openapi: 3.2.0
info:
  title: Flagsmith SDK API
  version: v1
  description: Flagsmith's Core and SDK APIs. Check out Flagsmith documentation.
  contact:
    email: support@flagsmith.com
  license:
    name: BSD License
    identifier: BSD-3-Clause
tags:
- name: SDK
  description: SDK endpoints for flags, identities, and traits.
paths:
  /api/v1/environment-document/:
    get:
      operationId: sdk_v1_environment_document
      description: 'Retrieve the environment document.

        Used by SDKs in local evaluation mode, and Edge Proxy.'
      tags:
      - SDK
      security:
      - Environment API Key: []
      responses:
        '200':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/V1EnvironmentDocumentResponse'
          description: ''
      summary: Sdk v1 environment document
      x-summary-source: derived
  /api/v1/flags/:
    get:
      operationId: sdk_v1_flags
      description: 'Retrieve the feature flags for an environment.


        ---

        *Note*: when providing the `feature` query argument, this endpoint will

        return either a single object or a 404 (if the feature does not exist) rather

        than a list.


        ---

        *Note*: using this endpoint with an identifier is deprecated.

        Please use `/api/v1/identities/?identifier=` instead.'
      parameters:
      - in: query
        name: feature
        schema:
          type: string
          minLength: 1
        description: Name of the feature to get the state of
      tags:
      - SDK
      security:
      - Environment API Key: []
      responses:
        '200':
          content:
            application/json:
              schema:
                type: array
                items:
                  type: object
                  description: Represents a single flag (feature state) returned by the Flagsmith SDK.
                  properties:
                    feature:
                      type: object
                      description: Represents a Flagsmith feature, defined at project level.
                      properties:
                        id:
                          type: integer
                        name:
                          type: string
                        type:
                          enum:
                          - STANDARD
                          - MULTIVARIATE
                          type: string
                      required:
                      - id
                      - name
                      - type
                    enabled:
                      type: boolean
                    feature_state_value:
                      oneOf:
                      - type: integer
                      - type: boolean
                      - type: string
                      nullable: true
                    variant:
                      type: string
                      nullable: true
                    reason:
                      type: string
                      nullable: true
                    metadata:
                      type: object
                      description: Additional, non-evaluation data about a feature state.
                      properties:
                        experiment:
                          type: object
                          description: Represents the experiment a feature state is part of. Only present while the experiment is running.
                          properties:
                            id:
                              type: integer
                            name:
                              type: string
                            in_experiment:
                              type: boolean
                          required:
                          - id
                          - in_experiment
                          - name
                  required:
                  - enabled
                  - feature
                  - feature_state_value
          description: ''
      summary: Sdk v1 flags
      x-summary-source: derived
  /api/v1/flags/{identifier}:
    get:
      operationId: sdk_v1_flags_2
      description: 'Retrieve the feature flags for an environment.


        ---

        *Note*: when providing the `feature` query argument, this endpoint will

        return either a single object or a 404 (if the feature does not exist) rather

        than a list.


        ---

        *Note*: using this endpoint with an identifier is deprecated.

        Please use `/api/v1/identities/?identifier=` instead.'
      parameters:
      - in: query
        name: feature
        schema:
          type: string
          minLength: 1
        description: Name of the feature to get the state of
      - in: path
        name: identifier
        schema:
          type: string
          pattern: ^[-\w@%.]+$
        required: true
      tags:
      - SDK
      security:
      - Environment API Key: []
      responses:
        '200':
          content:
            application/json:
              schema:
                type: array
                items:
                  type: object
                  description: Represents a single flag (feature state) returned by the Flagsmith SDK.
                  properties:
                    feature:
                      type: object
                      description: Represents a Flagsmith feature, defined at project level.
                      properties:
                        id:
                          type: integer
                        name:
                          type: string
                        type:
                          enum:
                          - STANDARD
                          - MULTIVARIATE
                          type: string
                      required:
                      - id
                      - name
                      - type
                    enabled:
                      type: boolean
                    feature_state_value:
                      oneOf:
                      - type: integer
                      - type: boolean
                      - type: string
                      nullable: true
                    variant:
                      type: string
                      nullable: true
                    reason:
                      type: string
                      nullable: true
                    metadata:
                      type: object
                      description: Additional, non-evaluation data about a feature state.
                      properties:
                        experiment:
                          type: object
                          description: Represents the experiment a feature state is part of. Only present while the experiment is running.
                          properties:
                            id:
                              type: integer
                            name:
                              type: string
                            in_experiment:
                              type: boolean
                          required:
                          - id
                          - in_experiment
                          - name
                  required:
                  - enabled
                  - feature
                  - feature_state_value
          description: ''
      summary: Sdk v1 flags 2
      x-summary-source: derived
  /api/v1/identities/:
    get:
      operationId: sdk_v1_get_identities
      description: Retrieve the flags and traits for an identity.
      parameters:
      - in: query
        name: identifier
        schema:
          type: string
          minLength: 1
        required: true
      - in: query
        name: transient
        schema:
          type: boolean
          default: false
      tags:
      - SDK
      security:
      - Environment API Key: []
      responses:
        '200':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/V1IdentitiesResponse'
          description: ''
      summary: Sdk v1 get identities
      x-summary-source: derived
    post:
      operationId: sdk_v1_post_identities
      description: Identify a user, set their traits, and retrieve their flags.
      tags:
      - SDK
      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/V1IdentitiesRequest'
          application/x-www-form-urlencoded:
            schema:
              $ref: '#/components/schemas/V1IdentitiesRequest'
          multipart/form-data:
            schema:
              $ref: '#/components/schemas/V1IdentitiesRequest'
        required: true
      security:
      - Environment API Key: []
      responses:
        '200':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/V1IdentitiesResponse'
          description: ''
      summary: Sdk v1 post identities
      x-summary-source: derived
components:
  schemas:
    V1IdentitiesResponseExperimentMetadata:
      description: Represents the experiment a feature state is part of. Only present while the experiment is running.
      properties:
        id:
          title: Id
          type: integer
        name:
          title: Name
          type: string
        in_experiment:
          title: In Experiment
          type: boolean
      required:
      - id
      - name
      - in_experiment
      title: ExperimentMetadata
      type: object
    V1EnvironmentDocumentResponseExperimentMetadata:
      description: Represents the experiment a feature state is part of. Only present while the experiment is running.
      properties:
        id:
          title: Id
          type: integer
        name:
          title: Name
          type: string
        in_experiment:
          title: In Experiment
          type: boolean
      required:
      - id
      - name
      - in_experiment
      title: ExperimentMetadata
      type: object
    V1EnvironmentDocumentResponseMultivariateFeatureOption:
      description: Represents a single multivariate feature option in the Flagsmith UI.
      properties:
        value:
          title: Value
          type: string
      required:
      - value
      title: MultivariateFeatureOption
      type: object
    V1IdentitiesResponseFeatureStateMetadata:
      additionalProperties: true
      description: Additional, non-evaluation data about a feature state.
      properties:
        experiment:
          $ref: '#/components/schemas/V1IdentitiesResponseExperimentMetadata'
      title: FeatureStateMetadata
      type: object
    V1EnvironmentDocumentResponseFeatureState:
      description: Used to define the state of a feature for an environment, segment overrides, and identity overrides.
      properties:
        feature:
          $ref: '#/components/schemas/V1EnvironmentDocumentResponseFeature'
        enabled:
          title: Enabled
          type: boolean
        feature_state_value:
          anyOf:
          - type: integer
          - type: boolean
          - type: string
          - type: 'null'
          title: Feature State Value
        featurestate_uuid:
          format: uuid
          title: Featurestate Uuid
          type: string
        feature_segment:
          anyOf:
          - $ref: '#/components/schemas/V1EnvironmentDocumentResponseFeatureSegment'
          - type: 'null'
        multivariate_feature_state_values:
          items:
            $ref: '#/components/schemas/V1EnvironmentDocumentResponseMultivariateFeatureStateValue'
          title: Multivariate Feature State Values
          type: array
        metadata:
          $ref: '#/components/schemas/V1EnvironmentDocumentResponseFeatureStateMetadata'
      required:
      - feature
      - enabled
      - feature_state_value
      - featurestate_uuid
      - feature_segment
      - multivariate_feature_state_values
      title: FeatureState
      type: object
    V1EnvironmentDocumentResponseMultivariateFeatureStateValue:
      description: Represents a multivariate feature state value.
      properties:
        id:
          anyOf:
          - type: integer
          - type: 'null'
          title: Id
        mv_fs_value_uuid:
          anyOf:
          - format: uuid
            type: string
          - type: 'null'
          title: Mv Fs Value Uuid
        percentage_allocation:
          title: Percentage Allocation
          type: number
        multivariate_feature_option:
          $ref: '#/components/schemas/V1EnvironmentDocumentResponseMultivariateFeatureOption'
      required:
      - id
      - mv_fs_value_uuid
      - percentage_allocation
      - multivariate_feature_option
      title: MultivariateFeatureStateValue
      type: object
    V1EnvironmentDocumentResponseFeatureStateMetadata:
      additionalProperties: true
      description: Additional, non-evaluation data about a feature state.
      properties:
        experiment:
          $ref: '#/components/schemas/V1EnvironmentDocumentResponseExperimentMetadata'
      title: FeatureStateMetadata
      type: object
    V1EnvironmentDocumentResponseProject:
      description: Represents a Flagsmith project. For SDKs, this is mainly used to convey segment data.
      properties:
        segments:
          items:
            $ref: '#/components/schemas/V1EnvironmentDocumentResponseSegment'
          title: Segments
          type: array
      required:
      - segments
      title: Project
      type: object
    V1EnvironmentDocumentResponseSegmentConditionOperatorEnum:
      enum:
      - EQUAL
      - GREATER_THAN
      - LESS_THAN
      - LESS_THAN_INCLUSIVE
      - CONTAINS
      - GREATER_THAN_INCLUSIVE
      - NOT_CONTAINS
      - NOT_EQUAL
      - REGEX
      - PERCENTAGE_SPLIT
      - MODULO
      - IS_SET
      - IS_NOT_SET
      - IN
      type: string
    V1EnvironmentDocumentResponseFeatureSegment:
      description: Represents data specific to a segment feature override.
      properties:
        priority:
          anyOf:
          - type: integer
          - type: 'null'
          title: Priority
      required:
      - priority
      title: FeatureSegment
      type: object
    V1IdentitiesRequestTraitInput:
      description: Represents a key-value pair trait provided as input when creating or updating an identity.
      properties:
        trait_key:
          title: Trait Key
          type: string
        trait_value:
          anyOf:
          - type: integer
          - type: number
          - type: boolean
          - type: string
          - type: 'null'
          title: Trait Value
        transient:
          anyOf:
          - type: boolean
          - type: 'null'
          title: Transient
      required:
      - trait_key
      - trait_value
      title: TraitInput
      type: object
    V1EnvironmentDocumentResponseFeature:
      description: Represents a Flagsmith feature, defined at project level.
      properties:
        id:
          title: Id
          type: integer
        name:
          title: Name
          type: string
        type:
          allOf:
          - $ref: '#/components/schemas/TypeD77Enum'
          title: Type
      required:
      - id
      - name
      - type
      title: Feature
      type: object
    V1EnvironmentDocumentResponse:
      description: '`/api/v1/environment-documents/` response.


        Powers Flagsmith SDK''s local evaluation mode.'
      properties:
        api_key:
          title: Api Key
          type: string
        feature_states:
          items:
            $ref: '#/components/schemas/V1EnvironmentDocumentResponseFeatureState'
          title: Feature States
          type: array
        identity_overrides:
          items:
            $ref: '#/components/schemas/V1EnvironmentDocumentResponseIdentityOverride'
          title: Identity Overrides
          type: array
        name:
          title: Name
          type: string
        project:
          $ref: '#/components/schemas/V1EnvironmentDocumentResponseProject'
      required:
      - api_key
      - feature_states
      - identity_overrides
      - name
      - project
      title: V1EnvironmentDocumentResponse
      type: object
    V1IdentitiesResponseV1Flag:
      description: Represents a single flag (feature state) returned by the Flagsmith SDK.
      properties:
        feature:
          $ref: '#/components/schemas/V1IdentitiesResponseFeature'
        enabled:
          title: Enabled
          type: boolean
        feature_state_value:
          anyOf:
          - type: integer
          - type: boolean
          - type: string
          - type: 'null'
          title: Feature State Value
        variant:
          anyOf:
          - type: string
          - type: 'null'
          title: Variant
        reason:
          anyOf:
          - type: string
          - type: 'null'
          title: Reason
        metadata:
          $ref: '#/components/schemas/V1IdentitiesResponseFeatureStateMetadata'
      required:
      - feature
      - enabled
      - feature_state_value
      title: V1Flag
      type: object
    V1EnvironmentDocumentResponseSegmentRule:
      description: Represents a rule within a segment used by Flagsmith engine. Root rules usually contain nested rules.
      properties:
        type:
          allOf:
          - $ref: '#/components/schemas/V1EnvironmentDocumentResponseSegmentRuleTypeEnum'
          title: Type
        rules:
          items:
            $ref: '#/components/schemas/V1EnvironmentDocumentResponseSegmentRule'
          title: Rules
          type: array
        conditions:
          items:
            $ref: '#/components/schemas/V1EnvironmentDocumentResponseSegmentCondition'
          title: Conditions
          type: array
      required:
      - type
      - rules
      - conditions
      title: SegmentRule
      type: object
    V1IdentitiesResponseFeature:
      description: Represents a Flagsmith feature, defined at project level.
      properties:
        id:
          title: Id
          type: integer
        name:
          title: Name
          type: string
        type:
          allOf:
          - $ref: '#/components/schemas/TypeD77Enum'
          title: Type
      required:
      - id
      - name
      - type
      title: Feature
      type: object
    TypeD77Enum:
      enum:
      - STANDARD
      - MULTIVARIATE
      type: string
      description: '* `STANDARD` - STANDARD

        * `MULTIVARIATE` - MULTIVARIATE'
    V1IdentitiesResponseTrait:
      description: Represents a key-value pair associated with an identity.
      properties:
        trait_key:
          title: Trait Key
          type: string
        trait_value:
          anyOf:
          - type: integer
          - type: number
          - type: boolean
          - type: string
          - type: 'null'
          title: Trait Value
      required:
      - trait_key
      - trait_value
      title: Trait
      type: object
    V1EnvironmentDocumentResponseSegment:
      description: Represents a Flagsmith segment. Carries rules and feature overrides.
      properties:
        id:
          title: Id
          type: integer
        name:
          title: Name
          type: string
        rules:
          items:
            $ref: '#/components/schemas/V1EnvironmentDocumentResponseSegmentRule'
          title: Rules
          type: array
        feature_states:
          items:
            $ref: '#/components/schemas/V1EnvironmentDocumentResponseFeatureState'
          title: Feature States
          type: array
      required:
      - id
      - name
      - rules
      title: Segment
      type: object
    V1IdentitiesRequest:
      description: '`/api/v1/identities/` request.


        Used to retrieve flags for an identity and store its traits.'
      properties:
        identifier:
          title: Identifier
          type: string
        traits:
          anyOf:
          - items:
              $ref: '#/components/schemas/V1IdentitiesRequestTraitInput'
            type: array
          - type: 'null'
          title: Traits
        transient:
          anyOf:
          - type: boolean
          - type: 'null'
          title: Transient
      required:
      - identifier
      title: V1IdentitiesRequest
      type: object
    V1EnvironmentDocumentResponseSegmentRuleTypeEnum:
      enum:
      - ALL
      - ANY
      - NONE
      type: string
    V1EnvironmentDocumentResponseSegmentCondition:
      description: Represents a condition within a segment rule used by Flagsmith engine.
      properties:
        operator:
          allOf:
          - $ref: '#/components/schemas/V1EnvironmentDocumentResponseSegmentConditionOperatorEnum'
          title: Operator
        value:
          title: Value
          type: string
        property_:
          title: Property
          type: string
      required:
      - operator
      - value
      - property_
      title: SegmentCondition
      type: object
    V1IdentitiesResponse:
      description: '`/api/v1/identities/` response.


        Represents the identity created or updated, along with its flags.'
      properties:
        identifier:
          title: Identifier
          type: string
        flags:
          items:
            $ref: '#/components/schemas/V1IdentitiesResponseV1Flag'
          title: Flags
          type: array
        traits:
          items:
            $ref: '#/components/schemas/V1IdentitiesResponseTrait'
          title: Traits
          type: array
      required:
      - identifier
      - flags
      - traits
      title: V1IdentitiesResponse
      type: object
    V1EnvironmentDocumentResponseIdentityOverride:
      description: Represents an identity override, defining feature states specific to an identity.
      properties:
        identifier:
          title: Identifier
          type: string
        identity_features:
          items:
            $ref: '#/components/schemas/V1EnvironmentDocumentResponseFeatureState'
          title: Identity Features
          type: array
      required:
      - identifier
      - identity_features
      title: IdentityOverride
      type: object
  securitySchemes:
    Cohort_Sync_Key:
      type: http
      scheme: bearer
      description: For cohort sync endpoints called by an external cohort source, such as Amplitude.
    Cohort_Sync_Key__Basic:
      type: http
      scheme: basic
      description: For cohort sync endpoints called by an external cohort source that can only send Basic credentials, such as Mixpanel. The key is the password; the username is ignored.
    Environment_API_Key:
      type: apiKey
      in: header
      name: X-Environment-Key
      description: For SDK endpoints. <a href='https://docs.flagsmith.com/clients/rest#public-api-endpoints'>Find out more</a>.
    Master_API_Key:
      type: apiKey
      in: header
      name: Authorization
      description: For Management API endpoints. <a href='https://docs.flagsmith.com/integrating-with-flagsmith/flagsmith-api-overview/management-api'>Find out more</a>.
    basicAuth:
      type: http
      scheme: basic
    tokenAuth:
      type: apiKey
      in: header
      name: Authorization
      description: Token-based authentication with required prefix "Token"