---
title: "Changes to List models, per-role runtime defaults, and the system default fallback chain"
method: GET
path: "/v1/model-router/catalog"
---

# Changes to List models, per-role runtime defaults, and the system default fallback chain

`GET /v1/model-router/catalog`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 1 of 3 revisions.

- **2026-08-12** `5a5597ebb2d6`: 8 info

## Changes

- **2026-08-12** `5a5597ebb2d6`: 8 info
  - added the optional property `models/items/allowed_efforts` to the response with the `200` status
  - added the optional property `models/items/fastest_effort` to the response with the `200` status
  - added the optional property `models/items/supports_thinking_budget` to the response with the `200` status
  - added the optional property `retry_after` to the response with the `400` status
  - added the optional property `retry_after` to the response with the `401` status
  - added the optional property `retryable` to the response with the `400` status
  - added the optional property `retryable` to the response with the `401` status
  - added the required property `default_chain` to the response with the `200` status

---

[Operation](https://skmtc.dev/oneloop-hq/apis/feather-api/docs/v1/model-router/catalog/get.md) - [API](https://skmtc.dev/oneloop-hq/apis/feather-api.md) - [Page](https://skmtc.dev/oneloop-hq/apis/feather-api/changes/v1/model-router/catalog/get)