Entur Discovery API

openapi: 3.2.0
info:
  title: Entur Discovery API
  version: 2026.10.0
  contact:
    name: Team Selgerintegrasjoner
    url: https://github.com/entur/omsa
  x-stability-level: draft
  description: 'Operations tagged discovery across 2 of this provider''s published API definitions: entur-omsa-openapi.json, entur-omsa-openapi.yml. Each path carries the servers of the definition it was published in.'
servers:
- url: https://api.entur.io/omsa/v1
  description: Production environment
- url: https://api.dev.entur.io/omsa/v1
  description: Development environment
- url: https://api.staging.entur.io/omsa/v1
  description: Staging environment
tags:
- name: Discovery
  description: Discovery endpoints for landing page, conformance, and API metadata.
paths:
  /:
    parameters:
    - $ref: '#/components/parameters/ET-Client-Name'
    - $ref: '#/components/parameters/X-Correlation-Id'
    get:
      tags:
      - Discovery
      summary: Get API landing page
      description: Gives a (technical & human readable) output describing how this API must be used. If the parameter f=html is supplied, a human readable page must be responded.
      externalDocs:
        url: https://app.swaggerhub.com/apis/OGC/ogcapi-features-1-example-1/1.0.1
      operationId: landingPage
      parameters:
      - $ref: '#/components/parameters/f'
      - $ref: '#/components/parameters/acceptLanguage'
      responses:
        '200':
          $ref: '#/components/responses/landingPageResponse'
        default:
          $ref: '#/components/responses/errorResponse'
      security:
      - OpenData: []
    servers:
    - url: https://api.entur.io/omsa/v1
      description: Production environment
    - url: https://api.dev.entur.io/omsa/v1
      description: Development environment
    - url: https://api.staging.entur.io/omsa/v1
      description: Staging environment
  /api:
    parameters:
    - $ref: '#/components/parameters/ET-Client-Name'
    - $ref: '#/components/parameters/X-Correlation-Id'
    get:
      tags:
      - Discovery
      summary: Get OpenAPI specification document
      description: Returns this OpenAPI document in JSON or YAML format.
      operationId: apiGet
      parameters:
      - name: f
        in: query
        description: Output format for the OpenAPI document.
        required: false
        style: form
        explode: true
        schema:
          type: string
          default: json
          enum:
          - json
          - yaml
          - yml
      responses:
        '200':
          description: General Success response.
          content:
            application/json:
              schema:
                type: string
              examples:
                default:
                  value: '{"openapi":"3.0.0"}'
            application/x-yaml:
              schema:
                type: string
              examples:
                default:
                  value: 'openapi: 3.0.0'
        default:
          $ref: '#/components/responses/errorResponse'
      security:
      - OpenData: []
    servers:
    - url: https://api.entur.io/omsa/v1
      description: Production environment
    - url: https://api.dev.entur.io/omsa/v1
      description: Development environment
    - url: https://api.staging.entur.io/omsa/v1
      description: Staging environment
  /conformance:
    parameters:
    - $ref: '#/components/parameters/ET-Client-Name'
    - $ref: '#/components/parameters/X-Correlation-Id'
    get:
      tags:
      - Discovery
      summary: Get API conformance declaration
      description: A list of all conformance classes specified in a standard that the server conforms to.
      operationId: getConformanceDeclaration
      parameters:
      - $ref: '#/components/parameters/f'
      - $ref: '#/components/parameters/acceptLanguage'
      responses:
        '200':
          $ref: '#/components/responses/conformanceDeclarationResponse'
        default:
          $ref: '#/components/responses/errorResponse'
      security:
      - OpenData: []
    servers:
    - url: https://api.entur.io/omsa/v1
      description: Production environment
    - url: https://api.dev.entur.io/omsa/v1
      description: Development environment
    - url: https://api.staging.entur.io/omsa/v1
      description: Staging environment
  /collections:
    parameters:
    - $ref: '#/components/parameters/ET-Client-Name'
    - $ref: '#/components/parameters/X-Correlation-Id'
    get:
      tags:
      - Discovery
      summary: List available collections
      description: returns a collection of available collection (like offers, packages, legs, support-requests and payments)
      operationId: getCollections
      responses:
        '200':
          description: A list of available collections
          headers:
            Content-Language:
              $ref: '#/components/headers/contentLanguage'
            Version:
              $ref: '#/components/headers/version'
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/collections'
        default:
          $ref: '#/components/responses/errorResponse'
      security:
      - OpenData: []
    servers:
    - url: https://api.entur.io/omsa/v1
      description: Production environment
    - url: https://api.dev.entur.io/omsa/v1
      description: Development environment
    - url: https://api.staging.entur.io/omsa/v1
      description: Staging environment
  /collections/{collectionId}:
    parameters:
    - $ref: '#/components/parameters/ET-Client-Name'
    - $ref: '#/components/parameters/X-Correlation-Id'
    get:
      tags:
      - Discovery
      summary: Get collection metadata
      description: a (machine or human) readable description of this collection
      operationId: describeCollection
      parameters:
      - name: collectionId
        in: path
        description: local identifier of a collection
        required: true
        style: simple
        explode: false
        schema:
          type: string
      - $ref: '#/components/parameters/acceptLanguage'
      responses:
        '200':
          description: description of data delivered by this collection
          headers:
            Content-Language:
              $ref: '#/components/headers/contentLanguage'
            Version:
              $ref: '#/components/headers/version'
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/collectionInfo'
            text/html:
              schema:
                type: string
        default:
          $ref: '#/components/responses/errorResponse'
      security:
      - OpenData: []
    servers:
    - url: https://api.entur.io/omsa/v1
      description: Production environment
    - url: https://api.dev.entur.io/omsa/v1
      description: Development environment
    - url: https://api.staging.entur.io/omsa/v1
      description: Staging environment
  /processes:
    parameters:
    - $ref: '#/components/parameters/ET-Client-Name'
    - $ref: '#/components/parameters/X-Correlation-Id'
    get:
      tags:
      - Discovery
      summary: List available processes
      description: 'The list of processes contains a summary of each process the OGC API - Processes offers, including the link to a more detailed description of the process.


        For more information, see Section 7.9.'
      operationId: getProcesses
      parameters:
      - $ref: '#/components/parameters/acceptLanguage'
      responses:
        '200':
          description: Information about the available processes
          headers:
            Version:
              $ref: '#/components/headers/version'
            Content-Language:
              $ref: '#/components/headers/contentLanguage'
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/processList'
        default:
          $ref: '#/components/responses/errorResponse'
      security:
      - OpenData: []
    servers:
    - url: https://api.entur.io/omsa/v1
      description: Production environment
    - url: https://api.dev.entur.io/omsa/v1
      description: Development environment
    - url: https://api.staging.entur.io/omsa/v1
      description: Staging environment
  /processes/{processID}:
    parameters:
    - $ref: '#/components/parameters/ET-Client-Name'
    - $ref: '#/components/parameters/X-Correlation-Id'
    get:
      tags:
      - Discovery
      summary: Get process description
      description: 'The process description contains information about inputs and outputs and a link to the execution-endpoint for the process. The Core does not mandate the use of a specific process description to specify the interface of a process. That said, the Core requirements class makes the following recommendation: Implementations SHOULD consider supporting the OGC process description. For more information, see Section 7.10.'
      operationId: getProcessDescription
      parameters:
      - $ref: '#/components/parameters/acceptLanguage'
      - name: processID
        in: path
        required: true
        style: simple
        explode: false
        schema:
          type: string
          enum:
          - search-offers
          - select-offers
          - add-traveller
          - update-traveller
          - remove-traveller
          - assign-asset
          - assign-ancillary
          - purchase-offers
          - purchase-package
          - confirm-package
          - release-package
          - extend-expiry-time
          - update-travel-document-validity
          - cancel-package
          - claim-refund-option
          - confirm-refund-option
      responses:
        '200':
          description: A process description.
          headers:
            Content-Language:
              $ref: '#/components/headers/contentLanguage'
            Version:
              $ref: '#/components/headers/version'
          content:
            application/json:
              schema:
                type: object
                externalDocs:
                  url: https://raw.githubusercontent.com/opengeospatial/ogcapi-processes/refs/heads/master/openapi/schemas/processes-core/process.yaml
        default:
          $ref: '#/components/responses/errorResponse'
      security:
      - OpenData: []
    servers:
    - url: https://api.entur.io/omsa/v1
      description: Production environment
    - url: https://api.dev.entur.io/omsa/v1
      description: Development environment
    - url: https://api.staging.entur.io/omsa/v1
      description: Staging environment
components:
  headers:
    contentLanguage:
      description: The language/localization of user-facing content, One IETF BCP 47 (RFC 5646) language tag (nl-NL)
      required: true
      style: simple
      explode: false
      schema:
        pattern: ^[a-zA-Z]+-[a-zA-Z]+$
        type: string
    version:
      description: the version used to format the response
      required: true
      style: simple
      explode: false
      schema:
        type: string
  schemas:
    collectionInfo:
      required:
      - id
      - links
      type: object
      properties:
        id:
          type: string
          description: identifier of the collection used, for example, in URIs
          examples:
          - dem
        title:
          type: string
          description: human readable title of the collection
          examples:
          - Digital Elevation Model
        description:
          type: string
          description: a description of the data in the collection
          examples:
          - A Digital Elevation Model.
        links:
          type: array
          items:
            $ref: '#/components/schemas/link'
        extent:
          type: object
          externalDocs:
            url: https://raw.githubusercontent.com/opengeospatial/ogcapi-processes/refs/heads/master/openapi/schemas/common-geodata/extent-uad.yaml
        itemType:
          type: string
          description: indicator about the type of the items in the collection if the collection has an accessible /collections/{collectionId}/items endpoint
          default: unknown
        crs:
          type: array
          description: the list of coordinate reference systems supported by the API; the first item is the default coordinate reference system
          items:
            type: string
          default:
          - http://www.opengis.net/def/crs/OGC/1.3/CRS84
          examples:
          - - http://www.opengis.net/def/crs/OGC/1.3/CRS84
            - http://www.opengis.net/def/crs/EPSG/0/4326
        dataType:
          $ref: '#/components/schemas/dataType'
        geometryDimension:
          maximum: 3
          minimum: 0
          type: integer
          description: 'The geometry dimension of the features shown in this layer (0: points, 1: curves, 2: surfaces, 3: solids), unspecified: mixed or unknown'
        minScaleDenominator:
          type: number
          description: Minimum scale denominator for usage of the collection
        maxScaleDenominator:
          type: number
          description: Maximum scale denominator for usage of the collection
        minCellSize:
          type: number
          description: Minimum cell size for usage of the collection
        maxCellSize:
          type: number
          description: Maximum cell size for usage of the collection
    processSummary:
      allOf:
      - $ref: '#/components/schemas/descriptionType'
      - required:
        - id
        - version
        type: object
        properties:
          id:
            type: string
          version:
            type: string
          jobControlOptions:
            type: array
            items:
              $ref: '#/components/schemas/jobControlOptions'
          links:
            type: array
            items:
              $ref: '#/components/schemas/link'
    processList:
      required:
      - links
      - processes
      type: object
      properties:
        processes:
          type: array
          items:
            $ref: '#/components/schemas/processSummary'
        links:
          type: array
          items:
            $ref: '#/components/schemas/link'
    day:
      type: string
      enum:
      - MON
      - TUE
      - WED
      - THU
      - FRI
      - SAT
      - SUN
      x-tm: DAY OF WEEK
    metadata:
      oneOf:
      - allOf:
        - $ref: '#/components/schemas/link'
        - type: object
          properties:
            role:
              type: string
      - type: object
        properties:
          role:
            type: string
          title:
            type: string
          lang:
            type: string
          value:
            oneOf:
            - type: string
            - type: object
    longString:
      maxLength: 10000
      type: string
      description: long string, memos etc (length 0-10.000)
    shortString:
      maxLength: 75
      type: string
      description: short string, display names (length 0-75)
    normalInt:
      maximum: 1000
      minimum: 0
      type: integer
      description: default length for an integer (0-1000)
      default: 0
    descriptionType:
      type: object
      properties:
        title:
          type: string
        description:
          type: string
        keywords:
          type: array
          items:
            type: string
        metadata:
          type: array
          items:
            $ref: '#/components/schemas/metadata'
    dateTime:
      type: string
      description: https://www.rfc-editor.org/rfc/rfc3339#section-5.6, date-time (2019-10-12T07:20:50.52Z)
      format: date-time
      x-pattern: ^[0-9]{4}-[0-9]{2}-[0-9]{2}T[0-9]{2}:[0-9]{2}:[0-9]{2}Z$
    jobControlOptions:
      type: string
      enum:
      - sync-execute
      - async-execute
      - dismiss
    confClasses:
      required:
      - conformsTo
      type: object
      properties:
        conformsTo:
          type: array
          items:
            type: string
            examples:
            - http://www.opengis.net/spec/ogcapi-processes-1/1.0/conf/core
    collections:
      required:
      - collections
      - links
      type: object
      properties:
        links:
          type: array
          items:
            $ref: '#/components/schemas/link'
        timeStamp:
          type: string
          format: date-time
        numberMatched:
          minimum: 0
          type: integer
          examples:
          - 1
        numberReturned:
          minimum: 0
          type: integer
          examples:
          - 1
        collections:
          type: array
          items:
            $ref: '#/components/schemas/collectionInfo'
    httpStatus:
      maximum: 599
      minimum: 100
      type: integer
      description: HTTP status code (100–599)
    link:
      required:
      - href
      - rel
      type: object
      properties:
        rel:
          type: string
          description: the action that can be performed OR part of the URI allowed values include the 'processId's, prefixes for the referenced data sources, prefixes for deeplinks ('apple' and 'android'), OGC compliant ones (alternative, next, etc)
        href:
          $ref: '#/components/schemas/url'
        type:
          $ref: '#/components/schemas/shortString'
        method:
          type: string
          description: to indicate the http method.
          enum:
          - POST
          - GET
          - PUT
          - DELETE
          - PATCH
        description:
          type: string
          description: the description of the external data source
        body:
          type: object
          description: the (prefilled) body for the request
        headers:
          type: object
          additionalProperties:
            type: string
        isMandatory:
          type: boolean
          description: is this link informative, or must it be used?
        hash:
          type: string
          description: to validate that the content of the link hasn't been changed.
        validity:
          $ref: '#/components/schemas/temporalParameter'
      additionalProperties: false
      x-externalDocs:
        url: https://github.com/opengeospatial/ogcapi-processes/raw/refs/heads/master/openapi/schemas/common-core/link.yaml
    temporalParameter:
      required:
      - type
      type: object
      properties:
        type:
          pattern: ^(temporal)$
          type: string
        startTime:
          $ref: '#/components/schemas/dateTime'
        endTime:
          $ref: '#/components/schemas/dateTime'
        duration:
          $ref: '#/components/schemas/normalInt'
        dayType:
          $ref: '#/components/schemas/day'
      x-tm: TEMPORAL VALIDITY PARAMETERS
    dataType:
      oneOf:
      - type: string
      - type: string
        enum:
        - map
        - vector
        - coverage
    error:
      required:
      - category
      - code
      - detail
      - hint
      - status
      - title
      - type
      type: object
      properties:
        type:
          $ref: '#/components/schemas/url'
        title:
          $ref: '#/components/schemas/shortString'
        status:
          $ref: '#/components/schemas/httpStatus'
        detail:
          $ref: '#/components/schemas/longString'
        instance:
          $ref: '#/components/schemas/url'
        links:
          type: array
          items:
            $ref: '#/components/schemas/link'
        code:
          type: string
          description: Stable machine-readable problem code.
        category:
          type: string
          description: Public problem category used by curated problems.
          enum:
          - authorization
          - validation
          - downstream
          - state
          - resource
          - availability
          - server
        hint:
          type: string
          description: Short client-facing remediation hint.
        context:
          type: object
          additionalProperties: true
          description: Safe structured context fields for the problem.
      additionalProperties: true
      description: JSON schema for exceptions based on RFC 7807
    landingPage:
      required:
      - links
      type: object
      properties:
        title:
          type: string
          examples:
          - Example processing server
        description:
          type: string
          examples:
          - Example server implementing the OGC API - Processes 1.0 Standard
        attribution:
          title: attribution for the Processes API
          type: string
          description: The `attribution` should be short and intended for presentation to a user, for example, in a corner of a map. Parts of the text can be links to other resources if additional information is needed. The string can include HTML markup.
        links:
          type: array
          items:
            $ref: '#/components/schemas/link'
    url:
      type: string
      description: valid URL
      format: uri
  responses:
    conformanceDeclarationResponse:
      description: 'The URIs of all conformance classes supported by the server.


        To support "generic" clients that want to access multiple

        OGC API Features implementations - and not "just" a specific

        API / server, the server declares the conformance

        classes it implements and conforms to.'
      headers:
        Content-Language:
          $ref: '#/components/headers/contentLanguage'
        Version:
          $ref: '#/components/headers/version'
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/confClasses'
        text/html:
          schema:
            type: string
    landingPageResponse:
      description: The reponse containing a landing page
      headers:
        Version:
          $ref: '#/components/headers/version'
        Content-Language:
          $ref: '#/components/headers/contentLanguage'
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/landingPage'
        text/html:
          schema:
            type: string
    errorResponse:
      description: Bad request.
      headers:
        Version:
          $ref: '#/components/headers/version'
        Content-Language:
          $ref: '#/components/headers/contentLanguage'
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/error'
  parameters:
    X-Correlation-Id:
      name: X-Correlation-Id
      in: header
      description: Correlation id
      required: false
      style: simple
      explode: false
      schema:
        type: string
    ET-Client-Name:
      name: ET-Client-Name
      in: header
      description: 'Entur Client Header.

        It is required that all consumers identify themselves by using this header.

        Entur will deploy strict rate-limiting policies on API-consumers who do not identify with a header and reserves the right to block unidentified consumers.

        The structure of ET-Client-Name should be: `<company>-<application>`.'
      required: false
      style: simple
      explode: false
      schema:
        type: string
    f:
      name: f
      in: query
      description: The optional f parameter indicates the output format that the server shall provide as part of the response document.  The default format is JSON.
      required: false
      style: form
      explode: false
      schema:
        type: string
        default: json
        enum:
        - json
        - html
    acceptLanguage:
      name: Accept-Language
      in: header
      required: true
      style: simple
      explode: false
      schema:
        $ref: '#/components/schemas/shortString'
      x-externalDocs:
        description: A comma-separated list of BCP 47 (RFC 5646) language tags and optional weights as described in IETF RFC7231 section 5.3.5. A list of the languages/localizations the user would like to see the results in. For user privacy and ease of use on the TO side, this list should be kept as short as possible
  securitySchemes:
    OpenData:
      type: http
      description: this data set is open. If it is one of the options, it is up to the implementing party whether it is open or not.
      scheme: none
    BearerAuth:
      type: http
      description: This authentication is the basic one. If you have obtained a JWT (somewhere), you can use this token to identify you at endpoints.
      scheme: bearer
      bearerFormat: JWT
    OAuth:
      type: oauth2
      description: This flow facilitates to get access tokens based on username/password. These can be obtained by the owner of the service, look at the landing page to find out how to contact it.
      flows:
        authorizationCode:
          authorizationUrl: /
          tokenUrl: /oauth/token
          scopes:
            processes: Access to /processes/
    OAuthPKI:
      type: oauth2
      description: OAuth 2.0 with PKI and mutual TLS for client authentication The client sends its X.509 during the handshake. The server validates and accepts the certificate. The call to the /oauth/token can use the provided credentials (O or CN) to provide a access_token (JWT).
      flows:
        clientCredentials:
          tokenUrl: /oauth/token
          scopes:
            processes: Access to /processes/
x-refined-from:
- entur-omsa-openapi.json
- entur-omsa-openapi.yml