# Česká pošta (Czech Post) Tracking API & MCP

URL: https://docs.lastscanned.com/carriers/ceskaposta

Query live **Česká pošta** (`ceskaposta`) consignment status and scan history in a single synchronous `GET` request or MCP tool call. `lastscanned` auto-detects UPU S10 numbers ending `CZ` and returns a normalized `TrackingResult` JSON payload.

## Overview & Quick Facts

| Property | Value |
|---|---|
| **Carrier slug (`?carrier=`)** | `ceskaposta` |
| **Brand & service aliases** | Česká pošta, Ceska posta, Czech Post, Česká pošta s.p., postaonline.cz |
| **Category** | Czech national post |
| **Single-package REST endpoint** | `GET https://api.lastscanned.com/v1/track/{trackingNumber}` |
| **Batch REST endpoint** | `GET https://api.lastscanned.com/v1/track?numbers=RR603819422CZ,...` |
| **MCP server (`https://mcp.lastscanned.com`)** | `track_package`, `track_packages`, `list_carriers` (`claude mcp add --transport http lastscanned https://mcp.lastscanned.com`) |
| **Authentication & pricing** | `Authorization: Bearer lsk_live_...` · **1 free keyless lookup/day per IP** · **Free tier** (5 unique numbers/day, $0) · **Pro** ($4.99/mo for 1,000 unique numbers, unlimited re-polls, $0.015/extra) · **HTTP 402 Stripe MPP** ($0.50 for 25-number `lsk_pack_` key or $0.02/number in USDC on Tempo) |

## Why developers use `lastscanned` for Česká pošta [#why-developers-use-lastscanned-for-česká-pošta]

- **No WAF to fight**: `ceskaposta.cz` rejects most scripted requests. `lastscanned` calls the ParcelHistory service that the `postaonline.cz` tracking page uses, which answers a plain request.
- **English wording**: scan texts are requested in English and mapped to the 7 standard statuses (`being delivered` to `out_for_delivery`, `deposited - addressee not at home` to `exception`, `returned to the sender` to `returned`).
- **Scan ids kept**: `events[].code` holds Česká pošta's state id (`21` taken into transport, `51` prepared for delivery, `53` being delivered, `82` deposited, `9V` returned).

## Tracking Number Formats & Auto-Detection (`matches` vs `?carrier=ceskaposta`)

| Pass | Rule / Regex | Check Digit | Examples |
|---|---|---|---|
| **Pass 1 (`matches`)** | `/^[A-Z]{2}\d{9}CZ$/` with a valid UPU S10 check digit | S10 mod 11 | `RR603819422CZ` |
| **Pass 2 (`mayMatch`)** | *None* | — | — |
| **Explicit (`?carrier=ceskaposta`)** | Other numbers Česká pošta tracks | — | — |

### When is `?carrier=ceskaposta` optional vs required?

- **Optional (auto-detected)**: S10 numbers ending `CZ` with a valid check digit.
- **Required**: any other Česká pošta number. Domestic parcel numbers of the `DR…` kind are answered with a "not shown" notice by this service and come back as `not_found`.

## Synchronous `GET` Request & Normalized JSON Response

### `curl`

```bash
curl -s "https://api.lastscanned.com/v1/track/RR603819422CZ" \
  -H "Authorization: Bearer $LASTSCANNED_API_KEY"
```

### JavaScript / TypeScript (`fetch`)

```ts
const res = await fetch("https://api.lastscanned.com/v1/track/RR603819422CZ", {
  headers: { Authorization: `Bearer ${process.env.LASTSCANNED_API_KEY}` },
});
const pkg = await res.json();
console.log(pkg.status, pkg.events[0]);
```

### MCP `track_package` tool call

```json
{
  "tool": "track_package",
  "arguments": {
    "tracking_number": "RR603819422CZ"
  }
}
```

### Normalized `TrackingResult` JSON response

```json
{
  "carrier": "ceskaposta",
  "trackingNumber": "RR603819422CZ",
  "status": "out_for_delivery",
  "statusDescription": "The consignment is being delivered.",
  "service": null,
  "deliveredAt": null,
  "deliveredAtLocal": null,
  "signedBy": null,
  "destination": null,
  "events": [
    {
      "timestamp": null,
      "localTime": "2026-10-26",
      "status": "out_for_delivery",
      "description": "The consignment is being delivered.",
      "location": "Praha 011, 11000",
      "code": "53"
    },
    {
      "timestamp": null,
      "localTime": "2026-10-26",
      "status": "in_transit",
      "description": "The consignment is being prepared for delivery.",
      "location": "Praha 011, 11000",
      "code": "51"
    },
    {
      "timestamp": null,
      "localTime": "2026-10-24",
      "status": "in_transit",
      "description": "The consignment was sent for transportation.",
      "location": "Brno 2, 60200",
      "code": "21"
    },
    {
      "timestamp": null,
      "localTime": "2026-10-23",
      "status": "label_created",
      "description": "Receipt of data about consignment.",
      "location": null,
      "code": "-M"
    }
  ]
}
```

> **Dates only**: Česká pošta gives each scan a date without a time of day, so `timestamp` is always `null` and `localTime` is a date (`"2026-10-26"`). Scans on the same day keep Česká pošta's order.
> **No record**: a number with no record returns `not_found`.

## Related Resources

- **Live browser lookup tool**: [Track a Česká pošta package live on lastscanned.com/lookup/ceskaposta](https://lastscanned.com/lookup/ceskaposta)
- **Carrier hub**: [All supported carriers](/carriers)
- **Regex & check digits**: [Tracking number formats & auto-detection](/formats)
- **AI support workflows**: [WISMO AI agents & synchronous tracking](/wismo)