Form Company
Starts an LLC or C-Corp formation for a business account. Defaults to an LLC; set entity_type to c_corp to form a C-Corp, which additionally requires share_structure and officer roles on every founder. On submission, the application is validated and the response returns a hosted checkout URL. Once paid, the filing is submitted. Track progress through the account’s company_formation field on Retrieve Account.
Authorizations
An Account API key, account-scoped JWT, App API key, or user OAuth token. Prepend the key or token with Bearer, for example Bearer ***************************.
Headers
A unique key that makes this request safe to retry. See Idempotent requests.
255"d9105228-4a08-46b1-8b91-42fed586d383"
Pins the request to a dated API version.
"2026-09-02-2"
Path Parameters
Account ID, prefixed biz_.
Body
Legal name for the new company.
"Shine Time Auto Detailing"
High-level business category, from the Whop business taxonomy. Valid values are listed on business types and industries glossary.
"brick_and_mortar"
Two-letter code of the US state (or DC) to form the company in. We recommend WY because Wyoming formations are completed the same day.
AL, AK, AZ, AR, CA, CO, CT, DE, DC, FL, GA, HI, ID, IL, IN, IA, KS, KY, LA, ME, MD, MA, MI, MN, MS, MO, MT, NE, NV, NH, NJ, NM, NY, NC, ND, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VT, VA, WA, WV, WI, WY "WY"
The company's founders. Exactly one must be marked is_primary — the responsible party for the filing.
Industry group, from the Whop business taxonomy. Valid values are listed on business types and industries glossary.
"automotive"
Specific industry vertical, from the Whop business taxonomy. Valid values are listed on business types and industries glossary.
"car_wash"
Company mailing address. Required unless use_registered_agent is true.
Business phone number in E.164 format, for example +12125550100. Required unless use_registered_agent is true.
"+xxxxxxxxxxx"
Company website URL.
"https://shinetime.example"
Legal entity ending appended to business_name. LLC formations accept LLC, L.L.C, L.L.C. or Limited Liability Company and default to LLC; C-Corp formations accept Inc, Inc., Incorporated, Corp., Corporation, C Corp, C Corporation, CCorp or Company and default to Inc.. Unrecognized values fall back to the default for the entity type.
LLC, L.L.C, L.L.C., Limited Liability Company, Inc, Inc., Incorporated, Corp., Corporation, C Corp, C Corporation, CCorp, Company "Limited Liability Company"
Legal entity type to form. Defaults to llc.
llc, c_corp "c_corp"
Request expedited EIN processing for an additional fee. Available only when no founder supplies an SSN.
true
Authorized share structure. Required when entity_type is c_corp; ignored for LLCs.
Use the registered agent's address as the company address instead of business_address.
true
Response
application accepted and checkout created
Checkout session ID, prefixed ch_.
"ch_xxxxxxxxxxxxxx"
Hosted checkout URL. Send the buyer here to pay for the formation; the filing is submitted once payment completes.
"https://whop.com/checkout/ch_xxxxxxxxxxxxxx/"
Always usd.
"usd"
Total due at checkout in USD cents.
40000

