SEP Acquisition Corp - Ordinary Shares (SEPA) S-1/A IPO registration (amended)

Exhibit 23.1

INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM’S CONSENT

We consent to the inclusion in this Registration Statement of  Mercury Ecommerce Acquisition Corp. (the “Company”) on Amendment No. 1 to Form S-1 (File No. 333-254726) of our report dated March 25, 2021, except for Note 7 and the second paragraph of Note 9, as to which the date is June 3, 2021, which includes an explanatory paragraph as to the Company’s ability to continue as a going concern, with respect to our audit of the financial statements of Mercury Ecommerce Acquisition Corp. as of March 4, 2021 and for the period from March 1, 2021 (inception) through March 4, 2021, which report appears in the Prospectus, which is part of this Registration Statement. We also consent to the reference to our Firm under the heading “Experts” in such Prospectus.

/s/ Marcum llp

Marcum llp

Houston, TX

June 3, 2021