---
title: "Activate an extension version"
method: POST
path: "/api/extensions/{id}/activate-version"
tags: ["Extensions"]
---

# Activate an extension version

`POST /api/extensions/{id}/activate-version`

Activates a stored version. Available to leads, operators, and dashboard users.

## Path parameters

- `id` string, required

## Request body

- object
  - `version` integer, required

## Response `200`

Activated extension

- object
  - `extension` Extension, required
    - `id` string, required
    - `name` string, required
    - `description` string, required
    - `runtime` 'api' | 'worker', required
    - `manifestJson` string, required
    - `contentHash` string, required
    - `version` integer, required
    - `activeVersion` integer, required
    - `enabled` boolean, required
    - `priority` integer, required
    - `configJson` string, required
    - `status` 'disabled' | 'enabled' | 'error' | 'auto-disabled', required
    - `consecutiveFailures` integer, required
    - `lastError` string, nullable, required
    - `agentId` string, nullable, required
    - `createdByAgentId` string, nullable, required
    - `createdAt` string, required
    - `updatedAt` string, required

## Other responses

- `400` — Extension load or config validation failed
- `403` — Permission denied
- `404` — Extension or version 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/activate-version/post.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)