Effective date: October 25, 2026. Version: 1.0.
1. Agreement
These Terms of Service (the Terms) are a contract between you and Nexus402, a demonstration site operated from Nepal, of Kathmandu, Nepal (Nexus402, we, us). They govern your access to and use of the Nexus402 website at https://www.nexus402.dev, the account console, the API gateway, the documentation and related services (the Services). The following documents are part of these Terms: the Payments, Wallet and Refund Terms, the Acceptable Use Policy, the Privacy Policy, and, if you publish tools, the Creator Agreement. If you process personal data through the Services, the Data Processing Addendum also applies. If a document conflicts with these Terms, the more specific document controls for its subject matter.
By ticking the agreement box when you sign up, creating an API key, adding funds or publishing a tool, you accept these Terms for yourself and, if you act for a company, for that company. If you do not agree, do not use the Services.
2. Eligibility and business use
You must be at least 18 years old and able to form a binding contract. The Services are intended for business and professional use by developers and companies, not for personal, family or household purposes. You must not use the Services if you are located in, ordinarily resident in, or organised under the laws of a country or region subject to comprehensive sanctions, or if you appear on a restricted-party list (see section 13).
3. Accounts and security
Sign-in is through Google, GitHub or Apple. You must keep your sign-in provider account secure and give us accurate information. You are responsible for everything done with your account and your API keys. API keys are secrets. Do not embed them in public code or share them. Rotate a key immediately if you suspect exposure. We may revoke keys we believe are compromised. You must tell us promptly at security@nexus402.dev of any unauthorised use.
4. The Services and the parties
Nexus402 operates a gateway that authenticates a request made with your API key, checks your balance and spend caps, deducts the published price of a tool call, forwards the request to the endpoint operated by the tool's creator, and streams the response back to you. There are three roles.
Developers use Credits to call tools. Creators publish tools and run the endpoints that serve them. Nexus402 operates the gateway, sells Credits and metered access, and pays creators a revenue share.
Creators are independent businesses or individuals. They are not our employees, agents or partners. We do not operate, inspect, test, endorse or guarantee any creator's tool, and we are not a party to anything a creator promises you outside these Terms.
5. Nexus402 as seller of record
We sell Credits and metered access to tool calls to you in our own name. When you pay, the contract for that sale is with us. Creators are our suppliers: they license their tools for use through the Services and we pay them a revenue share. We are not your agent and we do not hold your money for transmission to any particular creator.
6. Wallet and Credits
Credits are a prepaid right to use the Services. They are not money, a deposit, stored value held in trust for you, or an account at a bank. They earn no interest, are not insured by any government scheme, cannot be transferred to another user, and cannot be redeemed for cash, except where the law requires or as stated in the Payments, Wallet and Refund Terms. Credits are denominated in United States dollars. Limits on how much you may add apply and are described in the Payments, Wallet and Refund Terms. We may refuse, limit or reverse any top-up we suspect is fraudulent, unauthorised or unlawful.
7. Calls, charging and failures
Prices are set by creators per published version and cannot change for that version. A price change requires a new version, and calls that name no version resolve to the latest published version. Prices are measured in micro-USD (one millionth of a dollar).
We deduct the price of a call before forwarding it. The following rules decide whether a call is charged.
- If your balance or a spend cap is insufficient, the call is refused and you are not charged.
- If we cannot record the charge, or cannot reach the creator's endpoint (name resolution, connection, security handshake or timeout) before any response arrives, we reverse the deduction.
- If the creator's endpoint returns an error status (anything other than 2xx) before response data begins streaming to you, we reverse the deduction.
- Once the creator's successful (2xx) response begins streaming back to you, the charge stands. This is true even if the stream later fails, is truncated, times out, is cancelled by you, or the content is wrong, late or unhelpful.
If you believe you were charged for a failed call, contact contact@nexus402.dev within 30 days with the correlation ID. We may, in our discretion, credit your wallet. This does not limit rights you have under mandatory law.
Spend caps are a safety feature. A cap protects you only if you set it. Each API key has a rolling 24-hour cap; a cap of zero turns the cap off. You are responsible for all calls made with your keys, including calls made by autonomous agents, scripts and third-party software acting under them.
8. Fees and taxes
Fees are shown at checkout and in the console. Our platform fee is 10 percent of the price of each call, rounded down to the nearest micro-USD, and is taken from the creator's share, not added to your price. Fees are non-refundable except as stated in these Terms. Prices exclude taxes unless stated. You are responsible for taxes on your purchases other than taxes on our income. Where we are required to collect sales tax, VAT, GST or similar tax, we will add it at checkout and issue a receipt. If you are required to withhold tax, you must tell us before purchase.
9. Third-party tools and your data
Each tool is provided by its creator. When you call a tool, the full request, including any arguments, content and headers you send, is delivered to the creator's endpoint. We do not review that content. Before you send personal data, confidential information, credentials or regulated data to a tool, you are responsible for deciding that the creator is trustworthy and that you have the right and a lawful basis to send it. Never send secrets you do not intend the creator to receive. Creators agree to limits on how they may use what they receive, but we cannot guarantee their compliance. Our role and yours regarding personal data are set out in the Privacy Policy and the Data Processing Addendum.
10. Acceptable use
You must follow the Acceptable Use Policy. We may investigate suspected violations and cooperate with law enforcement.
11. Intellectual property
We own the Services and everything in them other than your content and creators' content. We grant you a limited, revocable, non-exclusive, non-transferable right to use the Services in accordance with these Terms. You keep your rights in what you send and receive. You grant us the limited right to process your requests and responses as needed to provide the Services. If you give us feedback, we may use it without restriction or payment.
12. Pre-release features
Parts of the Services may be labelled pre-release, preview or beta. Payouts, particular payment methods and particular countries may be unavailable. We may change, limit or withdraw such features at any time. Test-mode transactions have no monetary value.
13. Sanctions, export and compliance
You represent that you and anyone who controls you are not subject to sanctions, are not located in, resident in, or ordinarily controlled from Cuba, Iran, North Korea, Syria, the Crimea, Donetsk or Luhansk regions of Ukraine, or any other place we list for legal reasons, and are not on a restricted-party list of the United States, United Kingdom, European Union or United Nations. You will not use the Services to supply restricted goods or services to such places or persons, including information technology and cloud services to persons in Russia where prohibited. You will comply with export control and anti-corruption laws. We may block access based on IP address, billing country or other signals and may freeze funds where law requires.
14. Privacy
Our Privacy Policy explains how we handle personal data. By using the Services you acknowledge it.
15. Suspension and termination
You may close your account at any time from the console, subject to the Payments, Wallet and Refund Terms for any remaining balance. We may suspend or terminate your access immediately, without prior notice, if we reasonably believe you have breached these Terms or the Acceptable Use Policy in a serious way, your use creates security, fraud, sanctions or legal risk, a payment is disputed or reversed, or we are required to by law or by a payment partner. In other cases we will give you at least 30 days' notice of termination. Whenever we restrict, suspend or terminate you, we will tell you the reasons, unless law prevents us, and give you a way to respond through contact@nexus402.dev. We will consider your response in good faith and reverse the decision if it was mistaken. Sections that by their nature should survive will survive termination.
16. Disclaimers
The Services are provided as is and as available. To the fullest extent permitted by law, we disclaim all warranties, express or implied, including merchantability, fitness for a particular purpose, non-infringement, accuracy, availability and uninterrupted or error-free operation. We make no promise about any tool, its output or its creator. Outputs of AI systems and tools may be wrong or harmful; you are responsible for how you use them. We do not provide legal, tax, financial or investment advice.
17. Limitation of liability
To the fullest extent permitted by law: (a) we are not liable for indirect, incidental, special, consequential, exemplary or punitive damages, or for lost profits, revenue, data or goodwill, even if advised of the possibility; (b) we are not liable for anything done or not done by a creator or other third party; and (c) our total liability for all claims relating to the Services in any 12-month period is limited to the greater of the amount you paid us in that period and 100 US dollars. These limits do not apply to liability that cannot be limited by law, to fraud, or to your payment obligations. If you are a consumer under mandatory law where you live, nothing in these Terms removes rights you cannot waive.
18. Indemnity
You will defend and indemnify us and our officers, employees and agents against claims, losses and costs (including reasonable legal fees) arising from your content, your requests and the data you send to tools, your use of the Services in breach of these Terms or law, and your keys being used by others through your failure to secure them.
19. Governing law and disputes
These Terms are governed by the laws of Nepal, without regard to conflict-of-law rules. Before filing a claim, each party will try to resolve the dispute informally for 30 days after written notice to the other (our address for notices is mail@nexus402.dev).
Any dispute that is not resolved informally will be finally resolved by binding arbitration under the Arbitration Act, 2055 (1999) of Nepal by one arbitrator, seated in Kathmandu, Nepal, conducted in English. Judgment on the award may be entered in any court with jurisdiction. Either party may bring an individual claim in small claims court, and either party may ask a court for temporary or injunctive relief to protect intellectual property or confidential information.
To the extent allowed by law, disputes will be brought only on an individual basis, not as a plaintiff or class member in a class, collective or representative action. If many similar claims are filed, they may be batched and resolved in stages under the arbitration rules.
You may opt out of arbitration and the class waiver within 30 days after you first accept these Terms by emailing mail@nexus402.dev from the address linked to your account with the subject "Arbitration opt-out". If you opt out, or if this section is held unenforceable, disputes will be heard exclusively in the courts of Nepal, and you consent to their jurisdiction.
If you are a consumer in the European Union, the United Kingdom or another place where mandatory law gives you the right to bring claims in your local courts or to rely on your local consumer law, this section does not remove those rights.
20. Changes
We may update these Terms. For material changes we will give at least 30 days' notice by email and in the console before they take effect, and the updated version will show a new effective date. If you do not agree, you may close your account before the date. Continued use after the effective date means you accept. Urgent changes needed to comply with law or to address security may take effect sooner.
21. General
These Terms and the documents they incorporate are the entire agreement between us on their subject. If a provision is unenforceable, the rest remains. Failure to enforce a right is not a waiver. You may not assign these Terms without our consent. We may assign them to an affiliate or to a successor of our business, including a successor that takes over the Services, on notice to you. We are not liable for delay or failure caused by events beyond our reasonable control. Notices to you may be sent to the email on your account or posted in the console. Notices to us go to mail@nexus402.dev. These Terms are in English; translations are for convenience.
22. Contact
Nexus402, Kathmandu, Nepal. Phone: +977 9765009885 / +977 9806763754. General: contact@nexus402.dev. Mail: mail@nexus402.dev. Privacy: privacy@nexus402.dev. Security reports: security@nexus402.dev. Reports: report@nexus402.dev.