API DocsAPI & AppsNoticesForumMSU SpaceMSU Resource SearchPrompt Tips

[UPDATE&INTRODUCTION] Updates to Builder Terms and API Privacy Policy, and New MSU Builder IP Usage Guide

[Update – November 5, 2026]
The Key Updates to the Builder Terms and the Key Updates to the API Privacy Policy have been updated in this notice.

 

 

[Update – October 28, 2026]
The effective date of this update has been changed from October 29, 2026 to November 12, 2026.

The details of the changes are also being revised and will be shared in a further update to this notice.

We apologize for any inconvenience and appreciate your understanding.

 

 

 

 

The Builder Terms of Use (the “Builder Terms”) and the MapleStory Universe Open API Developer Privacy Policy (the “API Privacy Policy”) will be updated, and the MSU Builder IP Usage Guide will be newly introduced. All changes will take effect on November 12, 2026.

 

■ New Document

  • MSU Builder IP Usage Guide
     

■ Updated Documents

  • Builder Terms of Use
  • MapleStory Universe Open API Developer Privacy Policy
     

■ Effective Date

  • October 29, 2026 November 12, 2026

 

■ Builder Terms Re-Consent Required

Because the Builder Terms have been updated, all Builders must review the updated Builder Terms and agree to them again. You will be asked to agree to the updated Builder Terms the next time you sign in to the Builder Center. The updated Builder Terms include, among other changes, new terms on monetization (Article XIII), a prohibition on converting or withdrawing in-app value of a Synergy App (Article VI), the prevention of hacking, macros and bots (Article XI), and governing law and dispute resolution (Article XXII), including a class action waiver and a jury trial waiver. Please read them carefully before you agree.

 

■ MSU Builder IP Usage Guide and API Privacy Policy

The MSU Builder IP Usage Guide sets out the rules for using MSU IP in Synergy Apps and forms part of the Builder Terms. By agreeing to the updated Builder Terms, you also agree to the MSU Builder IP Usage Guide. Please review it, along with the updated API Privacy Policy, using the links above.

 

■ Key Updates to the Builder Terms

Updated Terms

[UPDATED]

Preamble

To participate in the Builder Program, you and your Synergy App, as applicable, must comply with these Builder Terms, the MapleStory Universe Open API Terms of Service (the "MSU API Terms"), the MapleStory Universe Open API Developer Privacy Policy (the "MSU API Privacy Policy"), the EULA and the Additional Terms. The Additional Terms include the MSU Builder IP Usage Guide (the "Builder IP Usage Guide"), which sets out the rules that apply to the use of MSU IP by Builders, and forms an integral part of these Builder Terms. … If and to the extent the EULA, the MSU API Terms, and these Builder Terms all apply to you, the MSU API Terms shall govern with respect to matters related to the use of the MSU APIs, the Builder IP Usage Guide shall govern with respect to matters related to the use of MSU IP in Synergy Apps, these Builder Terms shall govern with respect to matters specific to the Builder Program, and the EULA shall apply to all other matters, unless expressly stated otherwise in the relevant terms. ... Any changes to these Builder Terms, the MSU API Terms, the EULA, and/or the Additional Terms shall be effective as of the date specified in our prior notice.

[UPDATED]

I. OWNERSHIP OF SYNERGY APP.

For the avoidance of doubt, your ownership of a Synergy App shall not extend to any MSU IP incorporated in or underlying such Synergy App, which shall remain subject to Article II.

[UPDATED]

II. OWNERSHIP OF MSU IP.

All MSU IP (as such term is defined under the EULA) is owned by the Company, its affiliates and/or their licensors and is protected by applicable copyright laws, trademark laws, proprietary rights and laws, and other intellectual property rights and laws.

[UPDATED]

III. LICENSE TO COMPANY.

To the maximum extent permitted by applicable law, (i) where your Synergy App contains any derivative work of MSU IP, the foregoing license shall also extend to the licensors of the Company and its affiliates, and (ii) you waive and agree to refrain from exercising any moral rights of paternity, publication, reputation, integrity, or attribution with respect to the Company's and other Users' use and enjoyment (including the creation and exploitation of derivative works based on your derivative works of MSU IP) of the Synergy App in connection with the MSU Community.

[UPDATED]

IV. LICENSE TO USE MSU COMMUNITY AND MSU IP.

The Company grants you a limited, non-exclusive, revocable, non-sublicensable and non-transferable license to use the MSU Community and MSU IP solely and exclusively for the creation, operation, update and maintenance of the Synergy App created by you, and as otherwise set forth in these Builder Terms and the Builder IP Usage Guide. … Except as expressly permitted in these Builder Terms or the EULA, any commercial exploitation of the MSU Community or MSU IP without express prior permission from the Company or the applicable rights holder is strictly prohibited, and any monetization of a Synergy App shall be subject to Article XIII.

[ADDED]

IV. LICENSE TO USE MSU COMMUNITY AND MSU IP.

Such license is subject to your continued compliance with these Builder Terms, the MSU API Terms, the EULA and the Additional Terms. It covers only MSU IP made available by the Company and other Permitted IP (as defined in the Builder IP Usage Guide), and applies only while your Synergy App remains an Approved Synergy App, under the Builder IP Usage Guide. … You shall not transfer, modify or otherwise affect any Digital Asset issued by the Company in MSU and held by a User, and shall cease its use in the Synergy App once the User no longer holds it.

[UPDATED]

V. RIGHT TO MODERATE OR REMOVE.

You shall, upon request, provide the Company with such information regarding your Synergy App as the Company may reasonably request for such purposes. … The Company’s rights under this Article are limited to reviewing your Synergy App and suspending, disabling, removing or restricting access to it, or to MSU IP, the MSU APIs and the MSU login. The Company does not, and shall have no right or obligation to operate, manage, modify or otherwise control your Synergy App as operated by you, and you shall remain solely responsible for making any change to your Synergy App. Notwithstanding the foregoing, no review, approval or promotion of a Synergy App by the Company, including any onboarding or monetization approval or any promotion through the Company's official channels, constitutes a legal or regulatory review, an endorsement or a representation that the Synergy App complies with applicable laws and regulations. You remain solely responsible for such compliance in every jurisdiction where it is made available, as further set out in Article XVII.

[UPDATED]

VI. PROHIBITED ACTIVITIES.

  • Access and use any Synergy App not developed by you, other than as a User in accordance with the EULA

[ADDED]

VI. PROHIBITED ACTIVITIES.

  • Use MSU IP, or any other intellectual property, asset or content, in breach of the Builder IP Usage Guide
  • Use any artificial intelligence tool to generate, create or distribute any content which is prohibited under these Builder Terms, or use MSU IP to train or fine-tune any artificial intelligence model
  • Allow any in-app currency, item or other value of a Synergy App (other than Digital Assets issued by the Company in MSU) to be converted into or withdrawn as fiat currency or any other thing of monetary value, directly or indirectly, whether or not the Synergy App is monetized, without the Company’s prior written approval

[UPDATED]

VIII. EARNED NESO.

  1. Accrual and Ownership of Earned NESO. Unless otherwise approved by the Company in writing in accordance with Article XIII, all transactions with Users in connection with your operation of Synergy Apps shall be settled exclusively in NESO and conducted solely through the methods designated or provided by the Company.

[ADDED]

VIII. EARNED NESO.

  1. Alternative Arrangement. Notwithstanding anything to the contrary in this Article VIII, the Company may designate or agree with you in writing (including in the applicable fee arrangement) a method for the receipt and settlement of Earned NESO that differs from the method described in this Article VIII.

[UPDATED]

X. TERMINATION.

  1. The Company reserves the right, in its sole discretion and at any time, to suspend, terminate, or delete your account, and take any other action it deems necessary, including suspending or restricting access to any Synergy App, if it has determined that you have violated any applicable laws and regulations, applicable government policies, any provision of these Builder Terms, the Builder IP Usage Guide, the EULA, the MSU API Terms, or any other applicable policy, or if you have failed to report or pay any amount due to the Company under Article XIII.

  2. … Upon termination, you shall immediately discontinue all use of MSU IP, including MSU Marks, and delete all copies thereof in accordance with the Builder IP Usage Guide.

[ADDED]

XI. SUPPORT; ASSISTANCE.

(e) prevent, detect and remedy any hacking, macro, bot or other abnormal play in your Synergy App. If you fail to do so within ten (10) business days after the Company’s notice, the Company may suspend the license granted under Article IV and your access to the MSU APIs and the MSU login, and the Company may restrict such access earlier where it reasonably considers that such abnormal play may cause harm to Users, the MSU Community or any Digital Asset.

[UPDATED]

XII. DISPUTES WITH USERS, OTHER BUILDERS AND THIRD PARTIES.

The article title has been changed from "DISPUTE RESOLUTION."

[REMOVED]

XII. 4. Disputes between Builder and the Company. Disputes between a Builder and the Company are now addressed in Article XXII.

[UPDATED]

XIII. TRANSACTIONS WITH USERS, FEES, AND MONETIZATION.

  1. Transactions with Users and Fees. When you and a User engage in any transaction on the MSU Community, the Company is entitled to certain fees calculated based on the total amount of NESO exchanged in, or any other revenue generated from such transaction.

[ADDED]

XIII. TRANSACTIONS WITH USERS, FEES, AND MONETIZATION.

  1. Monetization. Unless otherwise approved by the Company in writing, you shall not monetize a Synergy App. Any approved monetization shall be conducted solely in the manner approved by the Company, and in accordance with the applicable fee arrangement and any conditions or guidelines the Company may specify from time to time. You shall be the seller in all transactions with Users, shall clearly inform Users that the Company is not a party to such transactions, and shall be solely responsible for such transactions, including refunds, consumer protection, Taxes and compliance with all applicable laws and regulations. Unless otherwise set forth in the applicable fee arrangement, (i) you shall report your revenue and pay the fees due to the Company on a monthly basis, and shall provide the Company with such records and information as the Company may reasonably request to verify the same, and (ii) the Company shall not be required to return any fees previously paid, including in the event of any refund or chargeback. If you fail to report or pay any amount when due, or if the unpaid amount exceeds the threshold set forth in the applicable fee arrangement, the Company may, immediately and without prior notice or liability, (i) suspend your access to the MSU APIs, the integration of the MSU login with your Synergy App, any monetization feature and the availability of your Synergy App on the MSU Community, (ii) suspend or cancel the distribution of any Rewards and suspend the processing of any Transfer Request, and (iii) audit your relevant records. If such failure is not cured within the cure period set out in the fee arrangement or, if none, thirty (30) days after the Company's written demand, or if you have intentionally concealed or misreported any revenue, the Company may terminate these Builder Terms with immediate effect, whereupon the license granted under Article IV and your access to the MSU APIs (including any API key) shall be revoked. The foregoing shall be in addition to, and without prejudice to, any other right or remedy available to the Company under the applicable fee arrangement or applicable law, including any late payment interest, audit costs, damages or other amounts payable thereunder. You shall be solely responsible to Users for any consequence of such suspension or termination. This Article XIII shall survive termination in respect of revenue generated before termination.

[UPDATED]

XIV. ACKNOWLEDGEMENTS AND FURTHER AGREEMENTS.

v. You shall ensure that your Synergy App does not provide, and you shall not otherwise make available, any services or content to (x) any User who is under nineteen (19) years of age or the age of legal majority in such User's jurisdiction, whichever is higher, and (y) any User located in any jurisdiction where such provision is prohibited by applicable laws or regulations, including but not limited to the Restricted Parties.

[ADDED]

XIV. ACKNOWLEDGEMENTS AND FURTHER AGREEMENTS.

viii. If your Synergy App contains any content generated by an artificial intelligence tool, you shall be solely responsible for such content, including for securing all rights necessary for its use and for ensuring that it does not infringe any third-party right, and you shall comply with the requirements regarding the use of generative artificial intelligence set forth in the Builder IP Usage Guide.

[UPDATED]

XV. THIRD-PARTY PROVIDERS.

You are solely responsible for complying with the terms and policies of any third-party service used in connection with your Synergy App, including any application store, hosting provider, payment processor or advertising network, and the Company shall have no obligation to issue any confirmation or authorization of intellectual property rights to any such third party.

[UPDATED]

XVIII. TEAM.

v. … Notwithstanding the foregoing, any Team Member who commits an act which infringes any intellectual property right or other right of a third party shall also be personally liable for such act.

[UPDATED]

XIX. DISCLAIMERS; LIMITATION OF LIABILITY.

THE MAXIMUM AGGREGATE LIABILITY OF EACH OF THE RELATED PARTIES (AS DEFINED BELOW) FOR ALL DAMAGES, LOSSES AND CAUSES OF ACTION, WHETHER IN CONTRACT, TORT (INCLUDING, WITHOUT LIMITATION NEGLIGENCE), STRICT LIABILITY OR OTHERWISE, SHALL BE THE GREATER OF NESO OR NXPC AMOUNTING TO $100 USD OR THE FEES IN NESO OR ANY OTHER CURRENCY YOU PAID, IF ANY, IN ACCORDANCE WITH ARTICLE XIII ABOVE DURING THE THREE MONTH PERIOD PRECEDING THE DATE OF THE CLAIM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.

[ADDED]

XIX. DISCLAIMERS; LIMITATION OF LIABILITY.

MSU IP IS PROVIDED "AS IS" AND "AS AVAILABLE" AND MAY BE MODIFIED, SUSPENDED OR WITHDRAWN AT ANY TIME. TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, THE RELATED PARTIES DISCLAIM ALL WARRANTIES IN RESPECT OF MSU IP, INCLUDING TITLE, NON-INFRINGEMENT AND FITNESS FOR A PARTICULAR PURPOSE, AND SHALL NOT BE LIABLE FOR ANY LOSS ARISING FROM (A) YOUR USE OF MSU IP OR OF ANY UNLISTED IP, UNOFFICIAL CONTENT OR AI-GENERATED CONTENT (EACH AS DEFINED IN THE BUILDER IP USAGE GUIDE), OR (B) ANY MODIFICATION, SUSPENSION, WITHDRAWAL OR REMOVAL OF MSU IP OR YOUR SYNERGY APP, OR ANY SUSPENSION OR TERMINATION OF YOUR LICENSE.

[ADDED]

XX. BUILDER INDEMNITY.

(g) your use of any intellectual property, asset or content which is not made available by the Company, including any Unlisted IP, Unofficial Content or AI-Generated Content (each as defined in the Builder IP Usage Guide), or any use of MSU IP beyond the scope permitted hereunder.

[UPDATED]

XXI. MISCELLANEOUS.

  1. Entire Agreement. These Builder Terms, together with the EULA, the MSU API Terms, the Additional Terms and any applicable fee arrangement, constitute the entire agreement between you and the Company, superseding any prior or contemporaneous communications and proposals (whether oral, written or electronic) between you and the Company.

[ADDED]

XXII. GOVERNING LAW AND DISPUTE RESOLUTION.

PLEASE READ THIS ARTICLE CAREFULLY BECAUSE IT AFFECTS YOUR RIGHTS. BY AGREEING TO THESE BUILDER TERMS, YOU WAIVE YOUR RIGHT TO A TRIAL BY JURY AND YOUR RIGHT TO PARTICIPATE IN A CLASS ACTION, COLLECTIVE ACTION, MASS ACTION OR OTHER REPRESENTATIVE ACTION AGAINST THE COMPANY.

  1. Governing Law. The rights and obligations of the Company, Builders and other parties hereunder and the interpretation of these Builder Terms will be governed by the laws of Abu Dhabi Global Market (ADGM), without giving effect to its principles of conflicts of law.

  2. Dispute Resolution. If either party brings against the other party any proceeding arising out of or in connection with these Builder Terms or the Builder Program, that party may bring proceedings only in the courts of ADGM or through any amicable dispute resolution mechanism established under ADGM rules, and in no other courts or jurisdictions, and each party hereby submits to the exclusive jurisdiction of those courts for purposes of any such proceeding. Notwithstanding the foregoing, the Company may seek injunctive or other equitable relief in any court of competent jurisdiction to protect the intellectual property rights of the Company, its affiliates or their licensors. To the maximum extent permitted by applicable law, you hereby agree that any claim you may bring against the Company will be solely in your individual capacity, and not as a plaintiff or class member in any purported class, collective, consolidated, mass, representative, or private attorney general proceeding. By agreeing to these Builder Terms, you are waiving (i) your right to participate in a class, collective, mass or representative action in court or arbitration, whether as a class representative or class member, including any class claims seeking provisional or injunctive relief, and (ii) your right to join or consolidate your claims with claims of any other person.

  3. Jury Trial Waiver. TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, YOU AND THE COMPANY EACH IRREVOCABLY WAIVE ANY RIGHT TO A TRIAL BY JURY IN ANY PROCEEDING ARISING OUT OF OR IN CONNECTION WITH THESE BUILDER TERMS OR THE BUILDER PROGRAM.

 

 

■ Key Updates to the API Privacy Policy

Updated Terms

[UPDATED]

Purpose, Section 1.2

We process your Personal Data on the legal bases set out in Section 5, which include the performance of our contract with you, compliance with our legal obligations and our legitimate interests. Where we rely on your consent, we will obtain it separately and you may withdraw it at any time.

[ADDED]

Section 4. Data Processing Principles Followed and Automated Processing

We may use automated means, including through our third-party verification service providers, to verify your identity and assess risk as part of our KYC/KYB and fraud prevention processes. Cases flagged for further review are reviewed by our personnel. If your registration or access is denied as a result of automated processing, you may request human review of, and contest, that decision by contacting us at terms_policy@nexpace.io.

[ADDED]

Section 5. Types of Data, Purposes of Processing and Legal Basis for Processing – Event and promotion information

  • Personal Data processed: Event, campaign or promotion identifiers and your entry and participation records; Eligibility and winner selection records; Contact and delivery details needed to provide a prize or benefit; Identifiers needed for you to receive a benefit on a partner service
  • Purpose/activity: Operate events, campaigns and promotions and verify entries; Select winners and deliver prizes and benefits; Provide benefits offered together with a collaboration partner; Prevent duplicate, automated or fraudulent entries; Comply with tax, reporting and record-keeping obligations relating to prizes
  • Legal Basis: Your consent; Performance of our contract with you; Necessary to comply with a legal obligation
  • Mode of Collection: Directly from you; Through collaboration partners or agencies operating an event

Where required under the law of your country, we will obtain your consent and rely on it as the legal basis for the relevant processing.

[REMOVED]

Section 5. Social Contact Information (Telegram account, X account)

[ADDED]

10.3.5. Promotional and collaboration partners

We may share your Personal Data with partners with whom we run joint events, promotions or campaigns, where you choose to take part, in order to operate the activity and deliver any prizes or rewards. We will identify the partner and the Personal Data to be shared before you take part and will share it only with your consent or as otherwise permitted under applicable laws.

[UPDATED]

11.1.5. Right to object to processing

Where we process your Personal Data on the basis of our legitimate interests, you have the right to object to that processing on grounds relating to your particular situation. You may also object at any time to processing for direct marketing purposes, including profiling.

[UPDATED]

17.11.

Where a Personal Data breach occurs, we shall notify the Commissioner of Data Protection without undue delay and, where feasible, within seventy-two (72) hours after becoming aware of it, unless the breach is unlikely to result in a risk to your rights. Where the breach is likely to result in a high risk to your rights, we shall also communicate it to you without undue delay.

 

 

 

 

 

⚠️ Important Notes

※ If you do not agree to the updated Builder Terms, please stop using the Builder Program, the MSU APIs and MSU IP before the effective date. If you continue to use them on or after the effective date, you will be deemed to have agreed to the updated Builder Terms, including the MSU Builder IP Usage Guide, to the extent permitted by applicable law.

※ The updated API Privacy Policy applies from the effective date. Please review it carefully.