---
title: "List extension versions"
method: GET
path: "/api/extensions/{id}/versions"
tags: ["Extensions"]
---

# List extension versions

`GET /api/extensions/{id}/versions`

## Path parameters

- `id` string, required

## Response `200`

Extension versions

- object
  - `versions` ExtensionVersion[], required
    - `id` string, required
    - `extensionId` string, required
    - `version` integer, required
    - `manifestJson` string, required
    - `filesJson` string, required
    - `contentHash` string, required
    - `changedByAgentId` string, nullable, required
    - `changedAt` string, required
    - `changeReason` string, nullable, required

## Other responses

- `404` — Extension not found

## Changes

- **2026-09-16** `3f6e56391f84` — 1 info
  - endpoint added

[Change history](https://skmtc.dev/desplega-ai/apis/agent-swarm-api/changes/api/extensions/:id/versions/get.md)

---

[API](https://skmtc.dev/desplega-ai/apis/agent-swarm-api.md) · [All operations](https://skmtc.dev/desplega-ai/apis/agent-swarm-api/llms.txt) · [OpenAPI document](https://skmtc.dev/desplega-ai/apis/agent-swarm-api/revisions/01e2386c97da?raw)