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

# List geo metros



## OpenAPI

````yaml /openapi/buyer.yaml get /api/v2/buyer/targeting/geo-metros
openapi: 3.1.0
info:
  title: Semicola Exchange buyer API
  version: 2.0.0
  description: >-
    Buyer endpoints: advertisers, storefronts and connections, product
    discovery, campaigns, proposals, media buys, creatives and reporting. Every
    write accepts an Idempotency-Key header.
servers:
  - url: https://api.semicola.com
security:
  - bearerAuth: []
  - sessionCookie: []
tags:
  - name: Advertisers
  - name: Storefronts
  - name: Product Discovery
  - name: Campaigns
  - name: Media Buys
  - name: Update Proposals
  - name: Optimization Suggestions
  - name: Creatives
  - name: Catalogs
  - name: Reporting
  - name: Event Sources
  - name: Webhooks
  - name: Tasks
  - name: Audit Logs
  - name: Activity
paths:
  /api/v2/buyer/targeting/geo-metros:
    get:
      tags:
        - Campaigns
      summary: List geo metros
      operationId: getBuyerTargetingGeoMetros
      parameters:
        - name: system
          in: query
          required: false
          schema:
            default: nielsen_dma
            type: string
            enum:
              - nielsen_dma
            description: Supported targeting dimension system
          description: Supported targeting dimension system
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                type: object
                properties:
                  data:
                    anyOf:
                      - type: object
                        properties:
                          system:
                            type: string
                            enum:
                              - nielsen_dma
                            description: Supported targeting dimension system
                          locale:
                            type: string
                            enum:
                              - en-US
                          entries:
                            type: array
                            items:
                              type: object
                              properties:
                                code:
                                  type: string
                                name:
                                  type: string
                              required:
                                - code
                                - name
                              additionalProperties: false
                          note:
                            description: >-
                              Present when the dictionary has no market names
                              yet; codes still work.
                            type: string
                        required:
                          - system
                          - locale
                          - entries
                        additionalProperties: false
                      - type: 'null'
                  error:
                    anyOf:
                      - type: object
                        properties:
                          code:
                            type: string
                          message:
                            type: string
                          field:
                            type: string
                          details: {}
                        required:
                          - code
                          - message
                        additionalProperties: false
                      - type: 'null'
                required:
                  - data
                  - error
                additionalProperties: false
        default:
          description: >-
            Error envelope `{data: null, error: {code, message, field?,
            details?}}`.
components:
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      description: API key or OAuth access token.
    sessionCookie:
      type: apiKey
      in: cookie
      name: sc_session

````