Langfuse LegacyScoreV1 API

openapi: 3.0.1
info:
  title: langfuse AnnotationQueues LegacyScoreV1 API
  version: "1.0"
  description: '## Authentication


    Authenticate with the API using [Basic Auth](https://en.wikipedia.org/wiki/Basic_access_authentication), get API keys in the project settings:


    - username: Langfuse Public Key

    - password: Langfuse Secret Key


    ## Exports


    - OpenAPI spec: https://cloud.langfuse.com/generated/api/openapi.yml'
tags:
- name: LegacyScoreV1
paths:
  /api/public/scores:
    post:
      description: Create a score (supports both trace and session scores)
      operationId: legacy_scoreV1_create
      tags:
      - LegacyScoreV1
      parameters: []
      responses:
        '200':
          description: ''
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/legacyCreateScoreResponse'
        '400':
          description: ''
          content:
            application/json:
              schema: {}
        '401':
          description: ''
          content:
            application/json:
              schema: {}
        '403':
          description: ''
          content:
            application/json:
              schema: {}
        '404':
          description: ''
          content:
            application/json:
              schema: {}
        '405':
          description: ''
          content:
            application/json:
              schema: {}
      security:
      - BasicAuth: []
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/legacyCreateScoreRequest'
  /api/public/scores/{scoreId}:
    delete:
      description: Delete a score (supports both trace and session scores)
      operationId: legacy_scoreV1_delete
      tags:
      - LegacyScoreV1
      parameters:
      - name: scoreId
        in: path
        description: The unique langfuse identifier of a score
        required: true
        schema:
          type: string
      responses:
        '204':
          description: ''
        '400':
          description: ''
          content:
            application/json:
              schema: {}
        '401':
          description: ''
          content:
            application/json:
              schema: {}
        '403':
          description: ''
          content:
            application/json:
              schema: {}
        '404':
          description: ''
          content:
            application/json:
              schema: {}
        '405':
          description: ''
          content:
            application/json:
              schema: {}
      security:
      - BasicAuth: []
components:
  schemas:
    CreateScoreValue:
      title: CreateScoreValue
      oneOf:
      - type: number
        format: double
      - type: string
      description: The value of the score. Must be passed as string for categorical and text scores, and numeric for boolean and numeric scores
    legacyCreateScoreRequest:
      title: legacyCreateScoreRequest
      type: object
      properties:
        id:
          type: string
          nullable: true
        traceId:
          type: string
          nullable: true
        sessionId:
          type: string
          nullable: true
        observationId:
          type: string
          nullable: true
        datasetRunId:
          type: string
          nullable: true
        name:
          type: string
          example: novelty
        value:
          $ref: '#/components/schemas/CreateScoreValue'
          description: The value of the score. Must be passed as string for categorical and text scores, and numeric for boolean and numeric scores. Boolean score values must equal either 1 or 0 (true or false). Text score values must be between 1 and 500 characters.
        comment:
          type: string
          nullable: true
        metadata:
          type: object
          additionalProperties: true
          nullable: true
        environment:
          type: string
          nullable: true
          description: The environment of the score. Can be any lowercase alphanumeric string with hyphens and underscores that does not start with 'langfuse'.
        queueId:
          type: string
          nullable: true
          description: The annotation queue referenced by the score. Indicates if score was initially created while processing annotation queue.
        dataType:
          $ref: '#/components/schemas/ScoreDataType'
          nullable: true
          description: The data type of the score. When passing a configId this field is inferred. Otherwise, this field must be passed or will default to numeric.
        configId:
          type: string
          nullable: true
          description: Reference a score config on a score. The unique langfuse identifier of a score config. When passing this field, the dataType and stringValue fields are automatically populated.
        source:
          $ref: '#/components/schemas/legacyCreateScoreSource'
          nullable: true
          description: The source of the score. Defaults to API. Set to ANNOTATION to prefill scores (e.g. from an LLM) for a human reviewer to verify in an annotation queue. When source is ANNOTATION, a configId is required unless dataType is CORRECTION. EVAL is reserved for internal evaluator outputs and is not accepted on this endpoint.
      required:
      - name
      - value
    legacyCreateScoreSource:
      title: legacyCreateScoreSource
      type: string
      enum:
      - API
      - ANNOTATION
      description: 'Source values accepted when creating a score via the public REST API.

        EVAL is reserved for internal evaluator outputs and is intentionally not

        exposed here — use commons.ScoreSource when reading scores.'
    legacyCreateScoreResponse:
      title: legacyCreateScoreResponse
      type: object
      properties:
        id:
          type: string
          description: The id of the created object in Langfuse
      required:
      - id
    ScoreDataType:
      title: ScoreDataType
      type: string
      enum:
      - NUMERIC
      - BOOLEAN
      - CATEGORICAL
      - CORRECTION
      - TEXT
  securitySchemes:
    BasicAuth:
      type: http
      scheme: basic