v3.21.2

Cover	Aug. 11, 2021
Affiliate, Collateralized Security [Line Items]
Document Type	8-K
Amendment Flag	false
Document Period End Date	Aug. 11, 2021
Entity File Number	001-39428
Entity Registrant Name	Kismet Acquisition One Corp
Entity Central Index Key	0001814824
Entity Tax Identification Number	00-0000000
Entity Incorporation, State or Country Code	D8
Entity Address, Address Line One	850 Library Avenue
Entity Address, Address Line Two	Suite 204
Entity Address, City or Town	Newark
Entity Address, State or Province	DE
Entity Address, Postal Zip Code	19715
City Area Code	(302)
Local Phone Number	738-6680
Written Communications	true
Soliciting Material	false
Pre-commencement Tender Offer	false
Pre-commencement Issuer Tender Offer	false
Entity Emerging Growth Company	true
Elected Not To Use the Extended Transition Period	false
Entity Information, Former Legal or Registered Name	Not Applicable
Units, each consisting of one Ordinary Share and one-half of one Warrant
Affiliate, Collateralized Security [Line Items]
Title of 12(b) Security	Units, each consisting of one Ordinary Share and one-half of one Warrant
Trading Symbol	KSMTU
Security Exchange Name	NASDAQ
Ordinary Shares, no par value
Affiliate, Collateralized Security [Line Items]
Title of 12(b) Security	Ordinary Shares, no par value
Trading Symbol	KSMT
Security Exchange Name	NASDAQ
Warrants, each whole warrant exercisable for one Ordinary Share at an exercise price of $11.50
Affiliate, Collateralized Security [Line Items]
Title of 12(b) Security	Warrants, each whole warrant exercisable for one Ordinary Share at an exercise price of $11.50
Trading Symbol	KSMTW
Security Exchange Name	NASDAQ

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For the EDGAR submission types of Form 8-K: the date of the report, the date of the earliest event reported; for the EDGAR submission types of Form N-1A: the filing date; for all other submission types: the end of the reporting or transition period. The format of the date is YYYY-MM-DD.

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The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word 'Other'.

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Address Line 1 such as Attn, Building Name, Street Name

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Name of the City or Town

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Name of the state or province.

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A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK.

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Commission file number. The field allows up to 17 characters. The prefix may contain 1-3 digits, the sequence number may contain 1-8 digits, the optional suffix may contain 1-4 characters, and the fields are separated with a hyphen.

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Former Legal or Registered Name of an entity

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The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC.

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The Tax Identification Number (TIN), also known as an Employer Identification Number (EIN), is a unique 9-digit value assigned by the IRS.

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Local phone number for entity.

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Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act.

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Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as written communications pursuant to Rule 425 under the Securities Act.

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Kismet Acquisition One Corp 8-K