# List metros

> Active metros, with their slug, name, timezone and known aliases.

Source: https://api.tailend.dev/docs/api/list-metros

```http
GET https://api.tailend.dev/v1/metros
X-API-Key: $TAILEND_API_KEY
```

Active metros, with their slug, name, timezone and known aliases.

Authorization: send your key in the `X-API-Key` header. Available on every plan.

## Example request

```bash
curl -sS \
  -H "X-API-Key: $TAILEND_API_KEY" \
  "https://api.tailend.dev/v1/metros"
```

## Responses

### 200

Metros

```json
{
  "data": [
    {
      "slug": "philadelphia",
      "name": "Philadelphia Area",
      "timezone": "America/New_York"
    }
  ]
}
```

### 401

Missing, unknown or revoked X-API-Key.

```json
{
  "error": {
    "code": "unauthorized",
    "message": "missing X-API-Key header",
    "request_id": "req_90e63908273f6bff"
  }
}
```

### 403

Two different reasons share this status.

```json
{
  "error": {
    "code": "forbidden",
    "message": "key is not scoped to metro 'boston'",
    "details": {
      "metros": [
        "philadelphia"
      ]
    },
    "request_id": "req_9e7a750acef48ab2"
  }
}
```

### 405

The path exists; the method does not.

```json
{
  "error": {
    "code": "method_not_allowed",
    "message": "POST is not allowed on this path; this API is read-only",
    "details": {
      "allow": [
        "GET",
        "HEAD",
        "OPTIONS"
      ]
    },
    "request_id": "req_01J9Z3"
  }
}
```

### 429

A limit was reached.

```json
{
  "error": {
    "code": "rate_limited",
    "message": "3 requests per minute exceeded",
    "request_id": "req_06bfd3c2d5e8aa9f"
  }
}
```

### 500

A bug on our side.

```json
{
  "error": {
    "code": "internal",
    "message": "internal error",
    "request_id": "req_01J9Z3"
  }
}
```

### 501

This endpoint or feature is not available and will not become available without a configuration change — for ?address=, this means no geocoder is configured.

```json
{
  "error": {
    "code": "not_implemented",
    "message": "this endpoint is not enabled on this deployment; it is not a fault and retrying will not help",
    "request_id": "req_01J9Z3"
  }
}
```

### 503

A transient outage: a dependency could not be reached or did not answer in time.

```json
{
  "error": {
    "code": "unavailable",
    "message": "the service is temporarily unable to serve this request; retry after the interval in Retry-After",
    "request_id": "req_01J9Z3"
  }
}
```