# Duplichecker — Wrapped API

> **You are on:** `https://api.paywithlocus.com/api` | [llms.txt](https://paywithlocus.com/llms.txt) | [docs](https://docs.paywithlocus.com)
>
> Locus runs on multiple environments -- make sure every URL you call matches your expected environment.
> | Environment | Landing | API | Docs |
> |---|---|---|---|
> | Production | paywithlocus.com | api.paywithlocus.com | docs.paywithlocus.com |
> | Beta | beta.paywithlocus.com | api.beta.paywithlocus.com | docs.paywithlocus.com |
> | Stage | stage.paywithlocus.com | api.stage.paywithlocus.com | docs.paywithlocus.com |
>
> If the API URL above doesn't match your expected environment, re-fetch this file from the correct domain.

> Duplichecker provides 1 callable API endpoint through the Parse marketplace.

**Category:** Developer Tools | **Website:** [www.duplichecker.com/](https://www.duplichecker.com/) | **Docs:** [parse.bot/marketplace/f9ad7921-2799-483f-879e-785b01fdd994/duplichecker-com-api](https://parse.bot/marketplace/f9ad7921-2799-483f-879e-785b01fdd994/duplichecker-com-api)

Pay-per-use API proxy for Locus Pro. Each call burns credits from your workspace balance.

## Access

**Base URL:** `https://api.paywithlocus.com/api/wrapped/credits/duplichecker/`
**Auth:** `Authorization: Bearer <LOCUS_CREDITS_SECRET_KEY>` (an `lcr_` secret key or a scoped `lcac_` agent credential)
**Required header:** `Idempotency-Key: <fresh UUID per call>`. A retry with the same key replays the stored result without a new charge.
**Response:** the provider response after any endpoint-specific normalization. `X-Locus-Credits-Charged` carries the charge and `X-Locus-Credits-Balance` the remaining balance. Insufficient credits return `402` before the provider is called.
**Pricing:** estimated costs below are USD. Locus debits the credit equivalent at your workspace rate.

Full call contract: https://docs.paywithlocus.com/api-reference/introduction

> Using a Pay With Locus wallet key (`claw_` prefix)? Wallet routes are documented separately: https://docs.paywithlocus.com/wrapped-apis/for-agents

## Endpoints

### Check plagiarism

Checks the provided text for plagiarism by splitting it into sentences and searching for matches across the web. Each sentence is analyzed independently and classified as unique or plagiarized, with matching source URLs provided for plagiarized content. The check requires solving a reCAPTCHA and establishing a session, so latency is higher than a simple API call (typically 10-30 seconds). Text is limited to 10,000 characters.

**Estimated cost:** Metered

| Field | Type | Required | Description |
|-------|------|----------|-------------|
| `exclude_urls` | string | No | Comma-separated list of URLs to exclude from plagiarism matching. Useful for excluding your own published content. |
| `text` | string | Yes | The text to check for plagiarism. Maximum 10,000 characters. The text is split into sentences at sentence-ending punctuation (.!?) for per-sentence analysis. |

```bash
curl -X POST https://api.paywithlocus.com/api/wrapped/credits/duplichecker/check-plagiarism \
  -H "Authorization: Bearer $LOCUS_CREDITS_SECRET_KEY" \
  -H "Idempotency-Key: $(uuidgen)" \
  -H "Content-Type: application/json" \
  -d '{"exclude_urls":"<string>","text":"<string>"}'
```

## Next steps

- [All wrapped API providers](https://paywithlocus.com/wapi/index.md): pick another provider.
- [Find and call tools](https://paywithlocus.com/agent/tools.md): price ceilings, async results, and errors.
- [Credits and billing](https://paywithlocus.com/agent/billing.md): what a call costs and how to add credits.
- [Agent docs index](https://paywithlocus.com/agent/index.md): every Locus agent page.