---
title: "Get current-month billable usage"
method: GET
path: "/v1/usage"
tags: ["Usage & SLA"]
---

# Get current-month billable usage

`GET /v1/usage`

## Request

- Base URL: `https://api.nashboard.ai`
- URL: `https://api.nashboard.ai/v1/usage`
- Auth: one of:
  - HTTP bearer
  - API key in header `X-API-Key`

Required scope: `usage:read`. Returns the billable call count for the current calendar month (sandbox/is_test and 5xx failures excluded). Quota is null for unlimited plans.

## Headers

- `X-Nashboard-Version` '2026-06-13'

## Response `200`

Current-month usage summary.

- UsageResponse
  - `period_start` string, date-time, required
  - `period_end` string, date-time, required
  - `plan` string, required: Tenant plan tier (e.g. free, starter, growth, enterprise).
  - `call_count` integer, required: Billable API calls in the current calendar month.
  - `quota` integer, nullable, required: Monthly call quota; null for unlimited plans.
  - `quota_remaining` integer, nullable, required: Remaining quota; null for unlimited plans.

## Other responses

- `400`: Bad request (invalid JSON, invalid ID, invalid cursor, etc.)
- `401`: Missing, malformed, or invalid API key.
- `403`: Insufficient scope or scope escalation attempt.
- `404`: Resource not found.
- `409`: Conflict (e.g. email already taken).
- `413`: Request body too large.
- `415`: Unsupported media type.
- `422`: Request body failed schema validation.
- `429`: Rate limited, quota exceeded, or DP budget exhausted.
- `500`: Internal server error.
- `502`: Upstream dependency error (e.g. receipt image storage unavailable — code storage_failure).

---

[API](https://skmtc.dev/nashboard/apis/nashboard-b2b-api.md) · [All operations](https://skmtc.dev/nashboard/apis/nashboard-b2b-api/llms.txt) · [OpenAPI document](https://skmtc.dev/nashboard/apis/nashboard-b2b-api/revisions/a51f5ab22ec5?raw)