---
title: "Get Models Reranker Usage"
method: POST
path: "/usage/models/reranker"
tags: ["Usage"]
---

# Get Models Reranker Usage

`POST /usage/models/reranker`

Get reranker usage analytics with model breakdown.

Note: Rerank events don't have collection_id, so collection filtering is not supported.
If collection_names are provided in the request, they will be ignored.

## Request body

- UsageRequest
  - `start_time` integer, required — Start time for the usage query (inclusive) - Unix timestamp (seconds since epoch)
  - `end_time` integer, required — End time for the usage query (inclusive) - Unix timestamp (seconds since epoch)
  - `aggregation_window` 'minutely' | 'hourly' | 'daily', required
  - `collection_names` string[], nullable — Optional list of collection names to filter by. If None, returns data for all collections.

## Response `200`

Successful Response

- RerankUsageResponse[]
  - `window_start` integer, required
  - `organization_id` string, uuid, required
  - `reranker_model` string, required
  - `explicit_call` boolean, required
  - `event_count` integer, required
  - `total_request_bytes` integer, required
  - `total_reranker_tokens` integer, required
  - `total_documents_reranked` integer, required
  - `total_time_taken_ms` number, required
  - `total_reranking_time_ms` number, required

## Other responses

- `400` — Bad Request
- `404` — Not Found
- `422` — Validation Error

## Changes

- **2026-01-21** `b5badb138367` — 1 info
  - endpoint added

[Change history](https://skmtc.dev/zeroentropy-ai/apis/zeroentropy-api/changes/usage/models/reranker/post.md)

---

[API](https://skmtc.dev/zeroentropy-ai/apis/zeroentropy-api.md) · [All operations](https://skmtc.dev/zeroentropy-ai/apis/zeroentropy-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/zeroentropy-ai/zeroentropy-api/revisions/5ff1b24060b9/schema)