DocsAnalyticsDaily Metrics API

Daily Metrics API

GET /api/public/metrics/daily

Via the Daily Metrics API, you can retrieve aggregated daily usage and cost metrics from Langfuse for downstream use, e.g., in analytics, billing, and rate-limiting. The API allows you to filter by application type, user, or tags for tailored data retrieval.

See API reference for more details.

Overview

Returned data includes daily timeseries of:

  • Cost in USD
  • Trace and observation count
  • Break down by model name
    • Usage (e.g. tokens) broken down by input and output usage
    • Cost in USD
    • Trace and observation count

Optional filters:

  • traceName to commonly filter by the application type, depending on how you use name in your traces
  • userId to filter by user
  • tags to filter by tags
  • fromTimestamp
  • toTimestamp

Missing a key metric or filter? Request it via our idea board.

Example

GET /api/public/metrics/daily?traceName=my-copilot&userId=john&limit=2
{
  "data": [
    {
      "date": "2024-02-18",
      "countTraces": 1500,
      "countObservations": 3000,
      "totalCost": 102.19,
      "usage": [
        {
          "model": "llama2",
          "inputUsage": 1200,
          "outputUsage": 1300,
          "totalUsage": 2500,
          "countTraces": 1000,
          "countObservations": 2000,
          "totalCost": 50.19
        },
        {
          "model": "gpt-4",
          "inputUsage": 500,
          "outputUsage": 550,
          "totalUsage": 1050,
          "countTraces": 500,
          "countObservations": 1000,
          "totalCost": 52.0
        }
      ]
    },
    {
      "date": "2024-02-17",
      "countTraces": 1250,
      "countObservations": 2500,
      "totalCost": 250.0,
      "usage": [
        {
          "model": "llama2",
          "inputUsage": 1000,
          "outputUsage": 1100,
          "totalUsage": 2100,
          "countTraces": 1250,
          "countObservations": 2500,
          "totalCost": 250.0
        }
      ]
    }
  ],
  "meta": {
    "page": 1,
    "limit": 2,
    "totalItems": 60,
    "totalPages": 30
  }
}

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