[Aug 4, 2026] Standalone Lien Filing

You can now create a UCC-1 lien filing without first running a KYB search. A new endpoint, POST /lien_submissions, opens a draft filing where the debtor is entered manually rather than pre-filled from an existing business or person record.

The existing anchored routes - POST /businesses/{business_id}/lien_submissions and POST /people/{person_id}/lien_submissions - continue to work unchanged for filings tied to a profile.

Standalone filings manage every party through the debtors list on the filing body. The assigned_debtor field is valid only on anchored filings; sending it on a standalone filing returns error 479 (HTTP 422). Everything downstream - amendments, attachments, and POST /lien_submissions/{filing_id}/submit - behaves the same for standalone and anchored filings. In the Console, "File a Lien" on the lien filings list creates a standalone draft directly.

No integration changes required, the new endpoint is additive.