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POST
Register LLC

Authorizations

Authorization
string
header
required

A company API key, company scoped JWT, app API key, or user OAuth token. You must prepend your key/token with the word 'Bearer', which will look like Bearer ***************************

Headers

Api-Version-Date
string

Pins the request to a dated API version.

Example:

"2026-07-08-1"

Path Parameters

account_id
string
required

Account ID, prefixed biz_.

Body

application/json
business_info
object
required

The company to form.

founders
object[]
required

The company's founders. Exactly one must be marked is_primary — the responsible party for the filing.

Response

application accepted and checkout created

checkout_session_id
string
required

Checkout session ID, prefixed ch_.

checkout_url
string
required

Hosted checkout URL. Send the buyer here to pay for the formation; the filing is submitted once payment completes.

currency
string
required

Always usd.

total
integer
required

Total due at checkout in USD cents.