DevCycle Variations API

openapi: 3.1.0
info:
  title: DevCycle Bucketing Audiences Variations API
  description: Documents the DevCycle Bucketing API which provides an API interface to User Bucketing and for Server SDKs configured to use Cloud Bucketing.
  version: 1.3.0
servers:
- url: https://bucketing-api.devcycle.com/
tags:
- name: Variations
paths:
  /v1/projects/{project}/features/{feature}/variations:
    post:
      operationId: VariationsController_create
      summary: Create a Feature Variation
      description: Create a new variation within a Feature
      parameters:
      - name: project
        required: true
        in: path
        description: A Project key or ID
        schema:
          type: string
      - name: feature
        required: true
        in: path
        description: A Feature key or ID
        schema:
          type: string
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/FeatureVariationDto'
      responses:
        '201':
          description: ''
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Feature'
        '400':
          description: ''
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/BadRequestErrorResponse'
        '401':
          description: ''
        '403':
          description: ''
        '404':
          description: ''
        '409':
          description: ''
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ConflictErrorResponse'
        '412':
          description: ''
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/PreconditionFailedErrorResponse'
      tags:
      - Variations
    get:
      operationId: VariationsController_findAll
      summary: List Feature Variations
      description: Get a list of variations for a feature
      parameters:
      - name: feature
        required: true
        in: path
        description: A Feature key or ID
        schema:
          type: string
      - name: project
        required: true
        in: path
        description: A Project key or ID
        schema:
          type: string
      responses:
        '200':
          description: ''
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/Variation'
        '401':
          description: ''
        '404':
          description: ''
      tags:
      - Variations
  /v1/projects/{project}/features/{feature}/variations/{key}:
    get:
      operationId: VariationsController_findOne
      summary: Get a Feature Variation
      description: Get a variation by ID or key
      parameters:
      - name: key
        required: true
        in: path
        description: A Variation key or ID
        schema:
          type: string
      - name: feature
        required: true
        in: path
        description: A Feature key or ID
        schema:
          type: string
      - name: project
        required: true
        in: path
        description: A Project key or ID
        schema:
          type: string
      responses:
        '200':
          description: ''
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Variation'
        '401':
          description: ''
        '404':
          description: ''
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/NotFoundErrorResponse'
      tags:
      - Variations
    patch:
      operationId: VariationsController_update
      summary: Update a Feature Variation
      description: Update a variation by ID or key
      parameters:
      - name: key
        required: true
        in: path
        description: A Feature key or ID
        schema:
          type: string
      - name: feature
        required: true
        in: path
        description: A Feature key or ID
        schema:
          type: string
      - name: project
        required: true
        in: path
        description: A Project key or ID
        schema:
          type: string
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/UpdateFeatureVariationDto'
      responses:
        '200':
          description: ''
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Feature'
        '400':
          description: ''
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/BadRequestErrorResponse'
        '401':
          description: ''
        '403':
          description: ''
        '404':
          description: ''
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/NotFoundErrorResponse'
        '409':
          description: ''
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ConflictErrorResponse'
      tags:
      - Variations
components:
  schemas:
    AudienceOperatorWithAudienceMatchFilter:
      type: object
      properties:
        filters:
          type: array
          description: Filters to apply using the "operator" operation
          items:
            anyOf:
            - $ref: '#/components/schemas/AllFilter'
            - $ref: '#/components/schemas/UserFilter'
            - $ref: '#/components/schemas/UserCountryFilter'
            - $ref: '#/components/schemas/UserAppVersionFilter'
            - $ref: '#/components/schemas/UserPlatformVersionFilter'
            - $ref: '#/components/schemas/UserCustomFilter'
            - $ref: '#/components/schemas/AudienceMatchFilter'
        operator:
          description: Operator type if this object represents an operator, and not a filter
          enum:
          - and
          - or
          type: string
      required:
      - filters
      - operator
    VariableValidationEntity:
      type: object
      properties:
        schemaType:
          type: object
        enumValues:
          type: object
        regexPattern:
          type: string
        jsonSchema:
          type: string
        description:
          type: string
        exampleValue:
          type: object
      required:
      - schemaType
      - description
      - exampleValue
    FeatureSummary:
      type: object
      properties:
        maintainers:
          description: Auth0 maintainers of this feature
          type: array
          items:
            type: string
        links:
          type: array
          items:
            $ref: '#/components/schemas/Link'
        markdown:
          type: string
      required:
      - maintainers
      - links
      - markdown
    FeatureSettings:
      type: object
      properties:
        publicName:
          type: string
          maxLength: 100
          minLength: 1
        publicDescription:
          type: string
          maxLength: 1000
        optInEnabled:
          type: boolean
      required:
      - publicName
      - publicDescription
      - optInEnabled
    Variable:
      type: object
      properties:
        name:
          type: string
          description: Variable name
          example: Show New Dashboard
          maxLength: 100
          minLength: 1
        description:
          type: string
          description: A description of the Variable
          example: A boolean variable that will toggle the new dashboard feature
          maxLength: 1000
        key:
          type: string
          description: 'Unique Variable identifier, can be used in the SDK / API to reference by key rather then ID.

            Must only contain lower-case characters and `_`, `-` or `.`.'
          example: show-new-dashboard
          minLength: 1
          maxLength: 100
          pattern: ^[a-z0-9-_.]+$
        _id:
          type: string
          description: A unique Variable ID
          example: 61450f3daec96f5cf4a49946
        _project:
          type: string
          description: The ID of the Project this Variable belongs to
        _feature:
          type: string
          description: The ID of the Feature this Variable belongs to
          example: 61450f3daec96f5cf4a49947
        type:
          description: The type of Variable. Must be one of [String | Boolean | Number | JSON]
          example: Boolean
          enum:
          - String
          - Boolean
          - Number
          - JSON
          type: string
        status:
          description: The status of a Variable. Must be one of [active | archived]
          example: active
          enum:
          - active
          - archived
          type: string
        source:
          description: The system that was used for the creation of the Variable.
          example: api
          enum:
          - api
          - dashboard
          - importer
          - github.code_usages
          - github.pr_insights
          - gitlab.code_usages
          - gitlab.pr_insights
          - bitbucket.code_usages
          - bitbucket.pr_insights
          - terraform
          - cli
          - slack
          - mcp
          type: string
        _createdBy:
          type: string
          description: ID of the User who created the Variable.
        createdAt:
          format: date-time
          type: string
          description: The date the Variable was created
        updatedAt:
          format: date-time
          type: string
          description: The date the Variable was last updated
        validationSchema:
          description: Validation schema for variable values
          allOf:
          - $ref: '#/components/schemas/VariableValidationEntity'
        persistent:
          type: boolean
          description: Boolean indicating if the variable is intended to be long-lived within a feature
        tags:
          description: Tags to organize Variables on the dashboard
          example:
          - Dashboard
          - QA
          type: array
          items:
            type: string
      required:
      - key
      - _id
      - _project
      - type
      - status
      - source
      - createdAt
      - updatedAt
    UserCustomFilter:
      type: object
      properties:
        comparator:
          description: Comparator to use
          example: '>='
          enum:
          - '='
          - '!='
          - '>'
          - '>='
          - <
          - <=
          - exist
          - '!exist'
          - contain
          - '!contain'
          - startWith
          - '!startWith'
          - endWith
          - '!endWith'
          type: string
        dataKey:
          type: string
          description: Data Key used for custom data
          example: my_custom_prop
          minLength: 1
        dataKeyType:
          description: Data Key Type used for custom data
          example: Number
          enum:
          - String
          - Boolean
          - Number
          type: string
        values:
          type: object
          description: An array of values is required for all filters except when the comparator is 'exist' or '!exist'
          example:
          - 0
        type:
          type: string
          description: Filter type of this audience
          example: user
          default: user
          enum:
          - user
        subType:
          type: string
          description: Sub type of this filter
          example: customData
          default: customData
          enum:
          - customData
      required:
      - comparator
      - dataKey
      - dataKeyType
      - type
      - subType
    NotFoundErrorResponse:
      type: object
      properties:
        statusCode:
          type: number
          description: Response status code
          example: 404
        message:
          type: object
          description: Error details
          example: Item with key 'key-123' not found
        error:
          type: string
          description: Error type
          example: Not Found
      required:
      - statusCode
      - message
      - error
    ConflictErrorResponse:
      type: object
      properties:
        statusCode:
          type: number
          description: Response status code
          example: 409
        message:
          type: object
          description: Error details
          example: Duplicate key 'key-123'
        error:
          type: string
          description: Error type
          example: Conflict
        errorType:
          type: string
          example: ERR_DUPE_FEATURE_KEY
      required:
      - statusCode
      - message
      - error
      - errorType
    BadRequestErrorResponse:
      type: object
      properties:
        statusCode:
          type: number
          description: Response status code
          example: 400
        message:
          type: object
          description: Error details
          example:
          - key should not be empty
        error:
          type: string
          description: Error type
          example: Bad Request
      required:
      - statusCode
      - message
      - error
    Link:
      type: object
      properties:
        url:
          type: string
        title:
          type: string
      required:
      - url
      - title
    FeatureSDKVisibility:
      type: object
      properties:
        mobile:
          type: boolean
        client:
          type: boolean
        server:
          type: boolean
      required:
      - mobile
      - client
      - server
    TargetAudience:
      type: object
      properties:
        name:
          type: string
          description: Audience display name, must be set for project-level audiences.
          example: Android Users
          maxLength: 100
          minLength: 1
        filters:
          description: Audience filters, describing logic for segmenting users
          allOf:
          - $ref: '#/components/schemas/AudienceOperatorWithAudienceMatchFilter'
      required:
      - filters
    UserPlatformVersionFilter:
      type: object
      properties:
        comparator:
          description: Comparator to use
          example: '>'
          enum:
          - '='
          - '!='
          - '>'
          - '>='
          - <
          - <=
          - exist
          - '!exist'
          type: string
        values:
          description: An array of values is required for all filters except when the comparator is 'exist' or '!exist'
          example:
          - 1.0.2
          type: array
          items:
            type: string
        type:
          type: string
          description: Filter type of this audience
          example: user
          default: user
          enum:
          - user
        subType:
          type: string
          description: Sub type of this filter
          example: appVersion
          default: appVersion
          enum:
          - appVersion
      required:
      - comparator
      - type
      - subType
    FeatureCustomStatus:
      type: object
      properties:
        _status:
          type: string
          description: Custom status ID reference
        updatedAt:
          format: date-time
          type: string
          description: Timestamp when the custom status was last updated
    FeatureStaleness:
      type: object
      properties: {}
    UserCountryFilter:
      type: object
      properties:
        subType:
          description: Sub type of this filter
          example: country
          enum:
          - country
          type: string
          default: country
        comparator:
          description: Comparator to use
          example: '!='
          enum:
          - '='
          - '!='
          - exist
          - '!exist'
          - contain
          - '!contain'
          - startWith
          - '!startWith'
          - endWith
          - '!endWith'
          type: string
        values:
          description: An array of values is required for all filters except when the comparator is 'exist' or '!exist'
          example:
          - CA
          - US
          type: array
          items:
            type: string
        type:
          type: string
          description: Filter type of this audience
          example: user
          default: user
          enum:
          - user
      required:
      - subType
      - comparator
      - type
    UserFilter:
      type: object
      properties:
        subType:
          description: Sub type of this filter
          example: email
          enum:
          - user_id
          - email
          - platform
          - deviceModel
          type: string
        comparator:
          description: Comparator to use
          example: '!='
          enum:
          - '='
          - '!='
          - exist
          - '!exist'
          - contain
          - '!contain'
          - startWith
          - '!startWith'
          - endWith
          - '!endWith'
          type: string
        values:
          description: An array of values is required for all filters except when the comparator is 'exist' or '!exist'
          example:
          - baduser@email.com
          type: array
          items:
            type: string
        type:
          type: string
          description: Filter type of this audience
          example: user
          default: user
          enum:
          - user
      required:
      - subType
      - comparator
      - type
    Target:
      type: object
      properties:
        _id:
          type: string
          description: A unique Target ID
          example: 61450f3daec96f5cf4a49946
        name:
          type: string
          description: Target name
          example: Feature Enabled
        audience:
          description: Audience model describing target segmentation.
          allOf:
          - $ref: '#/components/schemas/TargetAudience'
        rollout:
          description: Rollout sub-document describing how a Target's audience is rolled out
          allOf:
          - $ref: '#/components/schemas/Rollout'
        distribution:
          description: Specifies variation distribution percentages for features
          type: array
          items:
            $ref: '#/components/schemas/TargetDistribution'
        bucketingKey:
          type: string
          description: String to bucket users into a specific variation
          example: '''organization_id'
      required:
      - _id
      - audience
      - distribution
    Rollout:
      type: object
      properties:
        startPercentage:
          type: number
          description: Rollout start percentage
          minimum: 0
          maximum: 1
        type:
          type: string
          description: Type of rollout
          enum:
          - schedule
          - gradual
          - stepped
        startDate:
          format: date-time
          type: string
          description: Date to start rollout
        stages:
          description: Stages of rollout
          type: array
          items:
            $ref: '#/components/schemas/RolloutStage'
      required:
      - type
      - startDate
    FeatureVariationDto:
      type: object
      properties:
        key:
          type: string
          description: 'Unique key by Feature, can be used in the SDK / API to reference by ''key'' rather than _id.

            Must only contain lower-case characters and `_`, `-` or `.`.'
          example: variation-1
          minLength: 1
          maxLength: 100
          pattern: ^[a-z0-9-_.]+$
        name:
          type: string
          description: Variation display name.
          example: User's with dashboard access
          maxLength: 100
          minLength: 1
        variables:
          type: object
          description: A key-value map of variables to their value for this variation
          additionalProperties:
            anyOf:
            - type: string
            - type: number
            - type: boolean
            - type: array
            - type: object
          example:
            show-new-dashboard: true
            string-var: hello world
            bool-var: true
            num-var: 99
            json-var:
              foo: bar
      required:
      - key
      - name
    FeatureConfig:
      type: object
      properties:
        _feature:
          type: string
          description: ID of the Feature owning the Configuration
          example: 61450f3daec96f5cf4a49946
        _environment:
          type: string
          description: ID of the Environment owning the Configuration
          example: 61450f3daec96f5cf4a49946
        _createdBy:
          type: string
          description: User who created the Feature Configuration
        status:
          description: Status of the Feature Configuration
          enum:
          - active
          - inactive
          type: string
        startedAt:
          format: date-time
          type: string
          description: Date the Feature Configuration was started
        updatedAt:
          format: date-time
          type: string
          description: The date the Feature Configuration was last updated
        targets:
          description: The targets to evaluate what variation a user should be delivered
          type: array
          items:
            $ref: '#/components/schemas/Target'
        readonly:
          type: boolean
          description: Controls whether the feature configuration is editable for a given user
        hasStaticConfig:
          type: boolean
          description: 'Flag to indicate if the Feature owning the configuration has been marked as complete.

            If true, the user targeting rules are ignored and the static variation is always used.'
      required:
      - _feature
      - _environment
      - status
      - updatedAt
      - targets
      - readonly
      - hasStaticConfig
    TargetDistribution:
      type: object
      properties:
        percentage:
          type: number
          description: Distribution percentage for the variation
          example: 0.0005
          minimum: 0
          maximum: 1
        _variation:
          type: string
          description: Variation ID or key from `feature.variations`
          example: variation-1
      required:
      - percentage
      - _variation
    AuditLogEntity:
      type: object
      properties:
        date:
          format: date-time
          type: string
        a0_user:
          type: string
        changes:
          type: array
          items:
            type: object
      required:
      - date
      - a0_user
      - changes
    AllFilter:
      type: object
      properties:
        type:
          type: string
          description: Filter type of this audience
          default: all
          enum:
          - all
      required:
      - type
    UpdateFeatureVariationDto:
      type: object
      properties:
        key:
          type: string
          description: 'Unique key by Feature, can be used in the SDK / API to reference by ''key'' rather than _id.

            Must only contain lower-case characters and `_`, `-` or `.`.'
          example: variation-1
          minLength: 1
          maxLength: 100
          pattern: ^[a-z0-9-_.]+$
        name:
          type: string
          description: Variation display name.
          example: User's with dashboard access
          maxLength: 100
          minLength: 1
        variables:
          type: object
          description: A key-value map of variables to their value for this variation
          additionalProperties:
            anyOf:
            - type: string
            - type: number
            - type: boolean
            - type: array
            - type: object
          example:
            show-new-dashboard: true
            string-var: hello world
            bool-var: true
            num-var: 99
            json-var:
              foo: bar
        _id:
          type: string
    UserAppVersionFilter:
      type: object
      properties:
        comparator:
          description: Comparator to use
          example: '>'
          enum:
          - '='
          - '!='
          - '>'
          - '>='
          - <
          - <=
          - exist
          - '!exist'
          type: string
        values:
          description: An array of values is required for all filters except when the comparator is 'exist' or '!exist'
          example:
          - 1.0.2
          type: array
          items:
            type: string
        type:
          type: string
          description: Filter type of this audience
          example: user
          default: user
          enum:
          - user
        subType:
          type: string
          description: Sub type of this filter
          example: appVersion
          default: appVersion
          enum:
          - appVersion
      required:
      - comparator
      - type
      - subType
    PreconditionFailedErrorResponse:
      type: object
      properties:
        statusCode:
          type: number
          description: Response status code
          example: 412
        message:
          type: object
          description: Error details
          example: Variable does not belong to Feature
        error:
          type: string
          description: Error type
          example: Precondition Failed
      required:
      - statusCode
      - message
      - error
    Feature:
      type: object
      properties:
        _id:
          type: string
          description: A unique Feature ID
          example: 61450f3daec96f5cf4a49946
        _project:
          type: string
          description: The Project owning the Feature
        source:
          description: Source that created the Feature
          enum:
          - api
          - dashboard
          - importer
          - github.code_usages
          - github.pr_insights
          - gitlab.code_usages
          - gitlab.pr_insights
          - bitbucket.code_usages
          - bitbucket.pr_insights
          - terraform
          - cli
          - slack
          - mcp
          type: string
        status:
          description: Status of the Feature
          enum:
          - active
          - complete
          - archived
          type: string
        type:
          description: The Feature type
          enum:
          - release
          - experiment
          - permission
          - ops
          type: string
        name:
          type: string
          description: Name of the Feature
          example: New Dashboard
        key:
          type: string
          description: 'Unique key by Project, can be used in the SDK / API to reference by ''key'' rather than _id.

            Must only contain lower-case characters and `_`, `-` or `.`.'
          example: new-dash
        description:
          type: string
          description: Feature description.
          example: New client-facing dashboard.
        _createdBy:
          type: string
          description: ID of the User who created the Feature
        createdAt:
          format: date-time
          type: string
          description: The date the Feature was created
        updatedAt:
          format: date-time
          type: string
          description: The date the Feature was last updated
        prodTargetingUpdatedAt:
          format: date-time
          type: string
          description: The date the Feature had an update that impacted production targeting
        variations:
          description: Variation configurations to be used by feature configurations.
          type: array
          items:
            $ref: '#/components/schemas/Variation'
        controlVariation:
          type: string
          description: The key of the variation that is used as the control variation for Metrics
        staticVariation:
          type: string
          description: The key of the variation that is set when the Feature's status is set to complete
        variables:
          description: Variable definitions to be referenced in variations
          type: array
          items:
            $ref: '#/components/schemas/Variable'
        tags:
          description: Tags to organize Features on the dashboard
          example:
          - Dashboard
          - QA
          type: array
          items:
            type: string
        ldLink:
          type: string
          description: A link to the feature on LaunchDarkly if it has importedByLD type
        readonly:
          type: boolean
          description: Controls whether the feature is editable for a given user
        settings:
          description: Defines feature-level settings
          allOf:
          - $ref: '#/components/schemas/FeatureSettings'
        sdkVisibility:
          description: SDK Type visibility settings to filter features by platform
          allOf:
          - $ref: '#/components/schemas/FeatureSDKVisibility'
        configurations:
          description: An array of targeting configurations for the associated environments
          type: array
          items:
            $ref: '#/components/schemas/FeatureConfig'
        latestUpdate:
          description: 'Most recent audit log entry for this feature

            Only included in response if includeLatestUpdate query param is true'
          allOf:
          - $ref: '#/components/schemas/AuditLogEntity'
        changeRequests:
          description: Pending change requests for this Feature
          type: array
          items:
            type: object
        staleness:
          description: The staleness of the feature
          allOf:
          - $ref: '#/components/schemas/FeatureStaleness'
        customStatus:
          description: Custom status reference for this feature
          allOf:
          - $ref: '#/components/schemas/FeatureCustomStatus'
        summary:
          description: Summary details for dashboard
          allOf:
          - $ref: '#/components/schemas/FeatureSummary'
      required:
      - _id
      - _project
      - source
      - status
      - name
      - key
      - createdAt
      - updatedAt
      - controlVariation
      - readonly
      - configurations
      - summary
    Variation:
      type: object
      properties:
        key:
          type: string
          description: 'Unique key by Feature, can be used in the SDK / API to reference by ''key'' rather than _id.

            Must only contain lower-case characters and `_`, `-` or `.`.'
          example: variation-1
          minLength: 1
          maxLength: 100
          pattern: ^[a-z0-9-_.]+$
        name:
          type: string
          description: Variation display name.
          example: User's with dashboard access
          maxLength: 100
          minLength: 1
        variables:
          type: object
          description: A key-value map of variables to their value for this variation
          additionalProperties:
            anyOf:
            - type: string
            - type: number
            - type: boolean
            - type: array
            - type: object
          example:
            show-new-dashboard: true
            string-var: hello world
            bool-var: true
            num-var: 99
            json-var:
              foo: bar
        _id:
          type: string
          description: A unique Variation ID
          example: 61450f3daec96f5cf4a49946
      required:
      - key
      - name
      - _id
    AudienceMatchFilter:
      type: object
      properties:
        type:
          type: string
          default: audienceMatch
          enum:
          - audienceMatch
        comparator:
          enum:
          - '='
          - '!='
          type: string
        _audiences:
          type: array
          items:
            type: string
      required:
      - type
    RolloutStage:
      type: object
      properties:
        percentage:
          type: number
          description: Target percentage to reach by the step date
          minimum: 0
          maximum: 1
        type:
          type: string
          description: Defines the transition into this percentage level
          enum:
          - linear
          - discrete
        date:
          format: 

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# Full source: https://raw.githubusercontent.com/api-evangelist/devcycle/refs/heads/main/openapi/devcycle-variations-api-openapi.yml