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

# List a project's measurement tags with usage counts

> List the distinct tags on a project's measurements, most used first.

Feeds the tag picker's suggestions. Only measurements the caller can read
contribute to the counts.



## OpenAPI

````yaml https://api.ionworks.com/openapi.json get /cell_measurements/tags
openapi: 3.1.0
info:
  title: FastAPI
  version: 0.1.0
servers:
  - url: https://api.ionworks.com
    description: Production
security: []
paths:
  /cell_measurements/tags:
    get:
      tags:
        - Cell Measurements
      summary: List a project's measurement tags with usage counts
      description: >-
        List the distinct tags on a project's measurements, most used first.


        Feeds the tag picker's suggestions. Only measurements the caller can
        read

        contribute to the counts.
      operationId: list_measurement_tags_cell_measurements_tags_get
      parameters:
        - name: project_id
          in: query
          required: true
          schema:
            type: string
            format: uuid
            title: Project Id
          description: Project whose tags to list.
        - name: q
          in: query
          required: false
          schema:
            anyOf:
              - type: string
              - type: 'null'
            description: Case-insensitive substring the tag must contain.
            title: Q
          description: Case-insensitive substring the tag must contain.
        - name: limit
          in: query
          required: false
          schema:
            type: integer
            maximum: 1000
            minimum: 1
            default: 50
            title: Limit
        - name: offset
          in: query
          required: false
          schema:
            type: integer
            minimum: 0
            default: 0
            title: Offset
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/MeasurementTagUsageListResponse'
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
components:
  schemas:
    MeasurementTagUsageListResponse:
      properties:
        items:
          items:
            $ref: '#/components/schemas/MeasurementTagUsage'
          type: array
          title: Items
        count:
          type: integer
          title: Count
        total:
          type: integer
          title: Total
      type: object
      required:
        - items
        - count
        - total
      title: MeasurementTagUsageListResponse
      description: A page of a project's distinct measurement tags, most used first.
    HTTPValidationError:
      properties:
        detail:
          items:
            $ref: '#/components/schemas/ValidationError'
          type: array
          title: Detail
      type: object
      title: HTTPValidationError
    MeasurementTagUsage:
      properties:
        tag:
          type: string
          title: Tag
        usage_count:
          type: integer
          title: Usage Count
      type: object
      required:
        - tag
        - usage_count
      title: MeasurementTagUsage
      description: One distinct tag in a project and how many measurements carry it.
    ValidationError:
      properties:
        loc:
          items:
            anyOf:
              - type: string
              - type: integer
          type: array
          title: Location
        msg:
          type: string
          title: Message
        type:
          type: string
          title: Error Type
        input:
          title: Input
        ctx:
          type: object
          title: Context
      type: object
      required:
        - loc
        - msg
        - type
      title: ValidationError

````

This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.