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

# List published sources

> Returns currently available source IDs with metric/point counts and the latest fetched time.



## OpenAPI

````yaml /openapi.json get /api/v1/sources
openapi: 3.1.0
info:
  title: k-Data
  version: 0.1.0
  description: >-
    Preview read-only API for reshaped public data collected from Kushiro City
    sources. Response shapes, URLs, and published datasets may change without
    notice.
  license:
    name: CC BY 4.0
    url: https://creativecommons.org/licenses/by/4.0/deed.ja
servers:
  - url: https://data.kushiro.app
    description: Production
security: []
tags:
  - name: service
    description: Service metadata and health endpoints.
  - name: sources
    description: Published source summaries.
  - name: metrics
    description: Numeric data records.
  - name: points
    description: >-
      Facility and location-style data records such as public facilities, AED
      locations, evacuation sites, and indexes.
  - name: terms
    description: Terms of use and attribution notes.
paths:
  /api/v1/sources:
    get:
      tags:
        - sources
      summary: List published sources
      description: >-
        Returns currently available source IDs with metric/point counts and the
        latest fetched time.
      operationId: listSources
      responses:
        '200':
          description: Published source summaries.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/SourceList'
              examples:
                default:
                  value:
                    sources:
                      - source_id: kushiro_population_households_monthly
                        metric_count: 840
                        point_count: 0
                        latest_fetched_at: '2026-04-29T00:00:00.000Z'
                    count: 1
        '500':
          $ref: '#/components/responses/InternalServerError'
components:
  schemas:
    SourceList:
      type: object
      required:
        - sources
        - count
      properties:
        sources:
          type: array
          items:
            $ref: '#/components/schemas/SourceSummary'
        count:
          type: integer
          minimum: 0
      additionalProperties: false
    SourceSummary:
      type: object
      required:
        - source_id
        - metric_count
        - point_count
        - latest_fetched_at
      properties:
        source_id:
          type: string
        metric_count:
          type: integer
          minimum: 0
        point_count:
          type: integer
          minimum: 0
        latest_fetched_at:
          type:
            - string
            - 'null'
          format: date-time
      additionalProperties: false
    InternalServerError:
      type: object
      required:
        - error
      properties:
        error:
          type: string
          example: internal server error
      additionalProperties: false
  responses:
    InternalServerError:
      description: Unexpected server error.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/InternalServerError'
          examples:
            default:
              value:
                error: internal server error

````