> ## Documentation Index
> Fetch the complete documentation index at: https://docs.allium.so/llms.txt
> Use this file to discover all available pages before exploring further.

# Update config

> Updates an existing pipeline configuration.

```
PUT /api/v1/beam/{config_id}
```

Updates an existing pipeline configuration. After updating, [deploy](/beam/api-reference/deployment/deploy) again to apply changes.

**Path parameters:**

| Parameter   | Description               |
| :---------- | :------------------------ |
| `config_id` | Pipeline configuration ID |

**Request body:** [`BeamConfig`](/beam/api-reference/configuration#beamconfig)

The full config object including `pipeline_config`. The `owner_org_team_user_id` is set from the authenticated API key.

```bash theme={null}
curl -X PUT https://api.allium.so/api/v1/beam/${CONFIG_ID} \
  -H "X-API-Key: ${ALLIUM_API_KEY}" \
  -H "Content-Type: application/json" \
  -d '{
    "id": "'${CONFIG_ID}'",
    "name": "USDC Transfer Monitor (updated)",
    "description": "Updated description",
    "pipeline_config": {
      "source": {
        "type": "pubsub",
        "chain": "base",
        "entity": "erc20_token_transfer",
        "is_zerolag": false
      },
      "transforms": [
        {
          "type": "redis_set_filter",
          "uid": "tf-001",
          "filter_expr": "root = this.token_address"
        }
      ],
      "sinks": [
        {
          "type": "kafka",
          "uid": "sk-001",
          "name": "usdc-transfers"
        }
      ]
    }
  }'
```

**Response:** [`BeamConfig`](/beam/api-reference/configuration#beamconfig)

<Warning>
  Remember to [redeploy](/beam/api-reference/deployment/deploy) after updating to apply changes. Redeployment is idempotent with zero downtime.
</Warning>