---
title: "Get Billing Spend Series"
method: GET
path: "/api/v1/billing/usage/spend"
tags: ["billing"]
---

# Get Billing Spend Series

`GET /api/v1/billing/usage/spend`

## Query parameters

- `days` integer

## Response `200`

Successful Response

- BillingSpendPoint[]
  - `day` string, required
  - `cents` number, required

## Changes

- **2026-09-30** `9182aecc931a` — 1 info
  - endpoint added

[Change history](https://skmtc.dev/trajectory/apis/trajectory-api/changes/api/v1/billing/usage/spend/get.md)

---

[API](https://skmtc.dev/trajectory/apis/trajectory-api.md) · [All operations](https://skmtc.dev/trajectory/apis/trajectory-api/llms.txt) · [OpenAPI document](https://skmtc.dev/trajectory/apis/trajectory-api/revisions/9182aecc931a?raw)