NebulaGraph Cloud Terms of Service
Last Updated: [May 28th, 2026]
Applicable Region: United States
1.Acceptance of These Terms
These Terms of Service (“Terms”) govern your access to and use of NebulaGraph Cloud, related software, APIs, websites, developer tools, and hosted services (collectively, the “Service”) provided by VESOFT Company Limited (“NebulaGraph,” “we,” “our,” or “us”).
By accessing or using the Service, creating an account, clicking “I Agree,” or otherwise using the Service, you agree to be bound by these Terms.
If you use the Service on behalf of an organization or entity, you represent that you have authority to bind that organization to these Terms.
If you do not agree to these Terms, you may not use the Service.
If you enter into a separately negotiated written agreement with NebulaGraph governing the Service (“Enterprise Agreement”), that agreement will control to the extent of any conflict with these Terms.
2.The Service
NebulaGraph provides a cloud-hosted graph database platform and related services, including hosted database infrastructure, APIs, developer tools, technical support, updates, documentation, and related functionality.
The Service may be offered through:
• subscription plans;
• usage-based billing;
• free-tier services;
• promotional credits; or
• enterprise subscriptions.
Features, usage limits, pricing, and service functionality may vary depending on the selected service plan.
NebulaGraph may modify, update, improve, or discontinue portions of the Service from time to time.
3.Accounts and Acceptable Use
You are responsible for:
• maintaining accurate account information;
• safeguarding account credentials, API keys, and access tokens; and
• all activities conducted through your account.
You agree to use the Service only in compliance with these Terms and applicable laws.
You shall not:
• reverse engineer or attempt to obtain source code of the Service;
• interfere with the integrity, security, or performance of the Service;
• access the Service through unauthorized automated means;
• upload malware or malicious code;
• use the Service for unlawful, harmful, fraudulent, or infringing activities;
• attempt to gain unauthorized access to systems or accounts;
• circumvent technical or usage restrictions;
• use the Service to develop competing products or services;
• resell, sublicense, lease, or commercially exploit the Service except as authorized by NebulaGraph.
NebulaGraph may monitor usage of the Service to:
• maintain platform security and operational integrity;
• prevent abuse, fraud, or unauthorized access;
• verify compliance with applicable service plans or usage limits; and
• support billing, analytics, and product optimization.
NebulaGraph may suspend or restrict access to the Service if your use violates these Terms, creates security risks, negatively impacts the Service, or exposes NebulaGraph or other users to liability.
4.Subscription Plans, Fees, and Billing
Certain portions of the Service require payment of subscription or usage-based fees.
You agree to pay all applicable:
• subscription fees;
• usage charges;
• overage fees; and
• applicable taxes.
Unless otherwise stated:
• subscriptions automatically renew;
• fees are non-refundable except as required by law; and
• overdue amounts may incur interest at 1.5% per month or the maximum rate permitted by law.
NebulaGraph may suspend or terminate paid Services for non-payment.
NebulaGraph may offer:
• free trials;
• promotional credits;
• evaluation access; or
• free-tier Services.
Free-tier Services and promotional credits:
• may be modified, limited, or terminated at any time;
• have no cash value;
• are non-transferable; and
• may expire automatically.
Service Instance Processing Rules
Free Trial Instance
The instance will be permanently deleted immediately after the free trial expires. Reminder emails will be sent 7, 3 and 1 days prior to expiration.
Paid Instance
• Voluntary subscription cancellation: A 6-hour grace period is available. The instance will be deleted upon expiry of the grace period, and a notification email will be issued afterwards.
• Failed billing record or payment deduction: Access to paid services will be suspended immediately. A 14-day grace period will be provided, with reminder emails dispatched every 24 hours. The instance will be deleted once the grace period ends, and a final notification email will be sent.
5.Customer Data
You retain ownership of all data, content, records, and materials submitted to or processed through the Service (“Customer Data”).
You are solely responsible for:
• the legality, accuracy, and integrity of Customer Data;
• obtaining all necessary rights, consents, and permissions; and
• maintaining independent backups of Customer Data.
You grant NebulaGraph a limited right to host, process, transmit, store, back up, and analyze Customer Data solely as necessary to:
• provide and maintain the Service;
• improve platform performance and reliability;
• prevent abuse and security incidents;
• comply with law; and
• enforce these Terms.
NebulaGraph will not use Customer Data for advertising purposes or sell Customer Data to third parties.
Upon termination or expiration of the Service, you may retrieve Customer Data within the period specified in the Service Instance Processing Rules, if applicable, unless otherwise required by law or specified in an Enterprise Agreement.
After that period, NebulaGraph may delete Customer Data from active systems.
6.Privacy and Security
NebulaGraph’s collection and processing of personal information are governed by the NebulaGraph Privacy Policy.
Privacy Policy URL: [ https://nebula-graph.io/privacy-policy]
NebulaGraph implements commercially reasonable technical and organizational security measures designed to protect the security and availability of the Service.
Personal Information may be transferred to and processed in the United States and other jurisdictions where NebulaGraph or its service providers operate.
Where required by applicable law, NebulaGraph implements reasonable safeguards for cross-border data transfers.
Where applicable, the parties may enter into a separate Data Processing Agreement (“DPA”).
7.Intellectual Property
NebulaGraph and its licensors retain all rights, title, and interest in and to:
• the Service;
• software;
• APIs;
• documentation;
• trademarks;
• platform infrastructure; and
• related intellectual property rights.
These Terms grant you a limited, non-exclusive, non-transferable right to access and use the Service during the applicable subscription term.
You may provide feedback or suggestions regarding the Service, and NebulaGraph may use such feedback without restriction or compensation.
Third-party open-source software included in the Service remains subject to its applicable open-source license terms.
8.Confidentiality
Each party agrees to protect the other party’s non-public confidential information using reasonable care and to use such information only for purposes related to the Service and these Terms.Confidential information does not include information that:
• becomes public through no fault of the receiving party;
• was already lawfully known;
• is independently developed; or
• must be disclosed by law.
Confidentiality obligations survive termination of these Terms for three (3) years.
9.Beta Services and Disclaimer
NebulaGraph may offer beta, preview, experimental, or evaluation features (“Beta Services”).
Beta Services may be modified, suspended, or discontinued at any time and may not be subject to the same security, availability, or support commitments applicable to production Services. Beta Services are not subject to any SLA obligations or security audit certifications. Customers assume heightened risks of data loss while utilizing Beta Services.
EXCEPT AS EXPRESSLY PROVIDED IN AN ENTERPRISE AGREEMENT, THE SERVICE IS PROVIDED “AS IS” AND “AS AVAILABLE.”
TO THE MAXIMUM EXTENT PERMITTED BY LAW, NEBULAGRAPH DISCLAIMS ALL IMPLIED WARRANTIES, INCLUDING:
• MERCHANTABILITY;
• FITNESS FOR A PARTICULAR PURPOSE;
• NON-INFRINGEMENT; and
• UNINTERRUPTED OR ERROR-FREE OPERATION.
NebulaGraph does not guarantee that the Service will always be secure, uninterrupted, or continuously available.
Scheduled maintenance, emergency maintenance, third-party failures, internet outages, and events beyond NebulaGraph’s reasonable control may affect Service availability.
10.Limitation of Liability
TO THE MAXIMUM EXTENT PERMITTED BY LAW:
• NEITHER PARTY SHALL BE LIABLE FOR INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, EXEMPLARY, OR PUNITIVE DAMAGES; AND
• NEBULAGRAPH’S TOTAL LIABILITY ARISING OUT OF OR RELATED TO THE SERVICE SHALL NOT EXCEED THE FEES PAID BY YOU TO NEBULAGRAPH DURING THE TWELVE (12) MONTHS PRECEDING THE EVENT GIVING RISE TO THE CLAIM.
• DIRECT DAMAGES CAUSED BY DATA LOSS SHALL BE CAPPED AT THE FEES PAID BY YOU TO NEBULAGRAPH DURING THE TWELVE (12) MONTHS PRECEDING THE EVENT GIVING RISE TO THE CLAIM..
These limitations do not apply to:
• fraud or intentional misconduct;
• payment obligations; or
• violations of intellectual property rights.
11.Indemnification
You agree to defend and indemnify NebulaGraph against third-party claims arising from:
• your Customer Data;
• your misuse of the Service;
• your violation of applicable law; or
• your breach of these Terms.
NebulaGraph may, at its discretion, defend claims alleging that the unmodified Service infringes third-party intellectual property rights. NebulaGraph may resolve such claims by:
• modifying the Service;
• obtaining rights for continued use; or
• terminating affected Services and refunding prepaid unused fees.
This Section states the parties’ exclusive remedies for intellectual property infringement claims.
12.Suspension and Termination
NebulaGraph may suspend or terminate access to the Service if:
• you materially violate these Terms;
• payment obligations remain overdue;
• your use creates security or operational risks;
• your activities may harm the Service or other users; or
• suspension is required by law or government request. You may stop using the Service at any time.
Upon termination:
• your right to use the Service immediately ends;
• fees already paid remain non-refundable unless required by law; and
• Sections relating to intellectual property, confidentiality, liability, indemnification, and dispute resolution survive termination.
13.Governing Law and Disputes
These Terms are governed by the laws of the State of California, excluding conflict-of-law principles.
The parties consent to the exclusive jurisdiction and venue of the state and federal courts located in San Francisco, California.
14.General Terms
NebulaGraph may update these Terms from time to time by posting revised Terms online.
Material changes will apply prospectively after posting.
You may not assign these Terms without NebulaGraph’s prior written consent.
If any provision is held unenforceable, the remaining provisions remain effective.
These Terms, together with any applicable:
• order forms;
• pricing terms;
• Privacy Policy;
• DPA; or
• Enterprise Agreement,
These Terms, together with any applicable order forms, pricing terms, Privacy Policy, DPA, and Enterprise Agreement, form the agreement governing your use of the Service.
Neither party shall be liable for delays or failures caused by events beyond reasonable control.
