Carriers

CTT (Correios de Portugal) Tracking API & MCP

Query live CTT (ctt) object status and scan history in a single synchronous GET request or MCP tool call. lastscanned auto-detects UPU S10 numbers ending PT and returns a normalized TrackingResult JSON payload, without a CTT account.

Overview & Quick Facts

PropertyValue
Carrier slug (?carrier=)ctt
Brand & service aliasesCTT, CTT Expresso, Correios de Portugal, CTT Portugal
CategoryPortuguese national post
Single-package REST endpointGET https://api.lastscanned.com/v1/track/{trackingNumber}
Batch REST endpointGET https://api.lastscanned.com/v1/track?numbers=RR510293863PT,...
MCP server (https://mcp.lastscanned.com)track_package, track_packages, list_carriers (claude mcp add --transport http lastscanned https://mcp.lastscanned.com)
Authentication & pricingAuthorization: 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 CTT

  • No CTT account: the public "Seguir objeto" page signs in an anonymous session and calls CTT's screen service. lastscanned does the same from a single fetch()-style request.
  • UTC times from CTT: CTT's scan times are UTC (...Z), so every timestamp is exact. localTime shows the same clock reading.
  • Delivery signer and destination: when CTT names the person who took delivery, it is returned in signedBy; the recipient town and country fill destination.
  • Scan codes kept: events[].code holds CTT's event code (EMO information received, EMA accepted, EMZ out for delivery, EMH not delivered, EMI delivered).

Tracking Number Formats & Auto-Detection (matches vs ?carrier=ctt)

PassRule / RegexCheck DigitExamples
Pass 1 (matches)/^[A-Z]{2}\d{9}PT$/ with a valid UPU S10 check digitS10 mod 11RR510293863PT
Pass 2 (mayMatch)None——
Explicit (?carrier=ctt)Other CTT object codes——

When is ?carrier=ctt optional vs required?

  • Optional (auto-detected): S10 numbers ending PT with a valid check digit.
  • Required: any other CTT object code.

Synchronous GET Request & Normalized JSON Response

curl

curl -s "https://api.lastscanned.com/v1/track/RR510293863PT" \
  -H "Authorization: Bearer $LASTSCANNED_API_KEY"

JavaScript / TypeScript (fetch)

const res = await fetch("https://api.lastscanned.com/v1/track/RR510293863PT", {
  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

{
  "tool": "track_package",
  "arguments": {
    "tracking_number": "RR510293863PT"
  }
}

Normalized TrackingResult JSON response

{
  "carrier": "ctt",
  "trackingNumber": "RR510293863PT",
  "status": "delivered",
  "statusDescription": "O envio foi entregue. O processo de envio terminou.",
  "service": null,
  "deliveredAt": "2026-10-22T10:35:07Z",
  "deliveredAtLocal": "2026-10-22T10:35:07",
  "signedBy": null,
  "destination": {
    "city": "Vila Nova De Gaia",
    "state": null,
    "country": "PT"
  },
  "events": [
    {
      "timestamp": "2026-10-22T10:35:07Z",
      "localTime": "2026-10-22T10:35:07",
      "status": "delivered",
      "description": "O envio foi entregue. O processo de envio terminou.",
      "location": "Centro operacional 4400 Vila Nova de Gaia",
      "code": "EMI"
    },
    {
      "timestamp": "2026-10-22T08:55:44Z",
      "localTime": "2026-10-22T08:55:44",
      "status": "out_for_delivery",
      "description": "O envio saiu para entrega. Será entregue durante o dia.",
      "location": "Centro operacional 4400 Vila Nova de Gaia",
      "code": "EMZ"
    },
    {
      "timestamp": "2026-10-21T17:31:11Z",
      "localTime": "2026-10-21T17:31:11",
      "status": "in_transit",
      "description": "O envio foi aceite. O processo de envio foi iniciado.",
      "location": "Loja CTT Lisboa",
      "code": "EMA"
    },
    {
      "timestamp": "2026-10-21T17:31:08Z",
      "localTime": "2026-10-21T17:31:08",
      "status": "label_created",
      "description": "A informação sobre o envio foi recebida.",
      "location": null,
      "code": "EMO"
    }
  ]
}

Language: CTT's scan texts come back in Portuguese. No record: a number CTT has no record of returns not_found.

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