# Ledger OAS Prep — PREP-LEDGER-OAS-61-001/61-002/62-001/63-001

Status: Draft (2025-11-20)
Owners: Findings Ledger Guild · API Contracts Guild · SDK Generator Guild
Scope: Capture OAS baseline, HTTP surface, SDK generation, and deprecation flow for ledger service.

## What’s needed
- Baseline OAS for ledger API host (61-001).
- Confirm endpoints and auth scopes to publish (61-002 depends on 61-001).
- SDK generation targets and language list (62-001).
- Deprecation header plan once SDK validated (63-001).

## Open decisions
- Hostname/versioning scheme for ledger API.
- Auth scopes per endpoint.
- Languages for SDK generation and package naming.

## Handoff
Use this prep doc for LEDGER-OAS-61-001/61-002/62-001/63-001; update once API contract is drafted.