Daily brief subscription — a /brief in your webhook every morning

Subscribe once with a prepaid credit pack. Every morning (default 01:00 UTC = 08:00 Asia/Ho_Chi_Minh) the fleet runs POST /brief with your stored input and POSTs the result to your webhook. Your pack is charged the live /brief price at delivery time (currently the $0.01 loss-leader price until 2026-10-30; list $0.05 after) — and only after both the brief call and your webhook return 2xx. A failed delivery charges 0; after 3 consecutive failed days the subscription auto-pauses. Scope, plainly: webhook delivery only — there is no email channel. Need a pack? POST /clinic/creditpack/buy ($1.00).

Manage a subscription

Machine form

POST https://api.mekongtradeintel.com/clinic/brief-subscribe
{ "pack_key": "pk_...", "webhook_url": "https://...",
  "brief_input": { "contract": "0x..." }, "delivery_time": "01:00" }
→ { "ok": true, "subscription": { "id": "bsub_...",
     "next_delivery_ts": "...", "charge_rule": "..." } }

GET  https://api.mekongtradeintel.com/clinic/brief-subscribe?id=bsub_...
POST https://api.mekongtradeintel.com/clinic/brief-subscribe/pause       { "id": "...", "pack_key": "..." }
POST https://api.mekongtradeintel.com/clinic/brief-subscribe/resume      { "id": "...", "pack_key": "..." }
POST https://api.mekongtradeintel.com/clinic/brief-subscribe/unsubscribe { "id": "...", "pack_key": "..." }

Webhook payload: { "event": "daily_brief_delivery", "subscription_id": "...",
  "date": "2026-10-29", "price_usd": 0.01, "charged_usd": 0.01, "brief": { ... } }