---
title: "Changes to Create Guardrail"
method: POST
path: "/guardrails"
---

# Changes to Create Guardrail

`POST /guardrails`

> Every recorded change to this endpoint, newest first.

## Timeline

Changed in 12 of 42 revisions.

- **2026-09-27** `b694deb1e459` — 2 info
- **2026-09-26** `cfac079bcc04` — 2 info
- **2026-09-25** `a4fccd4bf54d` — 2 info
- **2026-09-21** `6246f8d427b7` — 2 info
- **2026-09-19** `c357baf422ab` — 2 info
- **2026-09-18** `082b5fabd909` — 1 breaking, 38 info
- **2026-09-17** `e2f308355e2d` — 2 info
- **2026-09-01** `89805a9f84ad` — 2 info
- **2026-09-01** `5c00a227eebf` — 2 info
- **2026-08-30** `24ad9eaf6a00` — 2 info
- **2026-08-27** `4a06c3148b6c` — 2 info
- **2026-08-13** `9dbf4ea7ee00` — 2 info

## Changes

- **2026-09-27** `b694deb1e459` — 2 info
  - api tag `guardrails` added
  - api tag `Guardrails` removed
- **2026-09-26** `cfac079bcc04` — 2 info
  - api tag `Guardrails` added
  - api tag `guardrails` removed
- **2026-09-25** `a4fccd4bf54d` — 2 info
  - api tag `guardrails` added
  - api tag `Guardrails` removed
- **2026-09-21** `6246f8d427b7` — 2 info
  - api tag `Guardrails` added
  - api tag `guardrails` removed
- **2026-09-19** `c357baf422ab` — 2 info
  - api tag `guardrails` added
  - api tag `Guardrails` removed
- **2026-09-18** `082b5fabd909` — 1 breaking, 38 info
  - removed `#/components/schemas/GraySwanGuardrailConfigModelOptionalParams` from the `guardrail/litellm_params/optional_params` request property `anyOf` list
  - api tag `Guardrails` added
  - api tag `guardrails` removed
  - added the new optional request property `guardrail/litellm_params/advisory_system_message`
  - added the new optional request property `guardrail/litellm_params/asset_id`
  - added the new optional request property `guardrail/litellm_params/aws_external_id`
  - added the new optional request property `guardrail/litellm_params/checks`
  - added the new optional request property `guardrail/litellm_params/chunk_budget_chars`
  - added the new optional request property `guardrail/litellm_params/content_filter_threshold`
  - added the new optional request property `guardrail/litellm_params/deepkeep_firewall_id`
  - added the new optional request property `guardrail/litellm_params/on_sensitive_data`
  - added the new optional request property `guardrail/litellm_params/only_scan_new_messages`
  - added the new optional request property `guardrail/litellm_params/pii_confidence_threshold`
  - added the new optional request property `guardrail/litellm_params/post_checkpoint_id`
  - added the new optional request property `guardrail/litellm_params/pre_checkpoint_id`
  - added the new optional request property `guardrail/litellm_params/presidio_analyze_chunk_size_bytes`
  - added the new optional request property `guardrail/litellm_params/prompt_attack_threshold`
  - added the new optional request property `guardrail/litellm_params/run_in_parallel`
  - added the new optional request property `guardrail/litellm_params/sanitize_error_detail`
  - added the new optional request property `guardrail/litellm_params/scan_only_tool_results`
  - added the new optional request property `guardrail/litellm_params/scan_raw_request`
  - added the new optional request property `guardrail/litellm_params/sensitive_data_route_to_model`
  - added the new optional request property `guardrail/litellm_params/singulr_api_base`
  - added the new optional request property `guardrail/litellm_params/singulr_api_key`
  - added the new optional request property `guardrail/litellm_params/singulr_application_id`
  - added the new optional request property `guardrail/litellm_params/singulr_guardrail_id`
  - added the new optional request property `guardrail/litellm_params/skip_tool_message_in_guardrail`
  - added the new optional request property `guardrail/litellm_params/skip_unscannable_attachments`
  - added the new optional request property `guardrail/litellm_params/sticky_session_routing`
  - added the new optional request property `guardrail/litellm_params/timeout`
  - added the new optional request property `guardrail/litellm_params/tracker_api_base`
  - added the new optional request property `guardrail/litellm_params/tracker_api_key`
  - added `#/components/schemas/CiscoAIDefenseGuardrailConfigModelOptionalParams` to the `guardrail/litellm_params/optional_params` request property `anyOf` list
  - added the new `UK_PASSPORT` enum value to the request property `guardrail/litellm_params/presidio_entities_deny_list/anyOf[subschema #1]/items/anyOf[subschema #1: PiiEntityType]/`
  - added the new `UK_POSTCODE` enum value to the request property `guardrail/litellm_params/presidio_entities_deny_list/anyOf[subschema #1]/items/anyOf[subschema #1: PiiEntityType]/`
  - added the new `UK_VEHICLE_REGISTRATION` enum value to the request property `guardrail/litellm_params/presidio_entities_deny_list/anyOf[subschema #1]/items/anyOf[subschema #1: PiiEntityType]/`
  - added the new `inject_system_message` enum value to the request property `guardrail/litellm_params/on_flagged/anyOf[subschema #1]/`
  - 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` — 2 info
  - api tag `guardrails` added
  - api tag `Guardrails` removed
- **2026-09-01** `89805a9f84ad` — 2 info
  - api tag `Guardrails` added
  - api tag `guardrails` removed
- **2026-09-01** `5c00a227eebf` — 2 info
  - api tag `guardrails` added
  - api tag `Guardrails` removed
- **2026-08-30** `24ad9eaf6a00` — 2 info
  - api tag `Guardrails` added
  - api tag `guardrails` removed
- **2026-08-27** `4a06c3148b6c` — 2 info
  - api tag `guardrails` added
  - api tag `Guardrails` removed
- **2026-08-13** `9dbf4ea7ee00` — 2 info
  - api tag `Guardrails` added
  - api tag `guardrails` removed

---

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