Terms of Service

1. Eligibility and Account Registration

1.1 You must be at least eighteen (18) years old, or the age of majority in your country of residence (whichever is higher), and legally capable of entering into binding contracts. If you register on behalf of a company or other legal entity, you represent that you have authority to bind that entity, in which case “you” refers to that entity.

1.2 To use the Service you must register a Nexus account and provide accurate, current, and complete information, including a valid email address. You agree to keep your account information up to date and to notify us promptly of any changes.

1.3 You are responsible for all activity that occurs under your account, including activity by employees, contractors, or any other persons to whom you grant access. You must keep your account credentials and API keys confidential and must not share them publicly, commit them to source control, or expose them in client-side code.

1.4 We may refuse to open an account, limit the number of accounts you may hold, or suspend or terminate any account, in our reasonable discretion, including where we suspect fraud, abuse, or breach of these Terms.

2. The Service

2.1 Gero Nexus is a developer-facing API gateway that aggregates blockchain data from multiple networks (currently including Cardano, Midnight, and Bitcoin) and exposes it through a unified HTTP and WebSocket interface. Specific endpoints, data categories, and features are described in our published documentation and may change from time to time.

2.2 The Service is sold on a subscription basis under the plans described on our pricing page (currently Builder, Growth, and Scale self-serve tiers, plus Enterprise and Dedicated tiers). Each plan specifies a monthly request quota, rate-limit ceiling, API-key allowance, and feature set. Optional add-ons (such as Market Data, Wallet Analytics, Transaction Builder, and WebSocket Streaming packages) may be enabled separately. Plans, prices, quotas, add-ons, and features may change; we will give reasonable advance notice of material changes that affect your existing subscription.

2.3 A free trial may be offered on selected plans (for example, the Builder plan) for the duration stated on the pricing page. Trials may be discontinued or modified at any time and are subject to fair and reasonable use.

2.4 Nexus is a service for accessing blockchain data through our infrastructure. It is not itself a wallet, custody service, broker, exchange, or money-transmission business. We do not custody Customer funds, hold private keys, or execute trades on behalf of Customers. Where data returned by the Service originates from public blockchain networks, we do not warrant the accuracy or finality of that data — see Section 8.

3. API Keys and Acceptable Use

3.1 Each Nexus account may generate one or more API keys, up to the limit specified by your plan. API keys authenticate your requests to the Service and are used to enforce your plan's quota and rate limits. You must treat API keys as confidential credentials. You must not share them with third parties, embed them in unprotected client-side applications, or permit any party unauthorised by you to use them.

3.2 You agree not to:

• use the Service in violation of applicable law, including sanctions administered by the European Union, United Nations, United Kingdom, United States (including OFAC), or Israel;
• attempt to bypass, disable, or interfere with rate limits, quota enforcement, authentication, or any other security feature of the Service;
• reverse-engineer, decompile, or attempt to derive the source code of the Service, except to the extent expressly permitted by applicable law;
• resell, sublicense, or redistribute the Service or the data it returns as a stand-alone product or as a meaningful part of a product whose primary value is the data we provide, without our prior written consent;
• use the Service to build a product that competes directly with the Service;
• use the Service to send spam, conduct denial-of-service attacks, distribute malware, or harass others;
• make systematic queries to the Service for the purpose of extracting, replicating, or training a substitute product on the underlying data, models, or indexes that power the Service; or
• use the Service to facilitate or engage in any activity prohibited by Appendix A (Prohibited Use) below.

3.3 We may monitor your use of the Service for compliance with these Terms and to maintain service quality. We may suspend, throttle, or terminate access without notice where we reasonably believe your use threatens the stability or security of the Service or the rights or safety of others.

4. Plans, Fees, Billing, and Payment Processors

4.1 Subscription fees are charged in advance on a monthly cycle in US dollars (USD), unless another currency is expressly agreed for your plan. The renewal date for each billing cycle is the same calendar day each month as the date you first subscribed (or the last day of the month if a given month is shorter). All fees are exclusive of applicable taxes, which you are responsible for paying.

4.2 We process payments through authorised third-party payment processors, currently PayPal (for payments funded from a PayPal balance or linked bank account) and AllPay (for card, Apple Pay, and Google Pay payments). By submitting payment information you authorise the relevant processor to charge your chosen payment method, and you agree to that processor's terms of service and privacy policy in addition to these Terms. We do not store full payment-card numbers or bank-account credentials on our servers; that data is held by the relevant payment processor under its own PCI-DSS-compliant infrastructure.

4.3 Cancellation. You may cancel your subscription at any time through the Nexus dashboard. Cancellation takes effect at the end of the then-current billing cycle; you will retain access to your plan's features until that date and will not be charged for the next cycle.

4.4 Refunds. Subscription fees are non-refundable except where required by applicable law. This refund policy is published as part of these Terms so that customers may review it before purchase. If you believe you have been charged in error, contact us at [email protected] within thirty (30) days of the charge and we will investigate in good faith. Where we determine an error has been made, we will refund the affected charge to the original payment method.

4.5 EEA / UK consumer right of withdrawal. If you are a consumer (acting outside your trade, business, craft, or profession) and you are resident in the European Economic Area or the United Kingdom, you have the right to withdraw from the subscription contract within fourteen (14) days of its conclusion, without giving any reason. To exercise this right, send a clear statement of withdrawal to [email protected] before the 14-day period expires. Where you have begun using the Service during the withdrawal period, you may be charged an amount proportionate to the use you have made of the Service up to the point of withdrawal, and the balance (if any) will be refunded to your original payment method. This right does not apply to subscriptions purchased on behalf of a business or other legal entity.

4.6 Failed payments. If a scheduled payment fails we may retry the charge, suspend the account, or downgrade the plan. We will send a reminder to the email address on your account before suspending or downgrading.

4.7 Chargebacks. Initiating a chargeback for a legitimate charge, instead of contacting us first to resolve a billing dispute, is a breach of these Terms. Where a chargeback is initiated for a charge we determine to be legitimate, we may suspend or terminate the affected account, recover the disputed amount and any associated fees, and we will not re-attempt the charge against the cardholder where doing so would breach the payment-processor or card-network rules.

5. Service Availability, Quality, and Support

5.1 We aim to maintain high service availability but do not guarantee that the Service will be uninterrupted, error-free, or perfectly accurate. The Service may be subject to scheduled maintenance, unscheduled outages, or degradation caused by upstream blockchain-network conditions, third-party providers, or force-majeure events.

5.2 Where a written service-level agreement (SLA) has been agreed for your plan (for example, certain Enterprise or Dedicated engagements), the specific service-level commitments and remedies for that plan are set out in that SLA. In the absence of an explicit SLA, the Service is provided on a commercially reasonable best-efforts basis.

5.3 Standard support is available via email at [email protected]. Higher-tier plans may include priority or dedicated support as described on the pricing page.

6. Customer Data and Confidentiality

6.1 “Customer Data” means any data you submit to the Service, including request parameters, account metadata, and any content embedded in your applications that calls the Service. You retain ownership of Customer Data.

6.2 You grant us a limited, non-exclusive, worldwide, royalty-free licence to host, process, and transmit Customer Data solely as necessary to operate, maintain, and improve the Service for you, to enforce these Terms, and to comply with applicable law.

6.3 We treat your account information and any non-public Customer Data as confidential. We will not sell Customer Data and will not disclose it except: (a) to authorised sub-processors as described in our Privacy Policy; (b) where required by law, court order, or binding regulator request; or (c) with your consent.

6.4 Public blockchain data is, by its nature, not confidential. The Service returns data sourced from public ledgers; nothing in these Terms restricts the return of such public data to other Customers in response to their own requests.

7. Intellectual Property

7.1 We and our licensors own all right, title, and interest in and to the Service, including the underlying software, infrastructure, documentation, and the “Gero”, “Gero Nexus”, and related logos and trade dress. We grant you a limited, non-exclusive, non-transferable, revocable licence to access and use the Service for your internal business purposes during your subscription, subject to these Terms.

7.2 Feedback you voluntarily provide about the Service (suggestions, ideas, bug reports) is non-confidential, and you grant us a perpetual, irrevocable, royalty-free licence to use it for any purpose without obligation to you.

7.3 Open source. Portions of the Service may include open source components made available under their respective licences; those licences govern your use of those components.

8. Disclaimers

8.1 The Service is provided “as is” and “as available” without warranties of any kind, express or implied, to the maximum extent permitted by applicable law, including implied warranties of merchantability, fitness for a particular purpose, accuracy of data, non-infringement, and quiet enjoyment.

8.2 Blockchain data risk. The Service surfaces data from public blockchain networks. We do not control those networks. Network forks, re-orgs, indexer lag, mempool volatility, and protocol-level changes may cause the data we return to differ from on-chain truth at any moment. You are solely responsible for any decision you make based on data returned by the Service.

8.3 Third-party providers. The Service relies on upstream data and infrastructure providers (including but not limited to Cardano, Midnight, and Bitcoin node operators, public indexers, cloud-hosting providers, and other ecosystem participants). We are not responsible for the acts, omissions, or availability of those providers.

8.4 No financial, investment, tax, or legal advice is given by the Service or by us.

9. Limitation of Liability

9.1 To the maximum extent permitted by applicable law, in no event will we, our affiliates, or our directors, employees, or agents be liable to you or any third party for any indirect, consequential, incidental, special, exemplary, or punitive damages, including lost profits, lost data, or business-interruption damages, arising out of or relating to the Service or these Terms, even if we have been advised of the possibility of such damages.

9.2 Our total aggregate liability for any cause whatsoever, regardless of the form of action, is limited to the greater of (a) the fees you paid us for the Service in the twelve (12) months immediately preceding the event giving rise to the claim, or (b) one hundred US dollars (US$100).

9.3 Nothing in these Terms limits or excludes liability for: (i) death or personal injury caused by negligence; (ii) fraud or fraudulent misrepresentation; or (iii) any liability that cannot be limited or excluded under applicable law.

10. Indemnity

You agree to indemnify and hold harmless A.D. Labs LTD, its affiliates, and their respective directors, officers, employees, and agents from and against any claim, demand, loss, liability, damage, or expense (including reasonable legal fees) arising out of or relating to: (a) your use of the Service in breach of these Terms; (b) your violation of any law or the rights of any third party; or (c) any product or service you build using the Service.

11. Term, Suspension, and Termination

11.1 These Terms apply for as long as you use the Service.

11.2 You may terminate at any time by cancelling your subscription and discontinuing use of the Service. Cancellation rules are described in Section 4.3, and the EEA / UK 14-day right of withdrawal is described in Section 4.5.

11.3 We may suspend or terminate your account, with or without notice, where: (a) you have materially breached these Terms; (b) we are required to do so by law, court order, or sanctions programme; (c) we reasonably believe continued service poses a security or stability risk; or (d) you have failed to pay applicable fees.

11.4 On termination, your right to access the Service ends immediately and we may delete API keys and account-level configuration. Sections that by their nature should survive termination — including Sections 6 (Confidentiality), 7 (Intellectual Property), 8 (Disclaimers), 9 (Limitation of Liability), 10 (Indemnity), 13 (Dispute Resolution), and any unpaid-fee obligations — survive termination.

12. Electronic Communications

By creating a Nexus account, you consent to receive electronically all notices, disclosures, and other communications we provide in connection with your account and the Service, including communications about changes to these Terms, billing, security, and service updates. You may withdraw this consent by closing your account; withdrawing consent without closing your account is not practical given the electronic-only nature of the Service.

13. Governing Law and Dispute Resolution

13.1 These Terms and any non-contractual obligations arising out of or in connection with them are governed by the laws of the State of Israel, without regard to its conflict-of-laws rules. This choice of law does not deprive consumers of mandatory protections of the law of their habitual residence.

13.2 Informal resolution. Before filing any legal claim, you agree to contact us at [email protected] and to attempt in good faith to resolve the dispute informally for at least thirty (30) days.

13.3 Forum.

• For Customers located in the European Union or European Economic Area, you may bring proceedings in the courts of your country of residence; you may also use the European Commission's Online Dispute Resolution platform.
• For all other Customers, including Customers located in Israel, the courts of Tel Aviv-Jaffa, Israel have exclusive jurisdiction, save for mandatory consumer-protection rules in your jurisdiction that provide otherwise.

14. General

14.1 Entire agreement. These Terms, together with the Privacy Policy and any plan-specific SLAs or order forms, are the entire agreement between you and us regarding the Service.

14.2 Severability. If any provision of these Terms is held to be invalid or unenforceable, it will be enforced to the maximum extent permitted by law, and the remaining provisions will remain in full force.

14.3 No waiver. Our failure to enforce any right is not a waiver of that right.

14.4 Assignment. You may not assign these Terms without our prior written consent. We may assign these Terms in connection with a merger, acquisition, sale of assets, or by operation of law, with notice to you.

14.5 Force majeure. We are not liable for delays or failures caused by events beyond our reasonable control, including acts of God, war, terrorism, pandemic, civil unrest, labour disputes, telecommunications failures, internet-service-provider failures, and governmental action.

14.6 Notices. Notices to us must be sent to [email protected] or in writing to A.D. Labs LTD, Balfur, Bat Yam, Israel, attn. Legal Department. Notices to you will be sent to the email address on your Nexus account.

14.7 Relationship. The parties are independent contractors. These Terms create no partnership, agency, joint venture, or employment relationship.

Appendix A — Prohibited Use

You may not use the Service, directly or indirectly, to:

• facilitate sanctions evasion, money laundering, terrorist financing, or other financial crime;
• facilitate fraud, deception, or theft against any person;
• send spam, run denial-of-service attacks, or distribute malware;
• infringe the intellectual-property or privacy rights of others;
• operate gambling services in a jurisdiction where doing so requires a licence you do not hold;
• engage in the sale of regulated products (firearms, controlled substances, etc.) in a jurisdiction where doing so requires a licence you do not hold;
• harvest, scrape, or aggregate the Service's data in a manner that violates these Terms; or
• act for or on behalf of any individual or entity subject to applicable sanctions.

Contact

Questions about these Terms should be sent to:

A.D. Labs LTD
Attn: Legal Department
Balfur, Bat Yam, Israel
[email protected]