---
title: "Aggregated session cost summary"
method: GET
path: "/api/session-costs/summary"
tags: ["Session Data"]
---

# Aggregated session cost summary

`GET /api/session-costs/summary`

## Query parameters

- `groupBy` 'day' | 'agent' | 'both' | 'user'
- `startDate` string
- `endDate` string
- `agentId` string
- `userId` string

## Response `200`

Cost summary

- object
  - `totals` object, required
    - `totalCostUsd` number, required
    - `totalInputTokens` integer, required
    - `totalOutputTokens` integer, required
    - `totalCacheReadTokens` integer, required
    - `totalCacheWriteTokens` integer, required
    - `totalDurationMs` integer, required
    - `totalSessions` integer, required
    - `avgCostPerSession` number, required
    - `attributedCostUsd` number, required
  - `daily` object[], required
    - `date` string, required
    - `costUsd` number, required
    - `inputTokens` integer, required
    - `outputTokens` integer, required
    - `sessions` integer, required
  - `byAgent` object[], required
    - `agentId` string, required
    - `costUsd` number, required
    - `inputTokens` integer, required
    - `outputTokens` integer, required
    - `sessions` integer, required
    - `durationMs` integer, required
  - `byUser` object[], required
    - `userId` string, nullable, required
    - `costUsd` number, required
    - `inputTokens` integer, required
    - `outputTokens` integer, required
    - `tasks` integer, required
    - `durationMs` integer, required

## Other responses

- `400` — Invalid groupBy

---

[API](https://skmtc.net/desplega-ai/apis/agent-swarm-api.md) · [All operations](https://skmtc.net/desplega-ai/apis/agent-swarm-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/desplega-ai/agent-swarm-api/versions/ef761849166b/schema)