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Cover - USD ($)
12 Months Ended
Dec. 31, 2022
Mar. 30, 2023
Jun. 30, 2022
Document Type 10-K    
Amendment Flag false    
Document Annual Report true    
Document Transition Report false    
Document Period End Date Dec. 31, 2022    
Document Fiscal Period Focus FY    
Document Fiscal Year Focus 2022    
Current Fiscal Year End Date --12-31    
Entity File Number 001-41344    
Entity Registrant Name METAL SKY STAR ACQUISITION CORPORATION    
Entity Central Index Key 0001882464    
Entity Tax Identification Number 00-0000000    
Entity Incorporation, State or Country Code E9    
Entity Address, Address Line One 132 West 31st Street    
Entity Address, Address Line Two 9th Floor    
Entity Address, City or Town New York    
Entity Address, State or Province NY    
Entity Address, Postal Zip Code 10001    
City Area Code (332)    
Local Phone Number 237-6141    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Non-accelerated Filer    
Entity Small Business true    
Entity Emerging Growth Company true    
Elected Not To Use the Extended Transition Period false    
Entity Shell Company true    
Entity Public Float     $ 113,735,000
Entity Common Stock, Shares Outstanding   8,819,676  
Documents Incorporated by Reference [Text Block]

List hereunder the following documents if incorporated by reference and the Part of the Form 10-K (e.g., Part I, Part II, etc.) into which the document is incorporated:

 

None.

   
ICFR Auditor Attestation Flag false    
Auditor Firm ID 1195    
Auditor Firm ID UHY LLP    
Auditor Firm ID New York, New York    
Units, each consisting of one Ordinary Share, $0.001 par value, one redeemable warrant, and one right      
Title of 12(b) Security Units, each consisting of one Ordinary Share, $0.001 par value, one redeemable warrant, and one right    
Trading Symbol MSSAU    
Security Exchange Name NASDAQ    
Ordinary Shares, $0.001 par value      
Title of 12(b) Security Ordinary Shares, $0.001 par value    
Trading Symbol MSSA    
Security Exchange Name NASDAQ    
Redeemable warrants, each warrant exercisable for one Ordinary Share at an exercise price of $11.50 per share      
Title of 12(b) Security Redeemable warrants, each warrant exercisable for one Ordinary Share at an exercise price of $11.50 per share    
Trading Symbol MSSAW    
Security Exchange Name NASDAQ    
Rights to receive one-tenth (1/10      
Title of 12(b) Security Rights to receive one-tenth (1/10th) of one Ordinary Share    
Trading Symbol MSSAR    
Security Exchange Name NASDAQ