---
title: "Whether this workspace can start the Enterprise trial"
method: GET
path: "/billing/trial/eligibility"
tags: ["billing"]
---

# Whether this workspace can start the Enterprise trial

`GET /billing/trial/eligibility`

## Request

- Base URL: `https://api.onplana.com/api`
- URL: `https://api.onplana.com/api/billing/trial/eligibility`
- Auth: one of:
  - HTTP bearer
  - API key in header `Authorization`

Reports the workspace's standing against the one-time Enterprise trial: whether it can start one now, whether one is running, and when a previous one was used. `trialPlanUsedAt` is set once and never cleared, so an org that has had a trial reads as ineligible forever. Readable by any member; only an OWNER can act on it.

## Headers

- `X-Organization-Id` string, required

## Response `200`

Eligibility verdict, the active trial window, and the trial length in days

## Other responses

- `400`: Validation error
- `401`: Unauthorized - missing or invalid JWT
- `404`: Organization not found

---

[API](https://skmtc.dev/onplana/apis/onplana-api.md) · [All operations](https://skmtc.dev/onplana/apis/onplana-api/llms.txt) · [OpenAPI document](https://skmtc.dev/onplana/apis/onplana-api/revisions/c3d6c89e9dc8?raw)
