---
title: "Changes to Check and reserve flag"
method: POST
path: "/flags/{key}/check-and-reserve"
---

# Changes to Check and reserve flag

`POST /flags/{key}/check-and-reserve`

> Every recorded change to this endpoint, newest first.

## Timeline

Changed in 3 of 171 revisions.

- **2026-09-17** `5206bbdb2682` — 1 info
- **2026-09-17** `d2fb8bb90eaf` — 1 warning
- **2026-09-14** `1ce13450aec3` — 1 info

## Changes

- **2026-09-17** `5206bbdb2682` — 1 info
  - added the new optional request property `idempotency_key`
- **2026-09-17** `d2fb8bb90eaf` — 1 warning
  - the `quantity` request property's max was set to `9999999999.00`
- **2026-09-14** `1ce13450aec3` — 1 info
  - endpoint added

---

[Operation](https://skmtc.dev/schematichq/apis/schematic-api/docs/flags/:key/check-and-reserve/post.md) · [API](https://skmtc.dev/schematichq/apis/schematic-api.md) · [Page](https://skmtc.dev/schematichq/apis/schematic-api/changes/flags/:key/check-and-reserve/post)