Validate an LLC formation request
Check an LLC formation payload against state compliance rules without creating a filing or business record. Returns every compliance error in one pass, so you can pre-flight a submission.
Accepts a partial or complete payload, including the same jurisdiction-specific fields as the create endpoint (extra top-level properties, plus jurisdiction_registered_agent for state-specific registered-agent fields). The formation requirements endpoint lists what a given state expects.
Any top-level field the state does not accept is reported under warnings — those are dropped rather than rejected when you create the filing, so this is the only place they show up.
This checks state compliance rules only. Some field-format checks run on the create endpoint, so a payload that passes here can still be rejected when you submit it.
Authorizations
Enter your API key in the format: sk_test_xxxxx or sk_live_xxxxx
Response
Validation result
True when the payload passed every compliance check
All compliance errors found, empty when valid
Non-blocking observations: a top-level field this jurisdiction does not accept (UNKNOWN_FIELD), an EIN field the business's entity type is never asked (NOT_APPLICABLE), or a declared LLC member count that disagrees with the listed members (MEMBER_COUNT_MISMATCH). None of these rejects the create — the field is ignored or filed as declared — so this is the only place they surface. Empty when there is nothing to report.

