---
title: "Cluster Counterfactual Rollup"
method: GET
path: "/api/counterfactual/cluster"
tags: ["Counterfactual"]
---

# Cluster Counterfactual Rollup

`GET /api/counterfactual/cluster`

## Request

- Base URL: `https://api.fiber.ac` (the document declares no server; this is the origin it was published from)
- URL: `https://api.fiber.ac/api/counterfactual/cluster`
- Auth: none declared

Top N ports ranked by avoidable cost. Sums across ports to estimate the total GPU-hours and USD the cluster could have avoided had those ports been healthy.

## Query parameters

- `hours` integer
- `top_n` integer
- `checkpoint_interval_min` number
- `recovery_overhead_min` number

## Response `200`

Per-port counterfactual savings sorted by $ avoidable

- unknown

## Other responses

- `422`: Validation Error

---

[API](https://skmtc.dev/fiber-ac/apis/fiber-api.md) · [All operations](https://skmtc.dev/fiber-ac/apis/fiber-api/llms.txt) · [OpenAPI document](https://skmtc.dev/fiber-ac/apis/fiber-api/revisions/58267250d793?raw)