---
title: "Archive Anachronism Guard"
method: POST
path: "/archive/anachronism-guard"
---

# Archive Anachronism Guard

`POST /archive/anachronism-guard`

## Request

- Base URL: `https://api.colourmemory.com` (the document declares no server; this is the origin it was published from)
- URL: `https://api.colourmemory.com/archive/anachronism-guard`
- Auth: none declared

Check a list of colour entries for anachronism risk.

For each entry: detects whether the primary source date falls outside
the requested period, whether the archive is a known modern source,
and returns a period_relevance score and safe phrasing.

Essential for historical documents where a modern racing silk registration
or a 2011 Jockey Club entry must not be presented as Georgian evidence.

## Headers

- `x-api-key` string, nullable
- `origin` string, nullable

## Request body

- AnachronismGuardRequest
  - `entries` object[], required
  - `target_period` string
  - `period_start` integer
  - `period_end` integer

## Response `200`

Successful Response

- unknown

## Other responses

- `422`: Validation Error

---

[API](https://skmtc.dev/colourmemory/apis/colour-memory-api.md) · [All operations](https://skmtc.dev/colourmemory/apis/colour-memory-api/llms.txt) · [OpenAPI document](https://skmtc.dev/colourmemory/apis/colour-memory-api/revisions/4ba028f64042?raw)