CloudSage API Platform User Service Agreement

Effective Date: August 14, 2026

This CloudSage API Platform User Service Agreement (hereinafter referred to as "this Agreement") is a legal document stipulating the rights and obligations between the User (including individuals and entities, collectively referred to as "User" or "You") and CloudSage API Platform (hereinafter referred to as the "Platform" or "We") regarding the data technology services and related products provided by CloudSage API Platform (official website: https://yunsapi.com). Before registering as a CloudSage API user, you must carefully read and fully understand the entire content of this Agreement and other service rules published by the Platform (collectively referred to as the "Service Terms"). If you do not agree to be bound by such Service Terms, you should stop the registration process and cease using the Platform's services. When you click the "Agree to Register" button on the Platform's registration page, complete the registration process, and obtain a CloudSage API account and password, it is deemed that you have carefully read all the Service Terms, are aware of, understand, and accept them, and agree to take them as the basis for determining the rights and obligations of both parties. The Service Terms are legally binding on both you and the Platform.

CloudSage API Platform (hereinafter referred to as the "Operator") is a trading platform operated and managed to provide users with multiple services such as API testing, API application, API invocation, and data customization. Its official website is https://yunsapi.com. Unless expressly provided otherwise in this Agreement, this Agreement does not apply to users of special data technology services provided by the Platform; for such services, please read the special terms formulated for those services, which are available on the Platform's official website.

If any provision of this Agreement differs from any provision in a paper contract signed between the User and the Operator, the paper contract shall prevail; matters not covered by the paper contract shall be governed by the various service terms that the User agrees to during the registration and use of the Platform.

1. Service Objects

1.1 A person shall be recognized as a CloudSage API User only if all of the following conditions are met:

(1) Agrees to the contents of this Agreement and accepts its binding force;

(2) Completes the registration process on the Platform and obtains a Platform account and password.

1.2 CloudSage API User Types and Real‑Name Authentication

1.2.1 User Types:

(1) Individual users;

(2) Entity (corporate) users.

1.2.2 Real‑Name Authentication Instructions:

(1) Individual users must provide, in accordance with the Platform's requirements, including but not limited to: front and back images of personal identification documents, basic personal information, and any other information that the Platform deems necessary to provide services that meet the User's needs.

(2) Entity users must provide, in accordance with the Platform's requirements, including but not limited to: copies of the business license (both original and duplicate), required qualification permits (if any) for engaging in cooperative business or using Platform services, basic corporate information, and any other information that the Platform deems necessary to provide services that meet the User's needs.

(3) The User warrants that the identification documents and information provided for real‑name authentication are true, accurate, complete, up‑to‑date, and valid. Any loss or liability arising from the User's failure to meet the above requirements shall be borne solely by the User.

(4) If the User is an enterprise real‑name customer, the User warrants that the registration and subsequent Platform operations (including but not limited to registration, top‑up, purchase, consumption, refund application, etc.) are duly authorized. Otherwise, any resulting loss or liability shall be borne solely by the User.

2. Account Registration and Management

2.1 When registering, you must provide true, accurate, and complete personal information, including but not limited to username, mobile phone number, QQ number, and email address. The Platform has the right to review registration information and may refuse registration or suspend the account if false information is found.

2.2 You shall properly keep your account, login password, App ID, and App Key. Any loss resulting from improper safekeeping or active disclosure shall be borne by you. If you discover that your credentials have been leaked, abnormal logins have occurred, or your account is being used without authorization, you shall immediately reset your credentials in the console and, if necessary, contact Platform customer service. Any losses incurred during the Platform's cooperation in handling the matter shall be borne by you.

2.3 The account is for personal use only and may not be transferred, rented, lent, gifted, or used for any form of commercial resale. The Platform has the right to investigate abnormal usage and take restrictive measures.

2.4 The Platform periodically cleans up dormant accounts that have been inactive for a long time. Prior to freezing, notification will be sent via the registered email or mobile phone. If the account is not reactivated within 30 days after freezing, the Platform has the right to cancel the account and delete related data.

2.5 The User shall comply with laws, regulations, rules, normative documents, and policy requirements, prudently and reasonably use and keep the Platform account and password, and be responsible for all actions and events conducted through the Platform account and password. When the User discovers that the Platform account is being used by an unauthorized third party or there are other security issues, the User shall immediately effectively notify the Platform, request the Platform to suspend the service of the Platform account, and report to the public security authority. The Platform has the right to take action within a reasonable time in response to such requests and to cooperate with the User in taking corresponding measures, but shall not bear any liability for losses suffered by the User. Without the Platform's consent, the User may not dispose of the Platform account to others by way of gift, loan, lease, transfer, or otherwise.

3. Information Collection and User Privacy

3.1 To complete necessary business processes such as registration, identity authentication, real‑name verification, and payment settlement, the Platform needs to collect and store your username, password (encrypted), mobile phone number, QQ number, name, ID number, and other information. All information is used strictly in accordance with laws, regulations, and the provisions of this Agreement.

3.2 When you call real‑name authentication API interfaces through the Platform, the Platform may transmit the name, ID number, facial photo, and other data you input to authoritative data sources for verification. The Platform undertakes not to retain or misuse the above sensitive data; the transmission process uses encrypted channels, but you must ensure that you have obtained the legal authorization of the data subject.

3.3 The Platform adopts industry‑standard security measures to protect your personal information, including but not limited to encrypted storage, access control, security auditing, and intrusion detection, to prevent information leakage, tampering, or loss. For specific privacy protection provisions, please refer to the Privacy Policy. Although the Platform will make every effort to continuously improve account maintenance technology, due to current technological limitations, the Platform cannot guarantee that all measures taken are effective and completely secure. The User acknowledges, understands, and waives any liability of the Platform arising therefrom.

3.4 To improve user experience and service quality, the Platform will reasonably use user data generated by the Platform as needed, but will not disclose user privacy. By registering as a Platform user, you are deemed to have agreed and fully and effectively authorized the Platform to reasonably use your data/information on the Platform, provided that the customer privacy protection obligations are not violated.

3.5 The Platform may disclose your (or your users') information in the following circumstances:
(1) With your (or your users') prior authorization;
(2) When you (and your users) use sharing functions;
(3) As required by laws, regulations, legal procedures, or mandatory requirements of government authorities;
(4) For academic research or public interest purposes;
(5) To protect the legitimate rights and interests of the Platform, such as detecting, preventing, or addressing fraud or security issues;
(6) In accordance with the relevant Service Terms or usage agreements;
(7) By sharing your (and your users') information in an aggregated and/or anonymized form that cannot reasonably be used to identify you (or your users).

3.6 To ensure the successful completion of services, we may share with business partners (including data source institutions/data service providers) the operational data and user data necessary to provide services to you.

4. Service Content

4.1 The Platform provides API interface services such as SMS verification, identity authentication (including two‑factor/three‑factor/four‑factor verification of ID cards), facial recognition, bank card verification, and carrier inquiry, subject to the actual functions available on the Platform.

4.2 The Platform may adjust, upgrade, or discontinue some interfaces based on operational conditions, with prior notice via Platform announcements or in‑site messages.

4.3 The availability of interfaces is affected by upstream data sources (such as public security databases, carriers, UnionPay, etc.). The Platform will make every effort to ensure service stability but does not guarantee absolute continuous availability. The Platform shall not be liable for service interruptions caused by upstream data source failures.

4.4 Upon successful application for data, the User may receive a certain number of free test calls (if any); please refer to the corresponding interface documentation page for details.

4.5 Different data have different request frequencies; please pay attention to the request frequency of the data you apply for, as detailed in the corresponding interface documentation page.

4.6 If the User makes malicious requests (the Platform has the right to make its own judgment), collects Platform data without the Platform's consent, or otherwise infringes upon the Platform's legitimate rights and interests through the Platform, the Platform will stop providing services and may decide whether to take legal action depending on the circumstances.

4.7 The Platform has the right to adjust the charging standards for corresponding data technology services based on market conditions, service content, development plans, etc., and will announce such adjustments on the official website or the corresponding interface documentation page without separate notice to the User. When purchasing corresponding data technology services, the User should pay attention to the latest service fee standards.

4.8 If the general services provided by the Platform cannot meet the User's needs, the Platform is willing to provide special customized services. The User may contact Platform customer service for information regarding customized services.

5. Fees and Billing

5.1 Each interface is billed on a package or buyout basis, with specific prices as published on the purchase page. Packages include a fixed number of calls and a validity period; buyout means a one‑time purchase of permanent usage rights (excluding future new features).

5.2 After the package validity period expires or the number of calls is exhausted, the interface will automatically stop service and can be resumed by renewing and purchasing a new package.

5.3 Fees already paid are generally non‑refundable without reason. However, if the service cannot be used normally due to Platform reasons (e.g., continuous interface unavailability exceeding 72 hours), a refund may be applied for based on the remaining value.

5.4 Recharged amounts can only be used for consumption within the Platform and are non‑withdrawable and non‑transferable. If the account balance remains unused for a long time, the Platform has the right to clear it after 30 days' prior notice.

5.5 Price Adjustment Policy: The Platform has the right to adjust the selling prices of various interfaces (including package prices and buyout prices) in a timely manner based on market conditions, operating costs, competitive environment, and other factors. Price adjustments apply only to new purchase orders placed after the adjustment takes effect and are not retroactive. For packages or buyout services successfully purchased before the adjustment, even if prices change afterwards (whether increased or decreased), the fees you have paid are non‑refundable, the number of calls and validity period of purchased packages will not be increased, and the usage rights of buyout services will not be altered. At the same time, if prices rise later, you are not required to make up the difference. You understand and agree that price differences at different times do not constitute a legitimate reason for demanding a refund, supplementing services, or adjusting rights.

6. Intellectual Property Rights and Data

6.1 You agree (and shall obtain your users' prior consent) to grant the Platform a free, perpetual, irrevocable, non‑exclusive, and non‑transferable right and license to use your (and your users') logos or actions to promote your (and your users') use of this Service during the term of this Agreement.

6.2 Operational data means all or any data generated during your use of the Platform's services, including but not limited to data submitted by you (and your users) to the Platform and data returned, data generated by your use of the Platform, etc. Ownership and other related rights of operational data belong to the Platform and constitute trade secrets of the Platform, unless otherwise expressly provided by applicable laws and regulations as legitimate rights of you (or your users).

6.3 User data means data related to users generated during your use of the Platform's data services, including but not limited to text data, image data, and service‑returned data submitted by you. Ownership and other related rights of user data belong to the Platform and constitute trade secrets of the Platform, unless otherwise expressly provided by applicable laws and regulations as legitimate rights of you (or your users). Unless prior authorization from you (or your users) is obtained or otherwise provided in this Agreement, the Platform will not disclose user data to the public or provide it to third parties. The Platform may provide user data to its affiliated companies and require them to process and use such data in accordance with the Platform's privacy policy and any other appropriate confidentiality and security measures. Your application or service must satisfy the following requirements regarding the collection, storage, and use of user data:

(1) If your application or service needs to collect any user data, you must obtain the user's explicit consent in advance and only collect user data necessary for the operation and functionality of the application, while informing the user of the purpose, scope, and method of data collection to ensure the user's right to know.

(2) You shall adopt reasonable and secure technical measures to ensure the security of the user data you collect and shall bear full responsibility for the consequences arising from your own actions (including but not limited to installing software, taking encryption measures, or other security measures).

6.4 The User acknowledges, confirms, and warrants that, with respect to the data technology services provided by the Platform as agreed herein, if the data is non‑public and requires consent or authorization from the data provider or the relevant data subject according to applicable regulations, the Platform shall, when providing such data to the User, deem that the User has obtained all lawful, valid, and necessary consents or authorizations (collectively, "Valid Authorizations"). The Platform has the right to conduct spot checks on whether the User has obtained Valid Authorizations at any time, and the User shall actively cooperate. If any dispute or liability arises from the User's failure to obtain or to timely obtain Valid Authorizations for the use of such data, the User shall bear sole responsibility and shall take all effective actions (including but not limited to fully compensating the Platform) to ensure that the Platform is exempt from any liability or loss arising therefrom.

7. Modification, Interruption, and Termination of Services

7.1 The Platform is committed to providing users with better and more stable services, so the Platform may perform optimization and upgrades during the service period. Before optimization and upgrades, the Platform will post announcements in appropriate locations on the Platform, and users should pay attention in real time. Temporary service interruptions due to optimization and upgrades shall not be deemed a breach of the Service Terms by the Platform, and the Platform shall not bear any liability to the customer for such interruptions.

7.2 The Platform will provide users with quality, stable, and continuous services through service optimization and technology upgrades. However, service interruptions or impaired service quality caused by force majeure events shall be understood by the User, who waives any liability of the Platform related thereto. Force majeure events include but are not limited to natural disasters, strikes, riots, material shortages or rationing, insurrection, war acts, governmental actions, communication or other facility failures or serious casualty accidents, computer viruses, or hacker attacks.

7.3 If the User no longer needs the Platform's data technology services, the User may send an application for account cancellation to the Platform's official email (service@yunsapi.com). Upon approval by the Platform, the parties shall terminate the agreement and the Platform will cease providing services to the User.

7.4 The User must continue to meet the Platform's prescribed user conditions. If the User no longer meets the Platform's user requirements, the Platform has the right to terminate services and cancel the User's account. If the User has any objection, the User may file an objection application with the Platform.

7.5 In addition to complying with the Service Terms, the User shall also comply with the obligations under this Agreement when using the Platform's services; otherwise, the Platform has the right to interrupt services or reject the User's application for data technology services.

7.6 The User shall continuously comply with the Service Terms. If the User violates the Service Terms, the Platform has the right to take necessary measures, including stopping services.

7.7 You may stop using the Platform's services and cancel your account at any time. The Platform has the right to unilaterally suspend or terminate your account and services without prior notice if you violate this Agreement, are suspected of illegal activities, or pose a significant risk.

7.8 After termination of this Agreement, you shall immediately stop using all Platform services, and the Platform has the right to retain necessary data to cooperate with regulatory or judicial investigations.

8. User Obligations

8.1 You shall not use the data provided by the Platform to endanger national security, disclose state secrets, or infringe upon the legitimate rights and interests of the state, society, collectives, and citizens. You shall not use the data provided by the Platform to produce, reproduce, or disseminate the following information:

(1) Inciting resistance to, or undermining the implementation of, the Constitution, laws, and administrative regulations;

(2) Inciting the subversion of state power or the overthrow of the socialist system;

(3) Inciting the division of the country or undermining national unity;

(4) Inciting ethnic hatred or discrimination, or undermining ethnic unity;

(5) Fabricating or distorting facts, spreading rumors, or disrupting social order;

(6) Promoting feudal superstition, obscenity, pornography, gambling, violence, murder, terror, or incitement to crime;

(7) Publicly insulting others or fabricating facts to defame others, or conducting other malicious attacks;

(8) Damaging the reputation of state organs;

(9) Other contents that violate the Constitution, laws, and administrative regulations.

8.2 The User shall comply with laws, regulations, rules, normative documents, and policy requirements, and shall not engage in illegal activities or activities that harm the Platform or third‑party rights through the Platform or using Platform services, including but not limited to sending or receiving any illegal, non‑compliant, immoral, or rights‑infringing information, sending or receiving pyramid scheme materials, or other harmful information or remarks.

8.3 The User undertakes not to use the Platform's products or services for any conduct that violates Chinese laws, regulations, or policies. Any legal liability arising from such conduct shall be borne solely by the User and is unrelated to the Platform. If the User causes any damage to the Platform due to violation of this undertaking, the User shall compensate for all losses.

8.4 You shall not use the Platform's interfaces to engage in any illegal or criminal activities, including but not limited to infringement of citizens' personal information, telecommunications fraud, false authentication, cyber attacks, distribution of malware, etc.

8.5 You shall not bypass, damage, or attempt to damage the Platform's authentication, billing, security protection, or other mechanisms, nor shall you reverse‑engineer, scrape, or abuse the Platform.

8.6 Before calling identity authentication interfaces, you must ensure that you have obtained the explicit authorization and consent of the data subject and strictly comply with the Personal Information Protection Law of the People's Republic of China, the Cybersecurity Law of the People's Republic of China, and other relevant laws and regulations.

8.7 You bear full responsibility for the data obtained through the Platform's interfaces and shall not use such data for any purpose other than the agreed‑upon use, nor shall you resell or disclose it to third parties.

8.8 Account suspension, service termination, economic losses, and legal liabilities resulting from improper use shall be borne by you, and the Platform reserves the right to pursue compensation.

9. Liability for Breach of Contract

9.1 If the Platform causes losses to the User due to its violation of applicable laws, regulations, or obligations under this Agreement, the Platform agrees to bear corresponding compensatory liability and compensate the User for direct losses.

9.2 The User agrees to safeguard and protect the interests of the Platform and other users. If the User causes losses to the Platform or any other third party due to violation of applicable laws, regulations, or this Agreement, the User shall bear corresponding legal liability.

9.3 If disputes such as complaints, claims, or lawsuits arise from your end‑users due to the application of user data, user portrait information, etc., you shall be responsible for handling them and bearing all legal liability, and shall ensure that the Platform is exempt from any loss or damage. If the Platform bears sole or joint liability to anyone, including you and your end‑users, due to any governmental decision, court judgment, etc., you shall compensate the Platform in an amount corresponding to such liability to ensure that the Platform is exempt from any loss or damage.

10. Disclaimer

This disclaimer sets forth the circumstances under which the Platform is not liable, which are closely related to user rights and interests. The User shall read it carefully and item by item. If the User does not agree to the content of this disclaimer, the User shall stop registration or cease using the Platform's services and cancel the Platform account. By completing the registration process and using the Platform's services, the User is deemed to have fully known, understood, and accepted the special provisions of this disclaimer regarding rights, obligations, and liabilities, and agrees to be bound by them, thereby waiving the corresponding liabilities of the Platform.

10.1 For the purpose of serving users, the Platform may use your personal information to provide you with information that may be of interest, including but not limited to sending you product and service information, or sharing information with the Platform's affiliates and partners so that they may send you information about their products and services (the latter requires your prior consent).

10.2 The Platform may perform statistical analyses of product usage and may share such statistical information with the public to demonstrate the overall usage trends of the Platform's services. Such statistical information does not contain any personally identifiable information of users.

10.3 The upstream data sources (public security, carriers, UnionPay, etc.) connected to the Platform may experience delays, errors, or temporary unavailability. The Platform shall not be liable for any indirect losses (including but not limited to loss of profits, business interruption, data loss) arising therefrom.

10.4 Any business decisions you make based on data returned through the interfaces are at your own risk. The Platform only provides data verification services and makes no guarantee as to the absolute accuracy of the verification results.

10.5 Service interruptions caused by force majeure (including but not limited to natural disasters, war, governmental actions, network infrastructure failures, power outages, third‑party service provider failures, etc.) shall not constitute a breach of contract by the Platform, but the Platform shall use reasonable efforts to restore services within a reasonable scope.

10.6 The Platform shall not be liable for losses caused by your own equipment, network environment, operational errors, or other reasons.

10.7 Because the Platform has no control over data supplier resources, you acknowledge and agree that the Platform is not responsible for whether such data supplier resources are available to you. The Platform also does not warrant or assume responsibility for the authenticity of any content, goods, or services originating from or provided by such data supplier resources. The Platform assumes no liability for any damage or loss arising from the use of or reliance on any content, goods, or services published by or obtained through such data supplier resources.

10.8 According to laws, regulations, or agreements between relevant parties, data suppliers may be required to obtain necessary approvals or authorizations to provide corresponding resources and services. As the operator of the service platform, the Platform has no means or proper authority to supervise or verify whether data suppliers have obtained such approvals or authorizations. Although the Platform will strive to improve user experience and service quality through platform maintenance, software upgrades, etc., you acknowledge and agree that the Platform only provides platform services and does not warrant or assume any responsibility for the quality of services provided by data suppliers or whether they have obtained necessary approvals or authorizations.

11. Amendment of Service Terms

The Platform has the right to supplement, delete, or amend the Service Terms (collectively, "Amendments to Service Terms") as necessary, and shall publish such amendments in appropriate locations on its official website without separate notice to users. If you do not accept the Amendments to Service Terms, you may stop using the Platform's services at any time. If you continue to use the Platform's services after the publication of the Amendments, you will be deemed to have read and accepted the Amendments and agree to be bound by the amended Service Terms.

12. Applicable Law and Dispute Resolution

The validity, performance, and interpretation of this Agreement shall be governed by the laws of the People's Republic of China. If any dispute arises between you and the Platform regarding this Agreement, the parties may attempt to resolve it through negotiation. If negotiation fails, either party has the right to bring a lawsuit before the competent court in the place where the Operator of the Platform is located.

13. Miscellaneous

13.1 If any provision of this Agreement is wholly or partially invalid or unenforceable for any reason, the remaining provisions of this Agreement shall remain valid and binding.

13.2 The headings in this Agreement are for convenience only and shall not affect the interpretation of the provisions of this Agreement.

13.3 The Platform has the right to modify the relevant content of this Agreement as needed and shall notify users by posting it on the Company's network platform; continued use of the Company's services by the User shall be deemed consent.

14. Comments and Suggestions

If you have any comments or suggestions regarding the Platform's services, please provide feedback on the Platform's official website (https://yunsapi.com). The Platform is willing to listen to and respect every user's opinion and will make every effort to provide the highest quality service.

15. Governing Law and Jurisdiction

The validity, interpretation, amendment, performance, and dispute resolution of these Service Terms shall be governed by the laws of the People's Republic of China. Any disputes arising out of these Service Terms shall be resolved in accordance with the laws of the People's Republic of China and submitted to the People's Court of Yuhang District, Hangzhou, Zhejiang Province.