# Courtlistener — 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.

> Search through millions of court opinions and RECAP docket documents across 471 jurisdictions to find relevant legal cases and filings for your research. Access free legal information from CourtListener to quickly locate court rulings, case documents, and docket details without subscription fees.

**Category:** Government & Public Data | **Website:** [www.courtlistener.com/](https://www.courtlistener.com/) | **Docs:** [parse.bot/marketplace/a63fcdb2-df92-4faa-b7ba-f32c05168086/courtlistener-com-api](https://parse.bot/marketplace/a63fcdb2-df92-4faa-b7ba-f32c05168086/courtlistener-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/courtlistener/`
**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

### Search opinions

Full-text search over published court opinions (case law). Returns case metadata, judge, citations, and opinion snippets. Results are ordered by the chosen sort and auto-iterated across cursor pages.

**Estimated cost:** Metered

| Field | Type | Required | Description |
|-------|------|----------|-------------|
| `filed_after` | string | No | ISO date (YYYY-MM-DD). Only return opinions filed on or after this date. |
| `filed_before` | string | No | ISO date (YYYY-MM-DD). Only return opinions filed on or before this date. |
| `order_by` | string | No | Sort order for results. |
| `page` | integer | No | Page number for results pagination. |
| `query` | string | Yes | Full-text search query (supports Boolean operators). |

```bash
curl -X POST https://api.paywithlocus.com/api/wrapped/credits/courtlistener/search-opinions \
  -H "Authorization: Bearer $LOCUS_CREDITS_SECRET_KEY" \
  -H "Idempotency-Key: $(uuidgen)" \
  -H "Content-Type: application/json" \
  -d '{"filed_after":"<string>","filed_before":"<string>","order_by":"<string>","page":"<integer>","query":"<string>"}'
```

### Search recap documents

Full-text search over the RECAP archive of PACER docket entries and documents. Returns docket metadata, parties, attorneys, and matching documents with text snippets. Results are ordered by the chosen sort and auto-iterated across cursor pages.

**Estimated cost:** Metered

| Field | Type | Required | Description |
|-------|------|----------|-------------|
| `filed_after` | string | No | ISO date (YYYY-MM-DD). Only return dockets filed on or after this date. |
| `filed_before` | string | No | ISO date (YYYY-MM-DD). Only return dockets filed on or before this date. |
| `order_by` | string | No | Sort order for results. |
| `page` | integer | No | Page number for results pagination. |
| `query` | string | Yes | Full-text search query (supports Boolean operators). |

```bash
curl -X POST https://api.paywithlocus.com/api/wrapped/credits/courtlistener/search-recap-documents \
  -H "Authorization: Bearer $LOCUS_CREDITS_SECRET_KEY" \
  -H "Idempotency-Key: $(uuidgen)" \
  -H "Content-Type: application/json" \
  -d '{"filed_after":"<string>","filed_before":"<string>","order_by":"<string>","page":"<integer>","query":"<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.