---
title: "Get instance-SKU availability"
method: GET
path: "/preview/v2/instance_skus/{id}/availability"
tags: ["Instance SKUs"]
---

# Get instance-SKU availability

`GET /preview/v2/instance_skus/{id}/availability`

> ⚠️ This endpoint is in [public preview](/preview/roadmap).

The purchasable-capacity schedule of one instance SKU.

## Path parameters

- `id` union, required — Accepts the canonical prefix below; additional legacy prefixes are aliased for read compatibility. Writes always emit the canonical form.
  - string
  - string — Legacy alias prefix; accepted on read, never emitted on write.

## Response `200`

The SKU's availability.

- InstanceSkuAvailability — One instance SKU's purchasable-capacity schedule.
  - `object` 'instance_sku_availability', required
  - `instance_sku` InstanceSkuSummary, required — A summary of an instance SKU - its `id` and human-recognizable `alias` - embedded on resources that reference a SKU.
    - `object` 'instance_sku', required
    - `id` union, required — Accepts the canonical prefix below; additional legacy prefixes are aliased for read compatibility. Writes always emit the canonical form.
      - string
      - string — Legacy alias prefix; accepted on read, never emitted on write.
    - `alias` string, required
  - `schedule` ScheduleEntry[], required — Node count over time, as a list of `[start_at, end_at)` time ranges. Example: 5 nodes from t=0 to t=3600 is `[{"start_at": 0, "end_at": 3600, "node_count": 5}]`. `start_at` and `end_at` must be 60-second aligned, `node_count` must be non-negative. On non-final entries, `end_at` may be omitted (inferred from the next entry's `start_at`); gaps fill with `node_count: 0`.
    - `start_at` integer, required — Unix timestamp.
    - `end_at` integer — Unix timestamp.
    - `node_count` integer, required

## Other responses

- `401` — Unauthorized.
- `404` — Instance SKU not found.
- `500` — Internal server error.
- `503` — Availability temporarily unavailable.

---

[API](https://skmtc.dev/sfcompute/apis/sfc-api.md) · [All operations](https://skmtc.dev/sfcompute/apis/sfc-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/sfcompute/sfc-api/revisions/f3ff1539c0d9/schema)