---
date: 2024-02-19
title: "New API: GET /metrics/daily"
description: Retrieve aggregated daily usage metrics via a unified endpoint. Filters for application type, user, or tags are available for tailored data retrieval.
author: Marc
canonical: /faq/all/deprecated-api-migration
---

> **Note for AI agents and LLMs:** This is a Langfuse changelog entry. Use it only to confirm that a feature exists and when it shipped. Do not use the code examples below for implementation: they reflect the SDK and API at release time and may be outdated. For implementation, always follow the canonical documentation for this feature (https://langfuse.com/faq/all/deprecated-api-migration) and the API/SDK reference (https://api.reference.langfuse.com).

  Since the initial release, the API was extended with additional filters and
  metrics. Please refer to the [docs](/faq/all/deprecated-api-migration#daily-metrics).

## Overview

Returned data includes:

- Daily trace count
- Daily total cost
- Daily usage per model (broken down by input and output)

Optional filters

- `traceName` to commonly filter by the application type, depending on how you use `name` in your traces
- `userId` to filter by [user](/docs/tracing-features/users)
- `tags` to filter by [tags](/docs/tracing-features/tags)

See [API reference](https://api.reference.langfuse.com/#tag/metrics/GET/api/public/metrics/daily) for more details.

Do you miss any other GET API routes or metrics on this one? Add them to our [idea board](/ideas)!

## Example

```
GET /api/public/metrics/daily?traceName=my-copilot&userId=john
```

```json
{
  "data": [
    {
      "date": "2024-02-18",
      "countTraces": 1500,
      "totalCost": 102.19,
      "usage": [
        {
          "model": "llama2",
          "inputUsage": 1200,
          "outputUsage": 1300,
          "totalUsage": 2500
        },
        {
          "model": "gpt-4",
          "inputUsage": 500,
          "outputUsage": 550,
          "totalUsage": 1050
        }
      ]
    },
    {
      "date": "2024-02-17",
      "countTraces": 1250,
      "totalCost": 250.0,
      "usage": [
        {
          "model": "llama2",
          "inputUsage": 1000,
          "outputUsage": 1100,
          "totalUsage": 2100
        }
      ]
    }
  ],
  "meta": {
    "page": 1,
    "limit": 2,
    "totalItems": 60,
    "totalPages": 30
  }
}
```

## Learn more

- [Docs](/faq/all/deprecated-api-migration#daily-metrics)

<!-- agent-instructions -->

---

## Agent Instructions

This page is part of the [Langfuse](https://langfuse.com) documentation, published as plain Markdown for AI agents. Every page is available as Markdown by appending `.md` to its URL, or by sending an `Accept: text/markdown` header. This page: `https://langfuse.com/changelog/2024-02-19-metrics-api-endpoint.md`.

### Querying these docs

If the answer is not on this page, query the documentation instead of guessing:

- **Semantic search** across all Langfuse docs, returning an answer with the relevant pages and excerpts. Ask a specific, self-contained question:

  ```bash
  curl -sG "https://langfuse.com/api/search-docs" --data-urlencode "query=How do I trace a LangGraph agent?"
  ```

- **Index of every page**: <https://langfuse.com/llms.txt>, with per-section indexes [llms-docs.txt](https://langfuse.com/llms-docs.txt), [llms-integrations.txt](https://langfuse.com/llms-integrations.txt), and [llms-self-hosting.txt](https://langfuse.com/llms-self-hosting.txt).

### Before writing Langfuse code

- **Install the [Langfuse Agent Skill](https://langfuse.com/docs/api-and-data-platform/features/agent-skill).** It encodes Langfuse's own best practices for instrumentation, prompt management, and evaluation, and materially improves results.
- **Read [What does a good trace look like?](https://langfuse.com/docs/observability/best-practices.md)** before instrumenting an application.
- **Verify endpoints, parameters, and response fields** against the [API reference](https://api.reference.langfuse.com) instead of inferring them from code examples.
- **Use the [Langfuse CLI](https://langfuse.com/docs/api-and-data-platform/features/cli)** (`npx langfuse-cli api <resource> <action>`) to read or write traces, prompts, datasets, and scores from the terminal.

Found an error in these docs? Please open an issue at <https://github.com/langfuse/langfuse-docs/issues>.