# Start build (/docs/api-reference/templates/start-build)

<!-- agent-signals: reading_time_min: 1 · est_tokens: 480 · updated: 2026-07-30 -->
Related: [Create template (v3)](/docs/api-reference/templates/create-template-v3.md), [List templates (v2)](/docs/api-reference/templates/list-templates-v2.md), [Create template (v2)](/docs/api-reference/templates/create-template-v2.md), [Get build upload link](/docs/api-reference/templates/get-build-upload-link.md), [List templates](/docs/api-reference/templates/list-templates.md), [Create template](/docs/api-reference/templates/create-template.md)

# Start build

`POST /templates/{templateID}/builds/{buildID}`

> Deprecated

Start the build

## OpenAPI

```json
{
  "security": [
    {
      "AccessTokenAuth": []
    }
  ],
  "parameters": [
    {
      "name": "templateID",
      "in": "path",
      "required": true,
      "schema": {
        "type": "string"
      }
    },
    {
      "name": "buildID",
      "in": "path",
      "required": true,
      "schema": {
        "type": "string"
      }
    }
  ],
  "responses": {
    "202": {
      "description": "The build has started",
      "content": {
        "application/json": {
          "schema": {
            "type": "object",
            "description": "Empty response"
          }
        }
      }
    },
    "401": {
      "description": "Authentication error",
      "content": {
        "application/json": {
          "schema": {
            "required": [
              "code",
              "message"
            ],
            "properties": {
              "code": {
                "type": "integer",
                "format": "int32",
                "description": "Error code"
              },
              "message": {
                "type": "string",
                "description": "Error"
              }
            },
            "type": "object"
          }
        }
      }
    },
    "500": {
      "description": "Server error",
      "content": {
        "application/json": {
          "schema": {
            "required": [
              "code",
              "message"
            ],
            "properties": {
              "code": {
                "type": "integer",
                "format": "int32",
                "description": "Error code"
              },
              "message": {
                "type": "string",
                "description": "Error"
              }
            },
            "type": "object"
          }
        }
      }
    }
  }
}
```