---
updatedAt: 2026-06-03T14:46:37.000Z
agentTools:
  projectIndex: https://developers.fieldwire.com/llms.txt
---

# Create a new task check item

# OpenAPI definition

```json
{
  "openapi": "3.0.3",
  "info": {
    "title": "Fieldwire Regional API",
    "version": "v3"
  },
  "servers": [
    {
      "url": "https://client-api.{region}.fieldwire.com",
      "variables": {
        "region": {
          "default": "us",
          "enum": [
            "ca",
            "eu",
            "us"
          ]
        }
      }
    }
  ],
  "components": {
    "headers": {
      "current_user_id": {
        "description": "Current user's id",
        "schema": {
          "type": "integer"
        }
      }
    },
    "parameters": {
      "api_version": {
        "name": "Fieldwire-Version",
        "in": "header",
        "description": "Specifies the version of the API to talk to",
        "required": true,
        "schema": {
          "type": "string",
          "format": "date"
        }
      },
      "project_id": {
        "name": "project_id",
        "in": "path",
        "description": "ID of the project this entity belongs to",
        "required": true,
        "schema": {
          "type": "string",
          "format": "uuid"
        }
      }
    },
    "schemas": {
      "task_check_item": {
        "type": "object",
        "description": "Entity that denotes the check items in a `Task`",
        "required": [
          "id",
          "creator_user_id",
          "last_editor_user_id",
          "project_id",
          "task_id",
          "state",
          "name",
          "created_at",
          "device_created_at",
          "device_updated_at",
          "resolved_conflict",
          "updated_at"
        ],
        "nullable": false,
        "properties": {
          "id": {
            "type": "string",
            "format": "uuid",
            "nullable": false,
            "description": "ID of the entity"
          },
          "creator_user_id": {
            "type": "integer",
            "format": "int32",
            "nullable": false,
            "description": "ID of the user who created this entity"
          },
          "last_editor_user_id": {
            "type": "integer",
            "format": "int32",
            "nullable": false,
            "description": "ID of the user who most recently edited this entity"
          },
          "project_id": {
            "type": "string",
            "format": "uuid",
            "nullable": false,
            "description": "ID of the project this entity belongs to"
          },
          "task_id": {
            "type": "string",
            "format": "uuid",
            "nullable": false,
            "description": "ID of the task this check item belongs to"
          },
          "checked": {
            "type": "boolean",
            "nullable": true,
            "deprecated": true,
            "description": "Whether this item is in checked state (use `state` instead)"
          },
          "state": {
            "type": "string",
            "enum": [
              "empty",
              "yes",
              "no",
              "not_applicable"
            ],
            "nullable": false,
            "description": "The state of this check item"
          },
          "name": {
            "type": "string",
            "nullable": false,
            "description": "Name of the entity"
          },
          "created_at": {
            "type": "string",
            "format": "date-time",
            "nullable": false,
            "description": "Time when the server created the entity"
          },
          "deleted_at": {
            "type": "string",
            "format": "date-time",
            "nullable": true,
            "description": "Time the server deleted the entity"
          },
          "device_created_at": {
            "type": "string",
            "format": "date-time",
            "nullable": false,
            "description": "Time when the device created the entity"
          },
          "device_updated_at": {
            "type": "string",
            "format": "date-time",
            "nullable": false,
            "description": "Time when the device last updated the entity"
          },
          "resolved_conflict": {
            "type": "boolean",
            "nullable": false,
            "description": "Specifies if PUT/PATCH request was rejected - do not store this field!"
          },
          "updated_at": {
            "type": "string",
            "format": "date-time",
            "nullable": false,
            "description": "Time when the server last updated the entity"
          }
        },
        "additionalProperties": false
      },
      "task_check_item_create_in_task_input": {
        "type": "object",
        "required": [
          "creator_user_id",
          "last_editor_user_id",
          "name"
        ],
        "nullable": false,
        "properties": {
          "id": {
            "type": "string",
            "format": "uuid",
            "nullable": false,
            "description": "ID of the entity"
          },
          "creator_user_id": {
            "type": "integer",
            "format": "int32",
            "nullable": false,
            "description": "ID of the user who created this entity"
          },
          "last_editor_user_id": {
            "type": "integer",
            "format": "int32",
            "nullable": false,
            "description": "ID of the user who most recently edited this entity"
          },
          "checked": {
            "type": "boolean",
            "nullable": true,
            "deprecated": true,
            "description": "Whether this item is in checked state (use `state` instead)"
          },
          "state": {
            "type": "string",
            "enum": [
              "empty",
              "yes",
              "no",
              "not_applicable"
            ],
            "nullable": false,
            "description": "The state of this check item"
          },
          "name": {
            "type": "string",
            "nullable": false,
            "description": "Name of the entity"
          },
          "device_created_at": {
            "type": "string",
            "format": "date-time",
            "nullable": false,
            "description": "Time when the device created the entity"
          },
          "device_updated_at": {
            "type": "string",
            "format": "date-time",
            "nullable": false,
            "description": "Time when the device last updated the entity"
          }
        },
        "description": "Schema for creating task check items",
        "additionalProperties": false
      }
    },
    "securitySchemes": {
      "jwt": {
        "type": "http",
        "scheme": "bearer",
        "bearerFormat": "JWT",
        "description": "Access token (JWT) generated using the acquired refresh token (API token). Our [authentication](https://developers.fieldwire.com/docs/authentication) guide covers the steps to generate a valid token"
      }
    }
  },
  "paths": {
    "/api/v3/projects/{project_id}/tasks/{task_id}/task_check_items": {
      "post": {
        "summary": "Create a new task check item",
        "operationId": "create_task_check_item_in_task",
        "tags": [
          "task check items"
        ],
        "security": [
          {
            "jwt": []
          }
        ],
        "parameters": [
          {
            "$ref": "#/components/parameters/project_id"
          },
          {
            "$ref": "#/components/parameters/api_version"
          },
          {
            "name": "task_id",
            "description": "ID of the task to create check items in",
            "in": "path",
            "required": true,
            "schema": {
              "type": "string",
              "format": "uuid"
            }
          }
        ],
        "responses": {
          "201": {
            "description": "Successful response",
            "headers": {
              "X-Current-User-Id": {
                "$ref": "#/components/headers/current_user_id"
              }
            },
            "content": {
              "application/json": {
                "example": {
                  "id": "0a2abd89-8bb8-4ae0-8e64-51ff33a727d0",
                  "creator_user_id": 2455,
                  "last_editor_user_id": 2455,
                  "project_id": "ef369475-3137-459d-a14f-abfcedb8700d",
                  "resolved_conflict": false,
                  "created_at": "2026-10-02T14:53:41.617Z",
                  "updated_at": "2026-10-02T14:53:41.617Z",
                  "device_created_at": "2026-10-02T14:53:41.617Z",
                  "device_updated_at": "2026-10-02T14:53:41.617Z",
                  "deleted_at": null,
                  "state": "empty",
                  "task_id": "cb1ba9b6-180c-48b7-9cec-3f6cb98e13a2",
                  "name": "sample item",
                  "checked": null
                },
                "schema": {
                  "$ref": "#/components/schemas/task_check_item"
                }
              }
            }
          }
        },
        "requestBody": {
          "content": {
            "application/json": {
              "schema": {
                "$ref": "#/components/schemas/task_check_item_create_in_task_input"
              }
            }
          },
          "required": true
        }
      }
    }
  }
}
```