3GPP TS 29.222 CAPIF Publish Service API

openapi: 3.0.0

info:
  title: CAPIF_Publish_Service_API
  description: |
    API for publishing service APIs.  
    © 2025, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TSDSI, TTA, TTC).  
    All rights reserved.
  version: "1.4.0"

externalDocs:
  description: 3GPP TS 29.222 V19.5.0 Common API Framework for 3GPP Northbound APIs
  url: https://www.3gpp.org/ftp/Specs/archive/29_series/29.222/

servers:
  - url: '{apiRoot}/published-apis/v1'
    variables:
      apiRoot:
        default: https://example.com
        description: apiRoot as defined in clause 7.5 of 3GPP TS 29.222.

paths:
# APF published API
  /{apfId}/service-apis:
    post:
      description: Publish a new API.
      operationId: CreateAPFPubAPIs
      tags:
        - APF published APIs (Collection)
      parameters:
        - name: apfId
          in: path
          required: true
          schema:
            type: string
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/ServiceAPIDescription'
      responses:
        '201':
          description: >
            Service API published successfully The URI of the created resource
            shall be returned in the "Location" HTTP header.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ServiceAPIDescription'
          headers:
            Location:
              description: >
                Contains the URI of the newly created resource, according to the structure 
                {apiRoot}/published-apis/v1/{apfId}/service-apis/{serviceApiId}
              required: true
              schema:
                type: string
        '400':
          $ref: 'TS29122_CommonData.yaml#/components/responses/400'
        '401':
          $ref: 'TS29122_CommonData.yaml#/components/responses/401'
        '403':
          $ref: 'TS29122_CommonData.yaml#/components/responses/403'
        '404':
          $ref: 'TS29122_CommonData.yaml#/components/responses/404'
        '411':
          $ref: 'TS29122_CommonData.yaml#/components/responses/411'
        '413':
          $ref: 'TS29122_CommonData.yaml#/components/responses/413'
        '415':
          $ref: 'TS29122_CommonData.yaml#/components/responses/415'
        '429':
          $ref: 'TS29122_CommonData.yaml#/components/responses/429'
        '500':
          $ref: 'TS29122_CommonData.yaml#/components/responses/500'
        '503':
          $ref: 'TS29122_CommonData.yaml#/components/responses/503'
        default:
          $ref: 'TS29122_CommonData.yaml#/components/responses/default'
    get:
      description: Retrieve all published APIs.
      operationId: GetAPFPubAPIs
      tags:
        - APF published APIs (Collection)
      parameters:
        - name: apfId
          in: path
          required: true
          schema:
            type: string
      responses:
        '200':
          description: >
            Definition of all service API(s) published by the API publishing function.
            If an empty array is provided, it indicates that there is no active published API at the
            CCF.
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/ServiceAPIDescription'
                minItems: 0
        '307':
          $ref: 'TS29122_CommonData.yaml#/components/responses/307'
        '308':
          $ref: 'TS29122_CommonData.yaml#/components/responses/308'
        '400':
          $ref: 'TS29122_CommonData.yaml#/components/responses/400'
        '401':
          $ref: 'TS29122_CommonData.yaml#/components/responses/401'
        '403':
          $ref: 'TS29122_CommonData.yaml#/components/responses/403'
        '404':
          $ref: 'TS29122_CommonData.yaml#/components/responses/404'
        '406':
          $ref: 'TS29122_CommonData.yaml#/components/responses/406'
        '429':
          $ref: 'TS29122_CommonData.yaml#/components/responses/429'
        '500':
          $ref: 'TS29122_CommonData.yaml#/components/responses/500'
        '503':
          $ref: 'TS29122_CommonData.yaml#/components/responses/503'
        default:
          $ref: 'TS29122_CommonData.yaml#/components/responses/default'

# Individual APF published API
  /{apfId}/service-apis/{serviceApiId}:
    get:
      description: Retrieve a published service API.
      operationId: GetIndAPFPubAPI
      tags:
        - Individual APF published API (Document)
      parameters:
        - name: serviceApiId
          in: path
          required: true
          schema:
            type: string
        - name: apfId
          in: path
          required: true
          schema:
            type: string
      responses:
        '200':
          description: Definition of all service API(s) published by the API publishing function.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ServiceAPIDescription'
        '307':
          $ref: 'TS29122_CommonData.yaml#/components/responses/307'
        '308':
          $ref: 'TS29122_CommonData.yaml#/components/responses/308'
        '400':
          $ref: 'TS29122_CommonData.yaml#/components/responses/400'
        '401':
          $ref: 'TS29122_CommonData.yaml#/components/responses/401'
        '403':
          $ref: 'TS29122_CommonData.yaml#/components/responses/403'
        '404':
          $ref: 'TS29122_CommonData.yaml#/components/responses/404'
        '406':
          $ref: 'TS29122_CommonData.yaml#/components/responses/406'
        '429':
          $ref: 'TS29122_CommonData.yaml#/components/responses/429'
        '500':
          $ref: 'TS29122_CommonData.yaml#/components/responses/500'
        '503':
          $ref: 'TS29122_CommonData.yaml#/components/responses/503'
        default:
          $ref: 'TS29122_CommonData.yaml#/components/responses/default'
    put:
      description: Update a published service API.
      operationId: UpdateIndAPFPubAPI
      tags:
        - Individual APF published API (Document)
      parameters:
        - name: serviceApiId
          in: path
          required: true
          schema:
            type: string
        - name: apfId
          in: path
          required: true
          schema:
            type: string
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/ServiceAPIDescription'
      responses:
        '200':
          description: Definition of service API updated successfully.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ServiceAPIDescription'
        '204':
          description: No Content
        '307':
          $ref: 'TS29122_CommonData.yaml#/components/responses/307'
        '308':
          $ref: 'TS29122_CommonData.yaml#/components/responses/308'
        '400':
          $ref: 'TS29122_CommonData.yaml#/components/responses/400'
        '401':
          $ref: 'TS29122_CommonData.yaml#/components/responses/401'
        '403':
          $ref: 'TS29122_CommonData.yaml#/components/responses/403'
        '404':
          $ref: 'TS29122_CommonData.yaml#/components/responses/404'
        '411':
          $ref: 'TS29122_CommonData.yaml#/components/responses/411'
        '413':
          $ref: 'TS29122_CommonData.yaml#/components/responses/413'
        '415':
          $ref: 'TS29122_CommonData.yaml#/components/responses/415'
        '429':
          $ref: 'TS29122_CommonData.yaml#/components/responses/429'
        '500':
          $ref: 'TS29122_CommonData.yaml#/components/responses/500'
        '503':
          $ref: 'TS29122_CommonData.yaml#/components/responses/503'
        default:
          $ref: 'TS29122_CommonData.yaml#/components/responses/default'
    patch:
      description: Modify an existing published service API.
      operationId: ModifyIndAPFPubAPI
      tags:
        - Individual APF published API (Document)
      parameters:
        - name: serviceApiId
          in: path
          required: true
          schema:
            type: string
        - name: apfId
          in: path
          required: true
          schema:
            type: string
      requestBody:
        required: true
        content:
          application/merge-patch+json:
            schema:
              $ref: '#/components/schemas/ServiceAPIDescriptionPatch'
      responses:
        '200':
          description: >
            The definition of the service API is modified successfully and a
            representation of the updated service API is returned in the request body.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ServiceAPIDescription'
        '204':
          description: No Content. The definition of the service API is modified successfully.
        '307':
          $ref: 'TS29122_CommonData.yaml#/components/responses/307'
        '308':
          $ref: 'TS29122_CommonData.yaml#/components/responses/308'
        '400':
          $ref: 'TS29122_CommonData.yaml#/components/responses/400'
        '401':
          $ref: 'TS29122_CommonData.yaml#/components/responses/401'
        '403':
          $ref: 'TS29122_CommonData.yaml#/components/responses/403'
        '404':
          $ref: 'TS29122_CommonData.yaml#/components/responses/404'
        '411':
          $ref: 'TS29122_CommonData.yaml#/components/responses/411'
        '413':
          $ref: 'TS29122_CommonData.yaml#/components/responses/413'
        '415':
          $ref: 'TS29122_CommonData.yaml#/components/responses/415'
        '429':
          $ref: 'TS29122_CommonData.yaml#/components/responses/429'
        '500':
          $ref: 'TS29122_CommonData.yaml#/components/responses/500'
        '503':
          $ref: 'TS29122_CommonData.yaml#/components/responses/503'
        default:
          $ref: 'TS29122_CommonData.yaml#/components/responses/default'
    delete:
      description: Unpublish a published service API.
      operationId: DeleteIndAPFPubAPI
      tags:
        - Individual APF published API (Document)
      parameters:
        - name: serviceApiId
          in: path
          required: true
          schema:
            type: string
        - name: apfId
          in: path
          required: true
          schema:
            type: string
      responses:
        '204':
          description: The individual published service API matching the serviceAPiId is deleted.
        '307':
          $ref: 'TS29122_CommonData.yaml#/components/responses/307'
        '308':
          $ref: 'TS29122_CommonData.yaml#/components/responses/308'
        '400':
          $ref: 'TS29122_CommonData.yaml#/components/responses/400'
        '401':
          $ref: 'TS29122_CommonData.yaml#/components/responses/401'
        '403':
          $ref: 'TS29122_CommonData.yaml#/components/responses/403'
        '404':
          $ref: 'TS29122_CommonData.yaml#/components/responses/404'
        '429':
          $ref: 'TS29122_CommonData.yaml#/components/responses/429'
        '500':
          $ref: 'TS29122_CommonData.yaml#/components/responses/500'
        '503':
          $ref: 'TS29122_CommonData.yaml#/components/responses/503'
        default:
          $ref: 'TS29122_CommonData.yaml#/components/responses/default'

# Components

components:
  schemas:
# Data Type for representations
    ServiceAPIDescription:
      type: object
      description: Represents the description of a service API as published by the APF.
      properties:
        apiName:
          type: string
          description: >
             Contains the API name set to the value of the "<apiName>" placeholder of the API URI as
             defined in clause 5.2.4 of 3GPP TS 29.122 [14].
        apiId:
          type: string
          description: >
            API identifier assigned by the CAPIF core function to the published service API.
            Shall not be present in the HTTP POST request from the API publishing function
            to the CAPIF core function. Shall be present in the HTTP POST response from the
            CAPIF core function to the API publishing function and in the HTTP GET response
            from the CAPIF core function to the API invoker (discovery API).
        apiStatus:
          $ref: '#/components/schemas/ApiStatus'
        aefProfiles:
          type: array
          items:
            $ref: '#/components/schemas/AefProfile'
          minItems: 1
          description: >
            AEF profile information, which includes the exposed API details (e.g. protocol).
        description:
          type: string
          description: Text description of the API
        supportedFeatures:
          $ref: 'TS29571_CommonData.yaml#/components/schemas/SupportedFeatures'
        shareableInfo:
          $ref: '#/components/schemas/ShareableInformation'
        serviceAPICategory:
          type: string
          description: The service API category to which the service API belongs to.
        apiSuppFeats:
          $ref: 'TS29571_CommonData.yaml#/components/schemas/SupportedFeatures'
        pubApiPath:
          $ref: '#/components/schemas/PublishedApiPath'
        ccfId:
          type: string
          description: CAPIF core function identifier.
        apiProvName:
          type: string
          description: Represents the API provider name.
        netSliceInfo:
          type: array
          items:
            $ref: 'TS29435_NSCE_PolicyManagement.yaml#/components/schemas/NetSliceId'
          minItems: 1
          description: Represents the applicable network slice identifiers.
      required:
        - apiName

    InterfaceDescription:
      type: object
      description: Represents the description of an API's interface.
      properties:
        ipv4Addr:
          $ref: 'TS29122_CommonData.yaml#/components/schemas/Ipv4Addr'
        ipv6Addr:
          $ref: 'TS29122_CommonData.yaml#/components/schemas/Ipv6Addr'
        fqdn:
          $ref: 'TS29571_CommonData.yaml#/components/schemas/Fqdn'
        port:
          $ref: 'TS29122_CommonData.yaml#/components/schemas/Port'
        apiPrefix:
          type: string
          description: >
            A string representing a sequence of path segments that starts with the slash character.
        securityMethods:
          type: array
          items:
            $ref: '#/components/schemas/SecurityMethod'
          minItems: 1
          description: >
            Security methods supported by the interface, it take precedence over
            the security methods provided in AefProfile, for this specific interface.
        grantTypes:
          type: array
          items:
            $ref: 'TS29222_CAPIF_Security_API.yaml#/components/schemas/OAuthGrantType'
          minItems: 1
      oneOf:
        - required: [ipv4Addr]
        - required: [ipv6Addr]
        - required: [fqdn]

    AefProfile:
      type: object
      description: Represents the AEF profile data.
      properties:
        aefId:
          type: string
          description: Identifier of the API exposing function
        versions:
          type: array
          items:
            $ref: '#/components/schemas/Version'
          minItems: 1
          description: API version
        protocol:
          $ref: '#/components/schemas/Protocol'
        dataFormat:
          $ref: '#/components/schemas/DataFormat'
        securityMethods:
          type: array
          items:
            $ref: '#/components/schemas/SecurityMethod'
          minItems: 1
          description: Security methods supported by the AEF
        grantTypes:
          type: array
          items:
            $ref: 'TS29222_CAPIF_Security_API.yaml#/components/schemas/OAuthGrantType'
          minItems: 1
        domainName:
          type: string
          description: Domain to which API belongs to
        interfaceDescriptions:
          type: array
          items:
            $ref: '#/components/schemas/InterfaceDescription'
          minItems: 1
          description: Interface details
        aefLocation:
          $ref: '#/components/schemas/AefLocation'
        serviceKpis:
          $ref: '#/components/schemas/ServiceKpis'
        ueIpRange:
          $ref: '#/components/schemas/IpAddrRange'
      required:
        - aefId
        - versions
      oneOf:
        - required: [domainName]
        - required: [interfaceDescriptions]

    Resource:
      type: object
      description: Represents the API resource data.
      properties:
        resourceName:
          type: string
          description: Resource name
        commType:
          $ref: '#/components/schemas/CommunicationType'
        uri:
          type: string
          description: >
            Relative URI of the API resource, it is set as {apiSpecificSuffixes} part
            of the URI structure as defined in clause 5.2.4 of 3GPP TS 29.122.
        custOpName:
          type: string
          description: >
            it is set as {custOpName} part of the URI structure for a custom operation
            associated with a resource as defined in clause 5.2.4 of 3GPP TS 29.122.
        custOperations:
          type: array
          items:
            $ref: '#/components/schemas/CustomOperation'
          minItems: 1
          description: >
            Custom operations associated with this resource.
        operations:
          type: array
          items:
            $ref: '#/components/schemas/Operation'
          minItems: 1
          description: >
            Supported HTTP methods for the API resource. Only applicable when the
            protocol in AefProfile indicates HTTP.
        description:
          type: string
          description: Text description of the API resource
      required:
        - resourceName
        - commType
        - uri

    CustomOperation:
      type: object
      description: Represents the description of a custom operation.
      properties:
        commType:
          $ref: '#/components/schemas/CommunicationType'
        custOpName:
          type: string
          description: >
            it is set as {custOpName} part of the URI structure for a custom operation
            without resource association as defined in clause 5.2.4 of 3GPP TS 29.122.
        operations:
          type: array
          items:
            $ref: '#/components/schemas/Operation'
          minItems: 1
          description: >
            Supported HTTP methods for the API resource. Only applicable when the
            protocol in AefProfile indicates HTTP.
        description:
          type: string
          description: Text description of the custom operation
      required:
        - commType
        - custOpName

    Version:
      type: object
      description: Represents the API version information.
      properties:
        apiVersion:
          type: string
          description: API major version in URI (e.g. v1)
        expiry:
          $ref: 'TS29122_CommonData.yaml#/components/schemas/DateTime'
        resources:
          type: array
          items:
            $ref: '#/components/schemas/Resource'
          minItems: 1
          description: Resources supported by the API.
        custOperations:
          type: array
          items:
            $ref: '#/components/schemas/CustomOperation'
          minItems: 1
          description: Custom operations without resource association.
      required:
        - apiVersion


    ShareableInformation:
      type: object
      description: >
        Indicates whether the service API and/or the service API category can be shared
        to the list of CAPIF provider domains.
      properties:
        isShareable:
          type: boolean
          description: >
            Indicates whether the service API and/or the service API category can be shared to the
            list of CAPIF provider domain information.
            true indicates that the service API and/or the service API category can be shared to the
            list of CAPIF provider domain information.
            false indicates that the service API and/or the service API category can not be shared
            to the list of CAPIF provider domain information.
        capifProvDoms:
          type: array
          items:
            type: string
          minItems: 1
          description: >
            List of CAPIF provider domains to which the service API information to be shared.
      required:
        - isShareable

    PublishedApiPath:
      type: object
      description: Represents the published API path within the same CAPIF provider domain.
      properties:
        ccfIds:
          type: array
          items:
            type: string
          minItems: 1
          description: A list of CCF identifiers where the service API is already published.

    AefLocation:
      description: >
        Represents the location information (e.g. civic address, GPS coordinates, data center ID)
        where the AEF providing the service API is located.
      type: object
      properties:
        civicAddr:
          $ref: 'TS29572_Nlmf_Location.yaml#/components/schemas/CivicAddress'
        geoArea:
          $ref: 'TS29572_Nlmf_Location.yaml#/components/schemas/GeographicArea'
        dcId:
          type: string
          description: >
            Identifies the data center where the AEF providing the service API is located.

    ServiceAPIDescriptionPatch:
      type: object
      description: >
        Represents the parameters to request the modification of an APF published API resource.
      properties:
        apiStatus:
          $ref: '#/components/schemas/ApiStatus'
        aefProfiles:
          type: array
          items:
            $ref: '#/components/schemas/AefProfile'
          description: AEF profile information, which includes the exposed API details.
          minItems: 1
        description:
          type: string
          description: Text description of the API
        shareableInfo:
          $ref: '#/components/schemas/ShareableInformation'
        serviceAPICategory:
          type: string
          description: The service API category to which the service API belongs to.
        apiSuppFeats:
          $ref: 'TS29571_CommonData.yaml#/components/schemas/SupportedFeatures'
        pubApiPath:
          $ref: '#/components/schemas/PublishedApiPath'
        ccfId:
          type: string
          description: CAPIF core function identifier.

    ApiStatus:
      type: object
      description: >
        Represents the API status.
      properties:
        aefIds:
          type: array
          items:
            type: string
          description: >
            Indicates the list of AEF ID(s) where the API is active.
            If an empty array is provided, it indicates that the API is inactive in all AEF(s). 
      required:
        - aefIds

    ServiceKpis:
      type: object
      description: >
        Represents information about the service characteristics provided by a service API.
      properties:
        maxReqRate:
          $ref: 'TS29571_CommonData.yaml#/components/schemas/Uinteger'
        maxRestime:
          $ref: 'TS29122_CommonData.yaml#/components/schemas/DurationSec'
        availability:
          $ref: 'TS29571_CommonData.yaml#/components/schemas/Uinteger'
        avalComp:
          type: string
          pattern: '^\d+(\.\d+)? (kFLOPS|MFLOPS|GFLOPS|TFLOPS|PFLOPS|EFLOPS|ZFLOPS)$'
          description: >
            The maximum compute resource available in FLOPS for the API Invoker.
        avalGraComp:
          type: string
          pattern: '^\d+(\.\d+)? (kFLOPS|MFLOPS|GFLOPS|TFLOPS|PFLOPS|EFLOPS|ZFLOPS)$'
          description: >
            The maximum graphical compute resource in FLOPS available for the API Invoker.
        avalMem:
          type: string
          pattern: '^\d+(\.\d+)? (KB|MB|GB|TB|PB|EB|ZB|YB)$'
          description: >
            The maximum memory resource available for the API Invoker.
        avalStor:
          type: string
          pattern: '^\d+(\.\d+)? (KB|MB|GB|TB|PB|EB|ZB|YB)$'
          description: >
            The maximum storage resource available for the API Invoker.
        conBand:
          $ref: 'TS29571_CommonData.yaml#/components/schemas/Uinteger'

    IpAddrRange:
      description: Represents the list of public IP ranges
      type: object
      properties:
        ueIpv4AddrRanges:
          type: array
          items:
            $ref: 'TS29571_CommonData.yaml#/components/schemas/Ipv4AddressRange'
          description: Represents the IPv4 Address ranges of the UE(s).
          minItems: 1
        ueIpv6AddrRanges:
          type: array
          items:
            $ref: 'TS29571_CommonData.yaml#/components/schemas/Ipv6AddressRange'
          description: Represents the Ipv6 Address ranges of the UE(s).
          minItems: 1
      anyOf:
        - required: [ueIpv4AddrRanges]
        - required: [ueIpv6AddrRanges]

    Protocol:
      anyOf:
      - type: string
        enum:
          - HTTP_1_1
          - HTTP_2
          - MQTT
          - WEBSOCKET
      - type: string
        description: >
          This string provides forward-compatibility with future
          extensions to the enumeration but is not used to encode
          content defined in the present version of this API.
      description: |
        Indicates a protocol and protocol version used by the API.  
        Possible values are:
        - HTTP_1_1: Indicates that the protocol is HTTP version 1.1.
        - HTTP_2: Indicates that the protocol is HTTP version 2.
        - MQTT: Indicates that the protocol is Message Queuing Telemetry Transport.
        - WEBSOCKET: Indicates that the protocol is Websocket.

    CommunicationType:
      anyOf:
      - type: string
        enum:
          - REQUEST_RESPONSE
          - SUBSCRIBE_NOTIFY
      - type: string
        description: >
          This string provides forward-compatibility with future
          extensions to the enumeration but is not used to encode
          content defined in the present version of this API.
      description: |
        Indicates a communication type of the resource or the custom operation.  
        Possible values are:
        - REQUEST_RESPONSE: The communication is of the type request-response.
        - SUBSCRIBE_NOTIFY: The communication is of the type subscribe-notify.

    DataFormat:
      anyOf:
      - type: string
        enum:
          - JSON
          - XML
          - PROTOBUF3
      - type: string
        description: >
          This string provides forward-compatibility with future
          extensions to the enumeration but is not used to encode
          content defined in the present version of this API.
      description: |
        Indicates a data format.  
        Possible values are:
        - JSON: Indicates that the data format is JSON.
        - XML: Indicates that the data format is Extensible Markup Language.
        - PROTOBUF3: Indicates that the data format is Protocol buffers version 3.

    SecurityMethod:
      anyOf:
      - type: string
        enum:
          - PSK
          - PKI
          - OAUTH
      - type: string
        description: >
          This string provides forward-compatibility with future
          extensions to the enumeration but is not used to encode
          content defined in the present version of this API.
      description: |
        Indicates the security method.  
        Possible values are:
        - PSK: Security method 1 (Using TLS-PSK) as described in 3GPP TS 33.122.
        - PKI: Security method 2 (Using PKI) as described in 3GPP TS 33.122.
        - OAUTH: Security method 3 (TLS with OAuth token) as described in 3GPP TS 33.122.

    Operation:
      anyOf:
      - type: string
        enum:
          - GET
          - POST
          - PUT
          - PATCH
          - DELETE
      - type: string
        description: >
          This string provides forward-compatibility with future
          extensions to the enumeration but is not used to encode
          content defined in the present version of this API.
      description: |
        Indicates an HTTP method.  
        Possible values are:
        - GET: HTTP GET method.
        - POST: HTTP POST method.
        - PUT: HTTP PUT method.
        - PATCH: HTTP PATCH method.
        - DELETE: HTTP DELETE method.