---
title: "create service_sizing_policy"
method: POST
path: "/services/{service_id}/service_sizing_policies"
tags: ["ServiceSizingPolicies"]
---

# create service_sizing_policy

`POST /services/{service_id}/service_sizing_policies`

## Request

- Base URL: `https://api.aptible.com`
- URL: `https://api.aptible.com/services/{service_id}/service_sizing_policies`
- Auth: API key in header `Authorization`

Creates a new service sizing policy for the specified service.

## Path parameters

- `service_id` integer, required

## Query parameters

- `no_embed` boolean

## Headers

- `Prefer` 'no_sensitive_extras=true'

## Request body

- UpdateServiceSizingPolicyRequest
  - `scaling_enabled` boolean
  - `metric_lookback_seconds` integer
  - `percentile` number
  - `post_scale_up_cooldown_seconds` integer
  - `post_scale_down_cooldown_seconds` integer
  - `post_release_cooldown_seconds` integer
  - `mem_cpu_ratio_r_threshold` number
  - `mem_cpu_ratio_c_threshold` number
  - `mem_scale_up_threshold` number
  - `mem_scale_down_threshold` number
  - `minimum_memory` integer
  - `maximum_memory` integer
  - `autoscaling` string
  - `min_cpu_threshold` number
  - `max_cpu_threshold` number
  - `min_containers` integer
  - `max_containers` integer
  - `scale_up_step` integer
  - `scale_down_step` integer
  - `use_horizontal_scale` boolean

## Response `201`

successful

## Other responses

- `default`: Error response. Often a 4xx or 5xx status code

## Changes

- **2026-07-24** `1dc1e5b8c6eb`: 7 breaking, 3 info
  - the `max_cpu_threshold` request property type changed from `float` to `number`
  - the `mem_cpu_ratio_c_threshold` request property type changed from `float` to `number`
  - the `mem_cpu_ratio_r_threshold` request property type changed from `float` to `number`
  - the `mem_scale_down_threshold` request property type changed from `float` to `number`
  - …6 more
- **2025-06-17** `27e35c041e47`: 1 info
  - added the new optional request property `use_horizontal_scale`
- **2024-11-14** `df7ad36b0b68`: 1 info
  - endpoint added

[Operation history](https://skmtc.dev/aptible/apis/aptible-api-v1/changes/services/:service_id/service_sizing_policies/post.md)

---

[API](https://skmtc.dev/aptible/apis/aptible-api-v1.md) - [All operations](https://skmtc.dev/aptible/apis/aptible-api-v1/llms.txt) - [OpenAPI document](https://skmtc.dev/aptible/apis/aptible-api-v1/revisions/a21f6b1bc6fe?raw)