사회보험통합징수포털 로그인
si4n__session__loginCall this FIRST before any other tool for this provider. Signs in with the workplace certificate and stores the session the other si4n tools reuse. Call it first; call it again if a tool reports the session expired. For an authenticated call, generate and save request_idempotency_key before the first request. Reuse it with the same arguments only to recover that request after a lost response; use a new key for a new execution. Without it, calling again remains a new request. This optional key is not available to anonymous taste calls. Keep any provider-specific idempotency_key unchanged; it is a different field. 호출마다 토큰 1소진
Input Schema
| Name | Required | Description | Default |
|---|---|---|---|
| account_link_id | No | Account link ID (UUID v4). Optional — the server auto-resolves from your API key when omitted. Provide explicitly only when you have multiple certificates for the same provider. Each institution has a separate ID (Hometax != NHIS != NPS != FourInsure). | |
| request_idempotency_key | No | Optional same-request recovery key for authenticated calls; see the tool description. | |
| business_registration_no | Yes | 사업자등록번호 - 숫자 열 자리(하이픈 없이). 예: 1234567890. |