bund.dev

bund.dev Airquality API

The airquality API from bund.dev — 2 operation(s) for airquality.

Documentation GitHub OpenAPI

Operations 2

0 of 2 operations are conformant: apis.io called them with no credentials and the responses matched this contract; 1 more answered but could not be checked against a schema. Checked 2026-11-12. how this works · status file

GET /airquality/json Get airquality data #

GET /airquality/limits Get airquality date limits observed #

Work with this as data

Every API here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for apis

7 MCP tools reach this

find_apisBrowse and filter every API in the catalog.
get_api_artifactsOne API's artifacts, grouped by type.
get_openapiThe primary OpenAPI for this API.
find_similar_apisAPIs that look like this one.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

All 92 tools →

Call it yourself

curl for this page

This API

curl "https://apis.io/api/v1/apis/bund-dev:bund-dev-airquality-api"

All apis

curl "https://apis.io/api/v1/apis?limit=25"

Calls without X-API-Key need no key. Calls with it need a paid plan — get a key.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have.

OpenAPI Specification

openapi: 3.2.0
info:
  title: Bund Dev Airquality API
  version: 2.0.1
  contact:
    email: immission@uba.de
    name: API Support
  description: 'Operations tagged airquality across 2 of this provider''s published API definitions: luftqualitaet.yaml, bund-dev-luftqualitaet-openapi.yml. Each path carries the servers of the definition it was published in.'
servers:
- url: https://www.umweltbundesamt.de/api/air_data/v2
  description: Public API
tags:
- name: airquality
  x-displayName: Air quality
paths:
  /airquality/json:
    get:
      description: This entry point returns airquality data for the provided parameters.
      parameters:
      - $ref: '#/components/parameters/dateFromReq'
      - $ref: '#/components/parameters/timeFromReq'
      - $ref: '#/components/parameters/dateToReq'
      - $ref: '#/components/parameters/timeToReq'
      - $ref: '#/components/parameters/station'
      responses:
        '200':
          description: successful operation
          content:
            application/json:
              schema:
                type: object
                properties:
                  indices:
                    description: Description of indices
                    example:
                      station id: null
                  data:
                    type: object
                    items:
                      $ref: '#/components/schemas/airquality'
                    example:
                      '6':
                        '2019-01-01 00:00:00':
                          '0': '2019-01-01 01:00:00'
                          '1': 0
                          '2': 0
                          '3':
                            '0':
                              '0': 3
                              '1': 20
                              '2': 0
                              '3': 0.333
        '422':
          description: required parameter is missing.
      summary: Get airquality data
      tags:
      - airquality
      operationId: getAirqualityJson
      x-operation-id-source: derived
    servers:
    - url: https://www.umweltbundesamt.de/api/air_data/v2
      description: Public API
  /airquality/limits:
    get:
      description: This entry point returns the date limits of airquality stations.
      responses:
        '200':
          description: successful operation
          content:
            application/json:
              schema:
                type: object
                properties:
                  indices:
                    description: Description of indices
                    example:
                      station_id:
                        '0': limit date start min (CET)
                        '1': limit date start max (CET)
                  data:
                    type: array
                    items:
                      $ref: '#/components/schemas/airqualitylimits'
                    example:
                    - '30': null
                      '0': '2016-01-01 00:00:00'
                      '1': '2019-09-03 11:00:00'
      summary: Get airquality date limits
      tags:
      - airquality
      operationId: getAirqualityLimits
      x-operation-id-source: derived
    servers:
    - url: https://www.umweltbundesamt.de/api/air_data/v2
      description: Public API
components:
  parameters:
    dateFromReq:
      name: date_from
      description: A date
      in: query
      required: true
      schema:
        format: YYYY-MM-DD
        type: string
      example: '2019-01-01'
    timeToReq:
      name: time_to
      description: An hour.
      in: query
      required: true
      schema:
        type: integer
        minimum: 1
        maximum: 24
      example: 9
    timeFromReq:
      name: time_from
      description: An hour.
      in: query
      required: true
      schema:
        type: integer
        minimum: 1
        maximum: 24
      example: 9
    dateToReq:
      name: date_to
      description: A date
      in: query
      required: true
      schema:
        format: YYYY-MM-DD
        type: string
      example: '2019-01-01'
    station:
      name: station
      description: Id of station
      in: query
      schema:
        type: integer
      example: 769
  schemas:
    airqualitylimits:
      type: object
      properties:
        station id:
          properties:
            '0':
              description: Minimum date start (CET)
              example: '2019-02-16 09:00:00'
              format: YYYY-MM-DD HH:MM:SS
              type: string
            '1':
              description: Maximum date start (CET)
              example: '2019-02-19 10:00:00'
              format: YYYY-MM-DD HH:MM:SS
              type: string
          type: object
    airquality:
      type: object
      properties:
        station id:
          type: array
          items:
            type: object
            properties:
              date start (CET):
                type: object
                properties:
                  '0':
                    description: Date of end of measuring in CET
                    type: string
                    example: '2019-02-19 10:00:00'
                  '1':
                    description: Airquality index for all components
                    type: integer
                    example: 1
                    minimum: 0
                    maximum: 4
                  '2':
                    description: Flag if data is incomplete (not all components available)
                    type: integer
                    minimum: 0
                    maximum: 1
                    example: 1
                  3 and following:
                    description: Object for component
                    type: array
                    items:
                      type: object
                      properties:
                        '0':
                          description: Id of component
                          type: integer
                          example: 1
                        '1':
                          description: The value
                          type: number
                          example: 24
                        '2':
                          description: Airquality index of this component
                          type: integer
                          example: 1
                          minimum: 0
                          maximum: 4
                        '3':
                          description: Decimal representation of percent in index thresholds. 0.x is between index 0 and 1, 1.x is between index 1 and 2...
                          type: string
                          format: float
                          example: '0.25'
                          minimum: 0
                          maximum: 5
x-refined-from:
- luftqualitaet.yaml
- bund-dev-luftqualitaet-openapi.yml