FACTORY I/O Tag Values by Name API

Operations for reading and writing tag values by name

Documentation GitHub OpenAPI

Specifications

https://raw.githubusercontent.com/api-evangelist/factory-i-o/refs/heads/main/openapi/factory-i-o-tag-values-by-name-api-openapi.yml

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OpenAPI Specification

openapi: 3.0.3
info:
  title: FACTORY I/O Web Tag Values Tag Values by Name API
  description: 'The web server in Factory I/O exposes a REST API for reading and writing simulation tag values from external clients. The web server uses conventional HTTP response codes to indicate success or failure: 2xx for success, 4xx for client errors, and 5xx for errors in Factory I/O. By default the server listens on port 7410. Requires the Ultimate Edition with the web server activated via the app.web_server = True console command.'
  version: '1.0'
  contact:
    url: https://factoryio.com
  license:
    name: Commercial
    url: https://factoryio.com
servers:
- url: http://localhost:7410
  description: Local Factory I/O instance (default port)
tags:
- name: Tag Values by Name
  description: Operations for reading and writing tag values by name
paths:
  /api/tag/values/by-name:
    get:
      summary: Get tag values by name
      description: Get the values of tags in the scene identified by name. A name might return more than one tag as tag names are not unique in Factory I/O. When the request body is not set, returns the values of all tags.
      operationId: getTagValuesByName
      tags:
      - Tag Values by Name
      requestBody:
        description: Array of tag names. When omitted, returns all tag values.
        required: false
        content:
          application/json:
            schema:
              type: array
              items:
                type: string
            example:
            - At left entry
            - Left conveyor
            - Left count
      responses:
        '200':
          description: Array of tag value results (may include per-item errors)
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/TagValueByNameResult'
              example:
              - name: At left entry
                value: false
              - name: Left conveyor
                value: true
              - name: Name of non-existing tag
                code: 404
                error: Tag named 'Name of non-existing tag' not found.
        4XX:
          description: Client error
        5XX:
          description: Factory I/O server error
    put:
      summary: Set tag values by name
      description: Set the value of tags in the scene using the name to identify tags.
      operationId: setTagValuesByName
      tags:
      - Tag Values by Name
      requestBody:
        description: Array of tag value objects with name and value.
        required: true
        content:
          application/json:
            schema:
              type: array
              items:
                $ref: '#/components/schemas/TagValueByNameInput'
            example:
            - name: Front conveyor
              value: true
            - name: Entry conveyor (V)
              value: 3.141
      responses:
        '200':
          description: Array of per-item results (errors only for failed items)
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/TagValueByNameResult'
        4XX:
          description: Client error
        5XX:
          description: Factory I/O server error
  /api/tag/values-force/by-name:
    put:
      summary: Set forced tag values by name
      description: Set the forced value of tags in the scene using the name to identify tags.
      operationId: setTagValuesForceByName
      tags:
      - Tag Values by Name
      requestBody:
        description: Array of tag value objects with name and value.
        required: true
        content:
          application/json:
            schema:
              type: array
              items:
                $ref: '#/components/schemas/TagValueByNameInput'
      responses:
        '200':
          description: Array of per-item results (errors only for failed items)
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/TagValueByNameResult'
        4XX:
          description: Client error
        5XX:
          description: Factory I/O server error
  /api/tag/values-release/by-name:
    put:
      summary: Release forced tag values by name
      description: Release forced value of tags in the scene using the name to identify tags.
      operationId: setTagValuesReleaseByName
      tags:
      - Tag Values by Name
      requestBody:
        description: Array of tag names to release.
        required: true
        content:
          application/json:
            schema:
              type: array
              items:
                type: string
            example:
            - Front conveyor
            - At scale entry
      responses:
        '200':
          description: Array of per-item results (errors only for failed items)
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/TagValueByNameResult'
        4XX:
          description: Client error
        5XX:
          description: Factory I/O server error
  /api/tag/values-alwaysoff/by-name:
    put:
      summary: Set Always Off tag values by name
      description: Set the Always Off value of tags in the scene using the name to identify tags.
      operationId: setTagValuesAlwaysOffByName
      tags:
      - Tag Values by Name
      requestBody:
        description: Array of tag value objects with name and value.
        required: true
        content:
          application/json:
            schema:
              type: array
              items:
                $ref: '#/components/schemas/TagValueByNameInput'
      responses:
        '200':
          description: Array of per-item results (errors only for failed items)
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/TagValueByNameResult'
        4XX:
          description: Client error
        5XX:
          description: Factory I/O server error
  /api/tag/values-alwayson/by-name:
    put:
      summary: Set Always On tag values by name
      description: Set the Always On value of tags in the scene using the name to identify tags.
      operationId: setTagValuesAlwaysOnByName
      tags:
      - Tag Values by Name
      requestBody:
        description: Array of tag value objects with name and value.
        required: true
        content:
          application/json:
            schema:
              type: array
              items:
                $ref: '#/components/schemas/TagValueByNameInput'
      responses:
        '200':
          description: Array of per-item results (errors only for failed items)
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/TagValueByNameResult'
        4XX:
          description: Client error
        5XX:
          description: Factory I/O server error
components:
  schemas:
    TagValueByNameInput:
      type: object
      description: Input object for setting a tag value, identified by name.
      properties:
        name:
          type: string
          description: Name of the tag.
          example: Front conveyor
        value:
          description: Value to set (boolean for Bit, integer for Int, number for Float).
          oneOf:
          - type: boolean
          - type: number
      required:
      - name
      - value
    TagValueByNameResult:
      type: object
      description: Result for a single tag value operation, identified by name.
      properties:
        name:
          type: string
          description: Name of the tag.
        value:
          description: Current tag value (present on success).
          oneOf:
          - type: boolean
          - type: number
        code:
          type: integer
          description: HTTP-like error code (present on per-item error).
          example: 406
        error:
          type: string
          description: Error message (present on per-item error).
      required:
      - name
externalDocs:
  description: Factory I/O Web API Documentation
  url: https://docs.factoryio.com/manual/web-api/