---
title: Get a single passport
description: Read one passport by ID. ?lang resolves every field via the viewer-locale chain; ?format=full adds template labels, units, and access levels.
canonical: "https://www.tracepass.eu/docs/get-passport"
locale: en
source: "https://www.tracepass.eu/docs/get-passport"
---

# Get a single passport

> Read one passport by ID. ?lang resolves every field via the viewer-locale chain; ?format=full adds template labels, units, and access levels.

```http
GET /api/v1/passports/{id}
```

Read one passport by ID. Default response includes the full passport — translatable fields carry their `sourceLocale` and a per-locale `translations` map. Pass `?lang=<locale>` to have the server resolve every field through the public-viewer chain (viewer-locale translation → source-locale value → English → first-applied → universal source) and return one resolved value per field; the `translations` map is dropped from lang-resolved responses.

Pass `?format=full` to additionally include template-derived field labels, units, and access levels alongside each value — useful for building a custom viewer or audit report. The two query params combine: `?format=full&lang=de` returns the labels in DE plus values resolved to DE.

Alternate addressing: `GET /api/v1/passports/by-serial/{serial}` returns the same shape and accepts the same query params. There's also a `GET /api/v1/passports/{id}/qr` endpoint that returns a freshly-rendered SVG / PNG of the QR code — useful when you want our renderer instead of encoding `gs1.digitalLinkUri` yourself.

## Parameters

| Name | In | Type | Required | Description |
| --- | --- | --- | --- | --- |
| `Authorization` | header | string | yes | `Bearer <token>` — either a `tp_` API key (Developer → API Keys; simplest, for server-to-server) or an OAuth 2.0 access token (Developer → OAuth Apps; for user-authorized apps, scoped + revocable). The Authentication page has the full OAuth flow and scope list. |
| `id` | path | ObjectId | yes | Passport ID. |
| `format` | query | string | no | Set to `full` to include template field labels, units, and access levels. |
| `lang` | query | string (ISO 639-1) | no | Resolve field values to a single locale server-side. One of the 24 EU locales. |

## Examples

```bash
# Default response — full data, consumer resolves locales itself
curl -sS https://app.tracepass.eu/api/v1/passports/6650b2c3d4e5f6a7b8c9d0e1 \
  -H "Authorization: Bearer tp_REDACTED_xxxxxxxxxxxx"

# Single-locale response with template labels
curl -sS \
  "https://app.tracepass.eu/api/v1/passports/6650b2c3d4e5f6a7b8c9d0e1?format=full&lang=de" \
  -H "Authorization: Bearer tp_REDACTED_xxxxxxxxxxxx"
```

```typescript
const url = new URL(`https://app.tracepass.eu/api/v1/passports/${id}`);
url.searchParams.set("format", "full");
url.searchParams.set("lang", "de");

const res = await fetch(url, {
  headers: { Authorization: `Bearer ${process.env.TRACEPASS_API_KEY}` },
});
if (res.status === 404) return null;
const passport = await res.json();
```

```python
import os, requests
res = requests.get(
    f"https://app.tracepass.eu/api/v1/passports/{passport_id}",
    headers={"Authorization": f"Bearer {os.environ['TRACEPASS_API_KEY']}"},
    params={"format": "full", "lang": "de"},
)
res.raise_for_status()
passport = res.json()
```

## Responses

### 200 — Default

```json
{
  "_id": "6650b2c3d4e5f6a7b8c9d0e1",
  "gs1": {
    "gtin": "04012345000016",
    "serialNumber": "BP-48V-100-000001",
    "digitalLinkUri": "https://id.tracepass.eu/p/01/04012345000016/21/BP-48V-100-000001"
  },
  "status": "published",
  "completionPercentage": 87,
  "fields": {
    "batteryChemistry": {
      "value": "NMC",
      "source": "manual",
      "status": "approved",
      "accessLevel": "public",
      "sourceLocale": "en",
      "translations": {
        "de": { "value": "NMC", "source": "ai-haiku-4.5", "generatedAt": "2026-05-02T10:00:00.000Z" }
      }
    }
  }
}
```

### 200 — ?lang=de

```json
{
  "_id": "6650b2c3d4e5f6a7b8c9d0e1",
  "gs1": { "...": "..." },
  "status": "published",
  "fields": {
    "batteryChemistry": {
      "value": "NMC",
      "source": "manual",
      "sourceLocale": "en"
    }
  }
}
```

### 404 — Not found

```json
{ "error": "Passport not found" }
```

## Related

- [List passports](https://www.tracepass.eu/docs/list-passports.md)
- [Create a passport](https://www.tracepass.eu/docs/create-passport.md)