Complete prefill

POST 
/kyc/prefill/complete

Completes the prefill process with verified PII data. Dual-mode: with a session_id it completes a Prove prefill session (phone_number and ssn required); without one it performs session-less manual identity entry, allowed only for institutional users behind a server-side feature gate (ssn and phone_number must be absent, address.country_code required).

Request

Responses

200

Prefill completed

202

The submitted SSN already belongs to a different individual's already-verified identity. A pending identity_link_request was created (or reused) instead of completing the prefill for this user; poll GET /kyc/identity-link-requests/mine for its state.

400

Bad request

401

Unauthorized

403

Manual identity entry (no session_id) is not permitted — the caller is not an institutional user or the feature is disabled.

404

Session not found

409

Identity conflict. Either the requester's most recent identity_link_request was already declined, expired, or approved (see /kyc/identity-link-requests/{id}/decline) — a new pending request is not silently created; contact support to proceed — or the identity was verified on the legacy platform / has a duplicate tax ID.

412

Terms and conditions not accepted

500

Internal server error

503

Service unavailable