{"service":"UPI Tracker API","version":"1.0.0","status":"operational","endpoints":{"auth":"POST /auth/signup, /auth/login, /auth/logout, /auth/refresh, GET /auth/me","upload":"POST /upload/","transactions":"GET /transactions/","export_new":"POST /export/new","export_append_preview":"POST /export/append/preview","export_append_confirm":"POST /export/append/confirm","activity":"GET /activity/","billing":"GET /billing/plans, POST /billing/subscribe, POST /billing/verify, POST /billing/webhook, GET /billing/subscription, POST /billing/cancel"}}