# Correos de El Salvador Tracking API & MCP

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

Query live **Correos de El Salvador** (`correossalvador`) package status and scan history in a single synchronous `GET` request or MCP tool call. El Salvador (inbound and outbound S10 mail).

## Overview & Quick Facts

| Property | Value |
|---|---|
| **Carrier slug (`?carrier=`)** | `correossalvador` |
| **Brand aliases** | Correos de El Salvador, El Salvador Post, Correos SV |
| **Category** | Regional (El Salvador (inbound and outbound S10 mail)) |
| **Single-package REST endpoint** | `GET https://api.lastscanned.com/v1/track/{trackingNumber}` |
| **Batch REST endpoint** | `GET https://api.lastscanned.com/v1/track?numbers=RB123456785SV,RB123456785SV` |
| **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`)** | S10 with check digit (`s10From("SV")`) | S10 check digit | `RB123456785SV` |
| **Pass 2 (`mayMatch`)** | none | none | none |

`RB123456785SV`-shaped numbers are claimed by Correos de El Salvador, so `?carrier=correossalvador` is optional.

## Synchronous `GET` Request & Normalized JSON Response

```bash
curl -s "https://api.lastscanned.com/v1/track/RB968554210SG?carrier=correossalvador" \
  -H "Authorization: Bearer $LASTSCANNED_API_KEY"
```

```json
{
  "carrier": "correossalvador",
  "trackingNumber": "RB968554210SG",
  "status": "delivered",
  "statusDescription": "Entregar envío (entrada)",
  "service": "Cartas (Lc/Ao)",
  "deliveredAt": "2026-02-01T23:59:00Z",
  "deliveredAtLocal": "2026-02-01T17:59:00",
  "signedBy": null,
  "destination": null,
  "events": [
    {
      "timestamp": "2026-02-01T23:59:00Z",
      "localTime": "2026-02-01T17:59:00",
      "status": "delivered",
      "description": "Entregar envío (entrada)",
      "location": "San Salvador",
      "code": null
    },
    {
      "timestamp": "2026-01-30T20:05:22Z",
      "localTime": "2026-01-30T14:05:22",
      "status": "in_transit",
      "description": "Transferir envío al agente de entrega (entrada)",
      "location": "Depto Distribucion Correspondencia Amss (Dcamss)",
      "code": null
    },
    {
      "timestamp": "2026-01-06T01:58:17Z",
      "localTime": "2026-01-05T19:58:17",
      "status": "in_transit",
      "description": "Recibir envío en oficina de cambio (entrada)",
      "location": "San Salvador 5 Aereo",
      "code": null
    }
  ]
}
```

## Notes

- The service accepts S10 codes from any post (an item from Singapore, say), not only `SV` ones. Auto-detection claims `SV` codes; for others pass `?carrier=correossalvador`.
- Times are El Salvador time (UTC-6, no DST). Endpoint runs on port 8000.

## Related Resources

- **Regex & check digits**: [Tracking number formats & auto-detection](/formats)