# Retrieve delta by blueprint ID

**GET** `/v1/private/agent-configs/blueprints/{blueprint_id}/deltas`

Retrieves only the changes (delta) introduced in a specific blueprint

Base URL: `https://www.comet.com/opik/api`

Tags: `Agent Configs`

## Authorization

This operation requires no authorization.

## Path parameters

| Name | Type | Required | Description |
| --- | --- | --- | --- |
| `blueprint_id` | `string` (uuid) | Yes | — |

## Responses

| Status | Description | Media type |
| --- | --- | --- |
| `200` | Delta retrieved | `application/json` |
| `401` | Unauthorized | `application/json` |
| `404` | Not Found | `application/json` |

### Example response: 200 — Delta retrieved

```json
{
  "created_at": "2026-06-09T00:00:00Z",
  "created_by": "string",
  "description": "string",
  "envs": [
    "string"
  ],
  "id": "00000000-0000-0000-0000-000000000000",
  "last_updated_at": "2026-06-09T00:00:00Z",
  "last_updated_by": "string",
  "name": "string",
  "type": "blueprint",
  "values": [
    {
      "description": "string",
      "key": "string",
      "type": "boolean",
      "value": "string"
    }
  ]
}
```

### Example response: 401 — Unauthorized

```json
{
  "code": 0,
  "details": "string",
  "message": "string"
}
```

### Example response: 404 — Not Found

```json
{
  "code": 0,
  "details": "string",
  "message": "string"
}
```

## Related pages

- [Activate a pairing session](./activatepairingsession.md)
- [Add blueprint to existing config](./updateagentconfig.md)
- [Add items to annotation queue](./additemstoannotationqueue.md)
- [Add span comment](./addspancomment.md)
- [Add span feedback score](./addspanfeedbackscore.md)
- [Add thread comment](./addthreadcomment.md)
- [Add trace comment](./addtracecomment.md)
- [Add trace feedback score](./addtracefeedbackscore.md)
- [Agent Configs](./tags/agent-configs.md)
- [Agent Insights](./tags/agent-insights.md)

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