---
title: "List models used by routing rules"
method: GET
path: "/v2/routing-rules/used-models"
tags: ["Routing Rules"]
---

# List models used by routing rules

`GET /v2/routing-rules/used-models`

Returns the distinct model references used by routing rules in the requested scope.

## Query parameters

- `project_id` string

## Response `200`

OK

- ListRoutingRuleUsedModelsResponse
  - `object` string, required
  - `models` string[], required

## Changes

> 375 revisions in range; 158 not diffed.

- **2026-08-24** `addad33219df` — 1 info
  - added the new optional `query` request parameter `project_id`
- **2026-08-21** `1586760a252f` — 1 breaking, 1 warning
  - the response property `models` became nullable for the status `200`
  - deleted the `query` request parameter `project_id`
- **2026-08-21** `4fdc24e562eb` — 1 info
  - added the new optional `query` request parameter `project_id`
- **2026-08-20** `be3fe58ce389` — 1 breaking, 1 warning
  - the response property `models` became nullable for the status `200`
  - deleted the `query` request parameter `project_id`
- **2026-08-17** `f54fa34db0f4` — 1 info
  - added the new optional `query` request parameter `project_id`

[Full history](https://skmtc.dev/orq-ai/apis/orq-ai-api/changes/v2/routing-rules/used-models/get.md)

---

[API](https://skmtc.dev/orq-ai/apis/orq-ai-api.md) · [All operations](https://skmtc.dev/orq-ai/apis/orq-ai-api/llms.txt) · [OpenAPI document](https://skmtc.dev/orq-ai/apis/orq-ai-api/revisions/d5eb707e3b6e?raw)