Langfuse LegacyMetricsV1 API

openapi: 3.0.1
info:
  title: langfuse AnnotationQueues LegacyMetricsV1 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: LegacyMetricsV1
paths:
  /api/public/metrics:
    get:
      description: 'Get metrics from the Langfuse project using a query object.


        Consider using the [v2 metrics endpoint](/api-reference#tag/metricsv2/GET/api/public/v2/metrics) for better performance.


        For more details, see the [Metrics API documentation](https://langfuse.com/docs/metrics/features/metrics-api).'
      operationId: legacy_metricsV1_metrics
      tags:
      - LegacyMetricsV1
      parameters:
      - name: query
        in: query
        description: "JSON string containing the query parameters with the following structure:\n```json\n{\n  \"view\": string,           // Required. One of \"traces\", \"observations\", \"scores-numeric\", \"scores-categorical\"\n  \"dimensions\": [           // Optional. Default: []\n    {\n      \"field\": string       // Field to group by, e.g. \"name\", \"userId\", \"sessionId\"\n    }\n  ],\n  \"metrics\": [              // Required. At least one metric must be provided\n    {\n      \"measure\": string,    // What to measure, e.g. \"count\", \"latency\", \"value\"\n      \"aggregation\": string // How to aggregate, e.g. \"count\", \"sum\", \"avg\", \"p95\", \"histogram\"\n    }\n  ],\n  \"filters\": [              // Optional. Default: []\n    {\n      \"column\": string,     // Column to filter on\n      \"operator\": string,   // Operator, e.g. \"=\", \">\", \"<\", \"contains\"\n      \"value\": any,         // Value to compare against\n      \"type\": string,       // Data type, e.g. \"string\", \"number\", \"stringObject\"\n      \"key\": string         // Required only when filtering on metadata\n    }\n  ],\n  \"timeDimension\": {        // Optional. Default: null. If provided, results will be grouped by time\n    \"granularity\": string   // One of \"minute\", \"hour\", \"day\", \"week\", \"month\", \"auto\"\n  },\n  \"fromTimestamp\": string,  // Required. ISO datetime string for start of time range\n  \"toTimestamp\": string,    // Required. ISO datetime string for end of time range\n  \"orderBy\": [              // Optional. Default: null\n    {\n      \"field\": string,      // Field to order by\n      \"direction\": string   // \"asc\" or \"desc\"\n    }\n  ],\n  \"config\": {               // Optional. Query-specific configuration\n    \"bins\": number,         // Optional. Number of bins for histogram (1-100), default: 10\n    \"row_limit\": number     // Optional. Row limit for results (1-1000)\n  }\n}\n```"
        required: true
        schema:
          type: string
      responses:
        '200':
          description: ''
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/legacyMetricsResponse'
        '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:
    legacyMetricsResponse:
      title: legacyMetricsResponse
      type: object
      properties:
        data:
          type: array
          items:
            type: object
            additionalProperties: true
          description: 'The metrics data. Each item in the list contains the metric values and dimensions requested in the query.

            Format varies based on the query parameters.

            Histograms will return an array with [lower, upper, height] tuples.'
      required:
      - data
  securitySchemes:
    BasicAuth:
      type: http
      scheme: basic