---
title: "POST /api/v1/account/family/invitations"
method: POST
path: "/api/v1/account/family/invitations"
tags: ["Account", "Family"]
---

# POST /api/v1/account/family/invitations

`POST /api/v1/account/family/invitations`

Creates a seven-day one-use family invitation. Only its SHA-256 digest is persisted; the bearer URL is returned once to the owner.

## Cookies

- `billing_session` string

## Request body

- object
  - `email` string, required

## Response `201`

One-use invitation link and safe invitation metadata.

- object
  - `acceptUrl` string, uri, required
  - `invitation` object, required
    - `createdAt` string, date-time, required
    - `email` string, required
    - `expiresAt` string, date-time, required
    - `id` string, uuid, required

## Other responses

- `400` — The request does not match the strict invitation contract.
- `401` — No valid Product session exists.
- `403` — The request is cross-origin or the subscriber is not the owner.
- `404` — No active family Membership exists.
- `409` — The family is full or that Product account already exists.

---

[API](https://skmtc.dev/expertshelp/apis/billing-core-api.md) · [All operations](https://skmtc.dev/expertshelp/apis/billing-core-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/expertshelp/billing-core-api/revisions/7de83259abe9/schema)