---
# @generated by sylphx-gen 0.1.0 from contracts@e145cc7cf1bc9605f2b27439e5e17ed76a1a2fd7e7021906a013f7565e4a0cd5. Do not edit.
title: "List meters"
description: "`billing.meters.list` (GET /v1/meters): Lists meters."
type: reference
product: platform
summary: "Lists meters."
updated: 2026-09-28
nav: false
---

> **This method is not served on the public API.** `api.sylphx.com` does not route this call: its backend is not deployed behind the public API, or does not implement the call. This page documents the contract. It is kept out of the sidebar and of search engines.

Lists meters. Anonymous-readable: the pricing page renders from it.

**Not available yet.** Sylphx Billing is declared in the registry but no backend serves it: every call answers `501` with the problem code `UNIMPLEMENTED`.

- **Path** `GET https://api.sylphx.com/v1/meters`
- **Scope** `billing:read`
- **Effect** `read` — nothing is written.
- **Collection** [meters](/docs/api/meters)
- **Query** `page_size`, `page_token`, `filter`, `order_by`
- **Pagination** the answer carries `meters` and, when there is more, `next_page_token`
- **Publishable key** callable

## Request

| Field | Type | What it is |
| --- | --- | --- |
| `page_size` | `int32` | At most this many; default 50, clamped to 1000. |
| `page_token` | `string` | `next_page_token` of the previous page. |
| `filter` | `string` | AIP-160 filter over labels and filterable fields. |
| `order_by` | `string` | AIP-132 ordering over filterable fields. |

## Response

| Field | Type | What it is |
| --- | --- | --- |
| `meters` | `Meter[]` | The page. |
| `next_page_token` | `string` | The token of the next page; empty on the last page. |

### Meter

| Field | Type | What it is |
| --- | --- | --- |
| `name` | `string` | `meters/{meter}`, where `{meter}` is the meter id `{service}.{quantity}`, for example `meters/hosting.vcpu_seconds`. |
| `uid` | `string` | `mtr_<cell><ulid>`. Output only. |
| `meta` | `ResourceMeta` | Resource metadata. Output only. |
| `service` | `string` | The service that emits the meter; the meter id's prefix. Output only. |
| `current_version` | `int32` | The version new usage is measured under. Output only. |
| `versions` | `MeterVersion[]` | Every version, oldest first. Output only. |

### ResourceMeta

| Field | Type | What it is |
| --- | --- | --- |
| `generation` | `int64` | Increases by one on every change to `spec`. Output only. |
| `etag` | `string` | Strong ETag (AIP-154): changes on any change to spec, status, or metadata. Send it back as `If-Match` or `etag` to make Update and Delete conditional; a mismatch fails with ABORTED / 409 `ETAG_MISMATCH`. Output only. |
| `create_time` | `timestamp` | When the Resource was created. Output only. |
| `update_time` | `timestamp` | When the Resource last changed. Output only. |
| `delete_time` | `timestamp` | Set while the Resource is being deleted. Output only. |
| `labels` | `map<string, string>` | Caller-writable, indexed labels (AIP-122 label rules). |
| `annotations` | `map<string, string>` | Caller-writable, unindexed annotations. |
| `display_name` | `string` | Caller-writable human-readable name. |
| `creator` | `string` | The principal that created the Resource. Output only. |

### MeterVersion

| Field | Type | What it is |
| --- | --- | --- |
| `version` | `int32` | The version number, from 1. Output only. |
| `unit` | `string` | The base unit, for example `s`, `B`, or `tokens`. Output only. |
| `aggregation` | `MeterAggregation` | How quantities combine over a period. Output only. One of `sum`, `max`, `last`, `unique_count`. |
| `dimensions` | `MeterDimension[]` | The dimensions a usage event may carry; at most 8. Output only. |
| `hard_spend` | `bool` | Spend is bounded by budget leases. Output only. |
| `value_scale` | `int64` | A quantity is an integer count of 1/value_scale base units; 1 for integral units. Output only. |
| `effective_time` | `timestamp` | When usage starts being measured under this version. Output only. |

### MeterDimension

| Field | Type | What it is |
| --- | --- | --- |
| `key` | `string` | The dimension key, for example `class`. Output only. |
| `values` | `string[]` | The allowed values; empty means a bounded free-form string. Output only. |
| `required` | `bool` | Every event must carry it. Output only. |

## Errors

- [`UNAUTHENTICATED`](/docs/api/errors/UNAUTHENTICATED) — No valid key or token was presented.
- [`PERMISSION_DENIED`](/docs/api/errors/PERMISSION_DENIED) — The key lacks the method's permission.
- [`INVALID_FIELD`](/docs/api/errors/INVALID_FIELD) — A field failed validation.
- [`PAGE_TOKEN_MISMATCH`](/docs/api/errors/PAGE_TOKEN_MISMATCH) — A page token was reused with different parameters.

Every error arrives in the body [Errors](/docs/platform/errors) describes.

## Examples

**cURL**

```curl
curl "https://api.sylphx.com/v1/meters" \
  -H "Authorization: Bearer $SYLPHX_API_KEY"
```

**TypeScript**

```ts
const response = await sylphx.billing.meters.list({})
```

**Rust**

```rust
let response = sx.billing().meters().list(Default::default()).await?;
```

**CLI**

```bash
sylphx billing meters list
```

**MCP**

```json
{ "method_id": "billing.meters.list", "args": {} }
```