---
title: "Check text for plagiarism"
method: POST
path: "/text/plagiarism"
tags: ["text"]
---

# Check text for plagiarism

`POST /text/plagiarism`

## Request

- Base URL: `https://api.krater.ai/v1`
- URL: `https://api.krater.ai/v1/text/plagiarism`
- Auth: HTTP bearer

Check a text against web sources for plagiarism.

## Request body

- TextRequest
  - `text` string, required: The text to process.

## Response `200`

Plagiarism result.

- object
  - `score` number: Overall similarity score.
  - `sources` object[]
    - `url` string, uri
    - `similarity` number

## Other responses

- `400`: Invalid request body or parameters.
- `401`: Missing or invalid API key. Pass Authorization: Bearer kr_live_...
- `402`: Not enough credits, or the API key's daily credit cap is reached.
- `429`: Rate limit exceeded (default 60 requests per minute per key). Includes a Retry-After header.

---

[API](https://skmtc.dev/krater/apis/krater-api.md) - [All operations](https://skmtc.dev/krater/apis/krater-api/llms.txt) - [OpenAPI document](https://skmtc.dev/krater/apis/krater-api/revisions/66005541188c?raw)