What it is
An embeddable chat assistant that answers "where is my order?" A customer pastes a number or asks in plain language, and gets the real status plus what to do next.
Drop it into a support page:
``html <iframe src="https://trackjet.world/embed/chat" style="width:100%;max-width:520px;height:560px;border:0" title="Tracking assistant"></iframe> ``
Grounded, never invented
The answer is built deterministically from actual data — number detection, the live timeline, the [Delay Guard](/docs/delay-guard) and the [customs reminder](/docs/customs-reminder). The assistant cannot make up a status. A real example against the live endpoint:
``bash curl -s -X POST https://trackjet.world/embed/chat/reply \ -H 'Content-Type: application/json' \ -d '{"message":"where is my 00340434786301817348?","locale":"en"}' ` `json { "found": true, "status": "delivered", "answer": "Shipment 00340434786301817348 is currently delivered.", "link": "https://trackjet.world/t/ea2eaad4", "hints": ["Delivered. Need to return it? The shipment page has the steps."], "phrased_by": "deterministic" } ``
If there is no number, it asks for one; if a number is recognised but has no live events yet, it says so honestly and points at the tracker. The structured status and link always come from real data.
Cost control
The deterministic core costs nothing and is the default. An optional natural-language layer can rephrase the answer into a friendlier sentence via a capped, Haiku-class model — but it only restyles the prose; it never changes a fact, and a rephrase that drops the real status is rejected. It is off until enabled, falls back to the deterministic answer on any limit or error, and is metered.
Locales
Replies come in EN, DE or ES based on the locale you send.