UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-A

FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES
PURSUANT TO SECTION 12(b) OR 12(g) OF THE

SECURITIES EXCHANGE ACT OF 1934

StablecoinX Inc.

(Exact name of registrant as specified in its charter)

6160 Warren Parkway, Suite 100

Frisco, TX 75034

(Address of principal executive offices and zip code)

Securities to be registered pursuant to Section 12(b) of the Act:

If this form relates to the registration of a class of securities pursuant to Section 12(b) of the Exchange Act and is effective pursuant to General Instruction A.(c) or (e), please check the following box. ☒

If this form relates to the registration of a class of securities pursuant to Section 12(g) of the Exchange Act and is effective pursuant to General Instruction A.(d) or (e), please check the following box. ☐

If this form relates to the registration of a class of securities concurrently with a Regulation A offering, check the following box. ☐

Securities Act registration statement or Regulation A offering statement file number to which this form relates (if applicable): 333-290567

Securities to be registered pursuant to Section 12(g) of the Act:
N/A

Item 1. Description of Registrant’s Securities to be Registered.

The securities to be registered hereby are the shares of Class A common stock, par value $0.0001 per share (the “Class A Common Stock”), and warrants to purchase shares of Class A Common Stock (“Public Warrants”), of StablecoinX Inc., a Delaware corporation (the “Company”). The description of the shares of Class A Common Stock and Public Warrants is set forth under the heading “Description of StablecoinX’s Securities” in the final prospectus, dated February 17, 2026, filed with the Securities and Exchange Commission on February 17, 2026 and forming a part of the Company’s registration statement on Form S-4 (File No. 333-290567) (the “Registration Statement”) to which this Form 8-A relates, is incorporated by reference. Any form of prospectus or prospectus supplement to the Registration Statement that includes such descriptions and that are subsequently filed are hereby also incorporated by reference herein.

Item 2. Exhibits.

In accordance with the “Instructions as to Exhibits” with respect to Form 8-A, no exhibits are required to be filed as part of this registration statement because no other securities of the registrant are registered on The Nasdaq Stock Market LLC and the securities registered hereby are not being registered pursuant to Section 12(g) of the Securities Exchange Act of 1934, as amended.

SIGNATURE

Pursuant to the requirements of Section 12 of the Securities Exchange Act of 1934, the registrant has duly caused this registration statement to be signed on its behalf by the undersigned, thereunto duly authorized.

Date: June 25, 2026