| Cover | Jul. 08, 2024 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Jul. 08, 2024 |
| Entity File Number | 001-41751 |
| Entity Registrant Name | MDB Capital Holdings, LLC |
| Entity Central Index Key | 0001934642 |
| Entity Tax Identification Number | 87-4366624 |
| Entity Incorporation, State or Country Code | DE |
| Entity Address, Address Line One | 14135 Midway Road |
| Entity Address, Address Line Two | Suite G-150 |
| Entity Address, City or Town | Addison |
| Entity Address, State or Province | TX |
| Entity Address, Postal Zip Code | 75001 |
| City Area Code | (945) |
| Local Phone Number | 262-9010 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Class A Common Shares, representing Limited Liability Interests |
| Trading Symbol | MDBH |
| Security Exchange Name | NASDAQ |
| Entity Emerging Growth Company | true |
| Elected Not To Use the Extended Transition Period | false |
