STO Express Tracking API & MCP
Query live STO Express (sto) package status and scan history in a single synchronous GET request or MCP tool call. STO numbers share their shape with other carriers, so pass ?carrier=sto.
Overview & Quick Facts
| Property | Value |
|---|---|
Carrier slug (?carrier=) | sto |
| Brand aliases | STO Express, 申通快递, 申通 |
| Category | Regional (China domestic parcels) |
| Single-package REST endpoint | GET https://api.lastscanned.com/v1/track/{trackingNumber}?carrier=sto |
| Batch REST endpoint | GET https://api.lastscanned.com/v1/track?numbers=...,...&carrier=sto |
MCP server (https://mcp.lastscanned.com) | track_package, track_packages, list_carriers |
| Authentication & pricing | Authorization: Bearer lsk_live_... · 1 free keyless lookup/day per IP |
Tracking Number Formats & Auto-Detection
| Pass | Rule / Regex | Check Digit | Examples |
|---|---|---|---|
Pass 1 (matches) | none | none | none |
Pass 2 (mayMatch) | none | none | none |
STO waybills are 12 to 15 digits (for example 77xxxxxxxxxxxxx), a shape other carriers also use, so they are not auto-detected: pass ?carrier=sto.
Synchronous GET Request & Normalized JSON Response
curl -s "https://api.lastscanned.com/v1/track/773000000000001?carrier=sto" \
-H "Authorization: Bearer $LASTSCANNED_API_KEY"{
"carrier": "sto",
"trackingNumber": "773000000000001",
"status": "delivered",
"statusDescription": "【驿站】包裹已签收！",
"service": null,
"deliveredAt": "2026-10-01T05:40:37Z",
"deliveredAtLocal": "2026-10-01T13:40:37",
"signedBy": "凭取件码签收",
"destination": null,
"message": null,
"events": [
{
"timestamp": "2026-10-01T05:40:37Z",
"localTime": "2026-10-01T13:40:37",
"status": "delivered",
"description": "【驿站】包裹已签收！",
"location": "海南省, 定安县, 海南定安县公司",
"code": "客户签收"
},
{
"timestamp": "2026-09-30T14:20:16Z",
"localTime": "2026-09-30T22:20:16",
"status": "in_transit",
"description": "【海口市】快件已发往 海南定安县公司",
"location": "海南省, 海口市, 海南海口转运中心",
"code": "发件"
}
]
}Notes
- Language: STO's scan text is Chinese.
codeholds the scan type (收件 collected, 发件 departed, 到件 arrived, 派件 out for delivery, 驿站代收 left at a pickup point, 客户签收 signed). - Time zone: scans are in China time (UTC+8);
timestampis converted from that. - Unknown numbers: STO answers an empty list, returned as
not_found.
Related Resources
- Regex & check digits: Tracking number formats & auto-detection
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