# Update generation

`PATCH https://api.endless.app/generations/{generation_id}`

Source: https://endless.app/docs/api/generations/update

Updates a generation and returns the updated row. Scoped to the generation named by `generation_id`. Send a sparse body — only the fields that changed. Each field is authorized on its own, so resending an unchanged one also demands its permission.

## Authentication

- `bearerAuth`: HTTP bearer (JWT)

## Parameters

| Name | In | Type | Required | Description |
| --- | --- | --- | --- | --- |
| `generation_id` | path | string (uuid) | yes |  |
| `Endless-Api-Version` | header | string | no | Pin the caller to an API major (`1`). Omit to accept the current version. A major this deployment cannot serve is refused with 400 `unsupported_api_version`. |

## Request body

Content type: `application/json` — object

- `status` ("pending" | "running" | "completed" | "failed")
- `error` (string | null)

## Responses

### 200 OK

Content type: `application/json` — object

- `generation` (object, required)
  - `id` (string (uuid), required)
  - `organization_id` (string, required)
  - `created_by_id` (string, required)
  - `media_model_variant_id` (string (uuid) | null, required)
  - `media_model_id` (string (uuid) | null, required)
  - `quick_action_id` (string (uuid) | null, required)
  - `status` ("pending" | "running" | "completed" | "failed", required)
  - `parameters` (string | number | boolean | null | object | array<any | null> | null, required)
  - `quoted_per_output` (string | null, required)
  - `error` (string | null, required)
  - `error_code` (string | null, required)
  - `canvas_id` (string (uuid) | null, required)
  - `message_id` (string (uuid) | null, required)
  - `tool_call_id` (string | null, required)
  - `source_generation_id` (string (uuid) | null, required)
  - `fal_request_id` (string (uuid) | null, required)
  - `replicate_request_id` (string | null, required)
  - `replicate_prediction_id` (string | null, required)
  - `started_at` (string (date-time) | null, required)
  - `completed_at` (string (date-time) | null, required)
  - `deleted_at` (string (date-time) | null, required)
  - `deleted_by_id` (string | null, required)
  - `reconcile_attempts` (integer, required)
  - `created_at` (string (date-time), required)
  - `updated_at` (string (date-time), required)

### Errors

- `400` (Error): The request is malformed, or failed input validation. `message` names the field and the rule it broke; `data.issues` carries them individually.
- `401` (Error): No bearer token, or a token that failed verification.
- `402` (Error): The workspace has no credits left, or the caller is over a spending limit.
- `403` (Error): Authenticated, but the caller's role in this workspace does not carry the permission this operation needs.
- `404` (Error): No resource with that id, or the caller cannot read it. The two are deliberately one answer, so an id cannot be probed for existence.
- `409` (Error): The request is well-formed, but the resource's current state forbids it — a taken name, a last admin, a limit already reached.
- `429` (Error): The caller has spent its rate-limit window. `Retry-After` says when to come back.
- `500` (Error): The request failed on our side. Safe to retry an idempotent operation with backoff.