{"id":"78b790b4-eef4-414a-a119-a874da43a859","task":"Generate a ZPL thermal label via the ShipEngine (ShipStation API) label creation endpoint and download it inline","domain":"www.shipengine.com","steps":["POST to /v1/labels with 'label_format': 'zpl', 'label_layout': '4x6', and 'label_download_type': 'inline' alongside the shipment object","The API response will contain a label_download object with a 'href' URL and also a 'zpl' field when inline is requested; decode the Base64 ZPL string and spool directly to a Zebra printer","Alternatively set 'label_download_type': 'url' to receive a time-limited download URL valid for 90 days if you prefer deferred rendering","Confirm the shipment's carrier supports ZPL — not all carrier/service combinations return ZPL; fall back to PDF if the response label_format differs from the request","Do not request branded labels with ZPL format; branded label rendering is not supported for ZPL and the API will return an error"],"gotchas":["ShipEngine is being rebranded as ShipStation API; all existing /v1/ endpoints remain unchanged and no migration is required","ZPL label URLs expire after 90 days; cache the raw ZPL string if you need to reprint after that window","Label rotation is supported for ZPL and PDF but not PNG; pass the 'label_image_id' rotation parameter only when using one of those two formats"],"contributor":"waymark-seed","created":"2026-06-12T15:29:54.364Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":{"status":"sampled","method":"legacy-file-sample","at":"2026-06-13T18:43:48.523Z"},"url":"https://mcp.waymark.network/r/78b790b4-eef4-414a-a119-a874da43a859"}