo, Japan. Kagura AI, Inc. is also the data controller identified in the Privacy Policy.

Definitions. In these Terms, the following words have the meanings set out below:

"We", "our", "us" means the provider above, Kagura AI, Inc.
"the Service" means the Kagura AI Cloud Edition that we provide. The Kagura AI Cloud Edition is provided on the kagura-ai.com domain (including its subdomains, e.g. memory.kagura-ai.com) and includes its web interface, API, and related features.
"User" (or "you") means any individual or entity that accesses or uses the Service.
"Content" means any information, text, data, images, or other material displayed, transmitted, or stored on the Service.
"User Content" means Content you store, post, transmit, or share through the Service (including memories, contexts, tags, and metadata).
"OSS edition" means the open-source edition of Kagura AI published at github.com/kagura-ai/memory-cloud.

Scope — cloud edition only. These Terms and our Privacy Policy apply only to the Service (the cloud edition). The OSS edition is not governed by these Terms or our Privacy Policy; for the OSS edition, please follow its page above.

Eligibility. You must be at least 16 years old to use the Service. Where your local law sets a higher threshold for contract capacity or data-processing consent, you must meet that threshold. By using the Service, you represent that you meet the applicable requirement.

Account. You are responsible for maintaining the confidentiality of your account credentials and for every action taken under your account. Notify us promptly if you suspect unauthorized access.

2. Access & Signup Gating

We may limit new registrations to pre-approved people (a signup gate). When this is enabled:

Accounts that have not been approved cannot register, and a page explaining the restriction is shown.
Existing accounts continue to work normally.
Approval is tracked by the permanent identification number that GitHub or Google assigns to your account, so changing your username does not affect your access.

3. Ways to Obtain Access

Access to the Service is granted through one of the following routes:

Trial plan (invite-based, free). You may request an invitation; when granted, you can register and use the Service within the Trial plan's limits at no charge. Invitations are issued at our discretion and may take time when demand is high.
Paid subscription (Starter / Pro). A monthly subscription as described under "Plans, Subscription & Billing" grants access at the corresponding plan tier.
Enterprise agreement. Custom terms, quotas, and support are agreed in an individual contract; where that contract conflicts with these Terms, the contract prevails.

GitHub matters. Activity on GitHub (the repository, Issues, use of your GitHub account, and similar) is outside the scope of these Terms; for anything GitHub-related, please follow github.com/kagura-ai/memory-cloud.

4. Service Description

The Service provides:

Memory storage — a platform for storing, organizing, and retrieving the memories and knowledge that come out of your work with AI.

Multi-platform integration — connect through the standard AI-tool connection protocol (Model Context Protocol, MCP) or a programmatic interface (REST API), from Claude, ChatGPT, Cursor, Gemini, and other MCP-compatible AI tools.

Team collaboration — workspaces where each member has a role (owner / admin / member / viewer) and access can be separated per project (context).

API access — a connection that lets your own programs read and write your User Content.

Beta / preview features. Features labeled "coming soon", "beta", or "preview" (including plans marked 準備中) may change, be delayed, or be withdrawn, and are provided as-is while so labeled.

Interruption and changes to the Service. We may, at our sole discretion and without prior notice to users, temporarily or permanently interrupt, change, discontinue, or restrict features of the Service. In such cases, we accept no liability whatsoever to users or third parties (applied to the fullest extent permitted by law).

Advertising. You understand and accept that the Service may include advertising of any kind, and that we or our partners may display such advertising on the Service. The form and extent of advertising on the Service may be changed by us at any time. Cookies used for advertising are described in the Privacy Policy.

5. User Responsibilities & Prohibited Conduct

Lawful use. Use the Service only for lawful purposes and in compliance with applicable laws.

No harmful content. Do not use the Service to store or distribute spam, malware, child sexual abuse material, content inciting violence, or other material prohibited by applicable law.

No other person's data without a basis. If you store personal data about third parties, you are responsible for having a lawful basis to do so (consent, contract, etc.) and for responding to those individuals' rights requests.

Account security. Keep your password and other credentials secret; enable two-factor authentication (MFA) where offered; and notify us if you suspect unauthorized access.

No resale. Do not resell, sublicense, or commercially redistribute access to the Service without our written agreement (an Enterprise agreement may provide otherwise). This does not restrict anything the open-source license permits for the OSS edition.

In addition, when accessing or using the Service you must not:

Access, use, or tamper with non-public areas of the Service or of our or our partners' systems.
Remove, circumvent, disable, damage, or interfere with any security or authentication measure that prevents, prohibits, or restricts access to or use of the Service.
Probe, scan, or test the vulnerability of any system or network without our prior written permission.
Access or search the Service by any means, automated or manual, other than the publicly available interfaces we provide (the web interface, MCP, REST API, and similar). Crawlers such as search engines are permitted only if they correctly identify themselves in the user-agent, comply with robots.txt, and state a contact address; scraping the Service without our prior consent is prohibited.
Forge or tamper with transmission information or identifiers, or use the Service to send information that is forged, fraudulent, or falsely sourced.
Upload, post, email, transmit, or publish any code, program, file, or material that disrupts or interferes with the Service, its servers or network, or other users' access — including transmitting viruses, overload attacks, spam attacks, and mail bombs.
Use the Service for spamming of any kind, including unsolicited or unauthorized advertising, junk mail, bulk mail, chain letters, pyramid schemes, or other solicitations.
Use sharing features to publish to other users Content that is unlawful, threatening, violent or cruel, harassing, defamatory, libelous, fraudulent, obscene, or invasive of another person's privacy.
Store or share Content that infringes a third party's patent, utility-model, trademark, copyright, or other rights.
Decode, decompile, disassemble, modify, or reverse-engineer any part of the Service whose source code is not published (except to the extent permitted by the open-source license).
Copy, lend, lease, resell, sublicense, distribute, or transfer any right or item granted to you by us without our permission.
Obtain or attempt to obtain, without proper authority, personal information (including contact details) of other users, of us, or of our partners.
Engage in any other conduct that we, at our discretion, deem inappropriate.

6. AI-Generated Content & Accuracy

The Service uses AI (large language models) and statistical ranking to organize, summarize, link, deduplicate, and retrieve your User Content. AI output is an estimate based on probabilities, not a calculation that always returns the same correct answer:

Summaries, links, and consolidations may contain errors or omissions, and search may rank results imperfectly. Verify important information against the original source before relying on it.
AI output does not constitute professional advice (legal, medical, financial, or otherwise).
Where automatic consolidation has modified an item of User Content, source references (where available) let you trace back to the original input; we recommend keeping authoritative records outside the Service for anything critical.

7. Feedback

You may submit feedback, feature requests, opinions, or suggestions about the Service entirely at your discretion. If you do, you grant us a non-exclusive, perpetual, royalty-free right to use them for any purpose and in any manner, without obligation or compensation to you. Feedback never includes your User Content unless you explicitly include it.

8. Data & Privacy

Please refer to our Privacy Policy for how we handle your data. Highlights:

Your content is yours. You retain ownership of all User Content. You grant us only the processing license needed to operate the Service on your behalf.

We do not train on your content. We do not use your User Content to train AI models.

You can export and delete. You can export your User Content and request account deletion at any time.

GDPR. If you are in the EU / UK, the Privacy Policy describes your GDPR rights (access, rectification, erasure, portability, restriction, objection), our legal bases under Art. 6, and how Enterprise users can obtain a Data Processing Agreement under Art. 28.

9. Plans, Subscription & Billing

Pricing. Each plan's price, quotas, and features are published on the pricing page; please check that page for the current details. These Terms do not state prices — what is published on the pricing page applies.

Plan types. The available plans are Trial (invite-based, free, no payment information required), Starter / Pro (monthly subscriptions), and Enterprise (individual agreement).

Payment. Paid plans are billed monthly in advance by credit card, processed by our payment processor (Stripe). Japanese consumption tax is added for users in Japan. We do not store full card numbers.

Feature availability. Kagura Memory Worker is available on the Starter plan and above; Kagura Memory Cloud is available on all plans including Trial.

Cancellation. You may cancel your paid subscription at any time, effective at the end of the current billing period. Access continues to the end of the paid period.

No refunds. To the fullest extent permitted by law, fees already paid are non-refundable regardless of the reason your use ends — including cancellation or termination by you, or suspension or termination by us under "Termination". We do not pro-rate or provide cash settlement for partial periods, and no refund is given even where we terminate. This does not affect any statutory consumer-protection rights (including any mandatory withdrawal rights in your jurisdiction).

Price & quota changes. We may adjust plan prices or quotas with at least 30 days' advance notice. Price changes take effect from your next billing period after the notice period; if you do not accept a price increase, you may cancel before it takes effect.

Downgrade & lapse. If a paid plan lapses or is downgraded, User Content above the new plan's quota is handled per the retention rules in the Privacy Policy (a grace period before deletion).

10. Third-Party Services & Links

The Service interoperates with third-party services you choose to use — MCP clients (Claude, Cursor, Gemini, Codex, and others), OAuth sign-in providers (GitHub, Google), LLM providers invoked by features you use, and links to external sites. Those services are governed by their own terms and privacy policies; we are not responsible for their availability, behavior, or how they handle data once you send it to them. Connecting a third-party client to your account is your decision — review what that client does with retrieved User Content.

11. Content Moderation

You are responsible for the User Content you store (see "User Responsibilities & Prohibited Conduct"). We have the right — but not the obligation — to monitor, remove, or refuse to distribute Content on the Service, and to suspend offending accounts, at any time, for any reason, and without prior notice. Where possible we will endeavor to notify you and give you an opportunity to respond. You may report abusive content to contact@kagura-ai.com.

We have the right to access, retain, and disclose information, in accordance with applicable law, where we deem it necessary to: (a) comply with applicable laws, legal process, or governmental requests; (b) enforce these Terms; (c) detect, prevent, or address fraud, security, or technical issues; (d) protect the rights, property, or safety of us, our users, or the public; or (e) respond to user support requests. Disclosure of personal data follows the "Disclosure of Personal Data" section of the Privacy Policy.

12. Our Proprietary Rights

Our rights. The Service contains Content provided by us and our licensors that is protected by the copyright, trademark, and other laws of Japan and other countries. Except for User Content, all right, title, and interest in and to the Service are the exclusive property of us and our licensors. Nothing in these Terms grants you any right to use our trademarks, logos, domain names, or other distinctive brand features. The names "Kagura AI" and "Kagura Memory Cloud", the logo, and associated trademarks remain the property of the provider.

The Service software. The Kagura AI open-source codebase is provided under its public license. The terms of use and privacy handling for the OSS edition are separate from these Terms and our Privacy Policy; please follow github.com/kagura-ai/memory-cloud.

User Content. You retain all rights to your User Content. You grant us a worldwide, non-exclusive, royalty-free license to host, copy, transmit, display, and process your User Content solely to the extent necessary to provide the Service to you and to honor your requests (for example, search, export, sharing you explicitly set up).

13. Copyright Infringement

We respect the intellectual property rights of others and require our users to do the same. We respond to proper notices of alleged copyright infringement in accordance with applicable law. If you believe User Content infringes your copyright, please provide us with the following:

(a) a physical or electronic signature of the copyright owner or a person authorized to act on the owner's behalf;
(b) the name and a description of the copyrighted work claimed to have been infringed;
(c) the location on the Service of the material claimed to be infringing, with a description sufficient to locate it;
(d) your contact information, including address, telephone number, and email address;
(e) a statement that you have a good-faith belief that the use is not authorized by the copyright owner, its agent, or the law;
(f) a statement, under penalty of perjury, that the information in your notice is accurate and that you are the copyright owner or authorized to act on the owner's behalf.

Contact for notices of alleged copyright infringement: contact@kagura-ai.com (please put "Copyright Infringement Notice" in the subject line).

We may remove Content we believe to be infringing at our sole discretion and without prior notice. Where we determine that a user is a repeat infringer, we may terminate that user's account at our sole discretion.

14. Disclaimer of Warranties & Limitation of Liability

"As is" (disclaimer). You acknowledge that the Service is provided, in principle, "as is" and "as available". To the fullest extent permitted by law, we and our subsidiaries, affiliates, officers, employees, agents, suppliers, content providers, and licensors make no warranties of any kind, express or implied, including warranties of merchantability, fitness for a particular purpose, and non-infringement. We do not warrant the security, availability, accuracy, timeliness, reliability, or completeness of the Service or any Content, and accept no liability for any failure to delete, store, or transmit Content or other communications, or for any harm to your computer system, loss of data, or other harm arising from your access to or use of the Service. We do not warrant that the Service will meet your requirements or be provided uninterrupted, secure, or error-free. Your access to and use of the Service and any Content is at your own risk.

Limitation of liability. To the fullest extent permitted by law, in no event will we or our subsidiaries, affiliates, officers, employees, agents, suppliers, content providers, or licensors be liable for any direct, indirect, incidental, special, consequential, or punitive damages — including lost profits, loss of data, the cost of procuring substitute goods or services, or loss of goodwill or other intangible property — arising from the following. This exclusion applies to any claim based on warranty, contract, tort, strict liability, negligence, or any other legal or equitable theory:

(a) your access to or use of, or inability to access or use, the Service;
(b) any defamatory, offensive, or illegal conduct of any other user of the Service or any third party;
(c) bugs, computer viruses, trojan horses, or the like;
(d) any Content obtained from the Service;
(e) unauthorized access to or alteration of information or Content you transmitted.

Consumer-law reservation. The foregoing does not limit or exclude any liability that cannot be limited or excluded under applicable consumer-protection law (including Japan's Consumer Contract Act) — for example, liability for our wilful misconduct or gross negligence, or for loss of life or personal injury. EU / UK residents retain their statutory consumer-protection rights.

15. Indemnity

You will defend us and our affiliates, officers, employees, agents, and licensors against any third-party claim or demand arising out of or relating to your access to or use of the Service or any Content, your breach of these Terms, or any Content you provide, post, transmit, modify, or make public through the Service, and will indemnify them for resulting damages (including reasonable attorney and accounting fees).

If a User causes damage to us, the Service, or any individual, company, or other third party related to them, that User bears all responsibility for it and is liable to compensate the full amount of the damages, including reasonable attorney fees.

This obligation does not apply to consumers where and to the extent applicable consumer-protection law does not permit it, and is proportionate to your degree of fault.

16. Termination

By you. You may delete your account at any time from account settings or by contacting us.

By us. We may suspend or terminate your access for violation of these Terms, for non-payment of a paid tier, or where required by law. Such suspension or termination may occur without prior notice. Where possible we will endeavor to give prior notice and an opportunity to cure, but we are not obligated to do so.

Effect. On termination your access ceases and your personal data is deleted on the schedule described in the Privacy Policy (except where we are legally required to retain it, e.g. tax records). Regardless of the reason for termination, fees already paid are non-refundable (see "No refunds" under "Plans, Subscription & Billing").

Survival. The following sections, and any obligations that by their nature should survive, continue after termination: "Our Proprietary Rights", "Disclaimer & Limitation of Liability", "Indemnity", "Governing Law & Jurisdiction", and "General Terms".

17. Governing Law & Jurisdiction

Language. The Japanese version of these Terms is the authoritative text and prevails over any translation, including this English version.

Governing law & forum. These Terms and any activity arising under them are governed by the laws of Japan, regardless of conflict-of-law principles. Any suit, claim, dispute, or proceeding arising out of or relating to the Service will be brought exclusively in the Tokyo District Court of Japan as the agreed court of first instance; you consent to its venue and jurisdiction and waive any objection of forum non conveniens.

Mandatory law. The governing-law and jurisdiction provisions of this section apply to the fullest extent permitted by law. Where the law of your country or region of residence contains mandatory provisions that cannot be excluded by agreement, those provisions apply only to that limited extent; in all other respects, this section governs.

18. General Terms

Export controls. You must comply with applicable export-control and sanctions laws (including those of Japan) and may not use the Service if doing so is prohibited under those laws.

Severability. If any provision of these Terms is held invalid or unenforceable, the remaining provisions remain in full force, and the invalid provision is replaced by a valid one that most closely reflects its intent.

No waiver. Our failure to exercise or enforce any right or provision of these Terms is not a waiver of our right to do so later.

Assignment. You may not assign these Terms or your account without our consent. We may assign these Terms in connection with a merger, acquisition, or sale of assets, with notice to you (see also "Disclosure of Personal Data" in the Privacy Policy).

Entire agreement. These Terms, the Privacy Policy, and (where applicable) an Enterprise agreement constitute the entire agreement between you and us regarding the Service and supersede all prior agreements and discussions regarding the Service.

19. Changes

We may update these Terms from time to time. When we do we update the "Last updated" date at the top of the page. Material changes will be announced in-product and (where appropriate) by email. Continued use of the Service after the effective date of a change constitutes acceptance of the new Terms. If you do not accept a material change, you may delete your account before the effective date.

Contact

Questions about these Terms: contact@kagura-ai.com (for privacy requests specifically, see the Privacy Policy).