---
title: "Changes to Apply Guardrail"
method: POST
path: "/apply_guardrail"
---

# Changes to Apply Guardrail

`POST /apply_guardrail`

> Every recorded change to this endpoint, newest first.

## Timeline

Changed in 12 of 42 revisions.

- **2026-09-27** `b694deb1e459` — 1 info
- **2026-09-26** `cfac079bcc04` — 1 info
- **2026-09-25** `a4fccd4bf54d` — 1 info
- **2026-09-21** `6246f8d427b7` — 1 info
- **2026-09-19** `c357baf422ab` — 1 info
- **2026-09-18** `082b5fabd909` — 7 info
- **2026-09-17** `e2f308355e2d` — 1 info
- **2026-09-01** `89805a9f84ad` — 1 info
- **2026-09-01** `5c00a227eebf` — 1 info
- **2026-08-30** `24ad9eaf6a00` — 1 info
- **2026-08-27** `4a06c3148b6c` — 1 info
- **2026-08-13** `9dbf4ea7ee00` — 1 info

## Changes

- **2026-09-27** `b694deb1e459` — 1 info
  - api tag `guardrails` added
- **2026-09-26** `cfac079bcc04` — 1 info
  - api tag `guardrails` removed
- **2026-09-25** `a4fccd4bf54d` — 1 info
  - api tag `guardrails` added
- **2026-09-21** `6246f8d427b7` — 1 info
  - api tag `guardrails` removed
- **2026-09-19** `c357baf422ab` — 1 info
  - api tag `guardrails` added
- **2026-09-18** `082b5fabd909` — 7 info
  - api tag `guardrails` removed
  - added the new optional request property `metadata`
  - added the new `UK_PASSPORT` enum value to the request property `entities/anyOf[subschema #1]/items/`
  - added the new `UK_POSTCODE` enum value to the request property `entities/anyOf[subschema #1]/items/`
  - added the new `UK_VEHICLE_REGISTRATION` enum value to the request property `entities/anyOf[subschema #1]/items/`
  - added the optional property `detail/items/ctx` to the response with the `422` status
  - added the optional property `detail/items/input` to the response with the `422` status
- **2026-09-17** `e2f308355e2d` — 1 info
  - api tag `guardrails` added
- **2026-09-01** `89805a9f84ad` — 1 info
  - api tag `guardrails` removed
- **2026-09-01** `5c00a227eebf` — 1 info
  - api tag `guardrails` added
- **2026-08-30** `24ad9eaf6a00` — 1 info
  - api tag `guardrails` removed
- **2026-08-27** `4a06c3148b6c` — 1 info
  - api tag `guardrails` added
- **2026-08-13** `9dbf4ea7ee00` — 1 info
  - api tag `guardrails` removed

---

[Operation](https://skmtc.dev/flock/apis/litellm-api/docs/apply_guardrail/post.md) · [API](https://skmtc.dev/flock/apis/litellm-api.md) · [Page](https://skmtc.dev/flock/apis/litellm-api/changes/apply_guardrail/post)