---
title: "Start the Team subscription (not currently offered)"
method: POST
path: "/v1/billing/subscribe"
tags: ["billing"]
---

# Start the Team subscription (not currently offered)

`POST /v1/billing/subscribe`

## Request

- Base URL: `https://api.hyperresearch.ai`
- URL: `https://api.hyperresearch.ai/v1/billing/subscribe`
- Auth: one of:
  - HTTP bearer
  - API key in cookie `hr_session`

The Team plan is not on sale: this answers 400 `plan_not_offered` unless the deployment re-enables it. When enabled, it creates a Stripe-hosted Checkout for the monthly Team license; the permanent exact-cents usage subscription remains separate and unchanged, and entitlement follows the paid Team webhook.

## Request body

- BillingSessionBody
  - `return_path` string

## Response `200`

Checkout URL

- BillingSessionUrl
  - `url` string, required

## Other responses

- `400`: Invalid request
- `401`: Authentication failed
- `403`: Insufficient scope or plan
- `404`: Not found
- `429`: Rate limited or over quota
- `500`: Internal error

---

[API](https://skmtc.dev/hyperresearch/apis/hyperresearch-cloud-api.md) · [All operations](https://skmtc.dev/hyperresearch/apis/hyperresearch-cloud-api/llms.txt) · [OpenAPI document](https://skmtc.dev/hyperresearch/apis/hyperresearch-cloud-api/revisions/726ef831ebf4?raw)