| GET | /api/auth/me | Resolve current auth context and plan code. |
| GET | /api/billing/config | Read billing-provider readiness and available priced plans. |
| POST | /api/billing/checkout-session | Create a public checkout session when billing is configured. |
| GET | /api/billing/session/:sessionId | Reconcile a completed checkout session and reveal the issued token when available. |
| GET | /api/entities/search | Search live gold entities. |
| GET | /api/catalog/search | Search cataloged data sources. |
| POST | /api/plan | Persist a plan from one user query. |
| POST | /api/execute | Execute a query and persist an artifact. |
| POST | /api/chat | One-call chat surface over the same planner backend. |
| GET | /api/follows | Read persisted follow rows. |
| GET | /api/feed | Read live feed events. |