# Comc — Wrapped API

> **You are on:** `https://api.beta.paywithlocus.com/api` | [llms.txt](https://beta.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 and browse sports card listings from COMC's marketplace to find specific cards, compare prices, and discover available trading cards for sale. Filter through thousands of collectible card offerings to locate rare items and track inventory across the platform.

**Category:** Marketplaces | **Website:** [www.comc.com/](https://www.comc.com/) | **Docs:** [parse.bot/marketplace/9e6225ee-52f3-42a2-bf13-b7af7d68c662/comc-com-api](https://parse.bot/marketplace/9e6225ee-52f3-42a2-bf13-b7af7d68c662/comc-com-api)

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

## Access

**Base URL:** `https://api.beta.paywithlocus.com/api/wrapped/credits/comc/`
**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 listings

Search for sports card listings on COMC by keyword. Returns paginated results sorted by Highest SRP (Suggested Retail Price). Each page returns up to 100 listings with card details, pricing, and seller availability. Supports optional category filtering (e.g. Baseball, Basketball, Football, Hockey), grading company filtering (e.g. PSA, BGS, SGC), and listing type filtering (auction or buy_now). When query is omitted, browses all listings matching the applied filters. Use the page parameter to paginate through results.

**Estimated cost:** Metered

| Field | Type | Required | Description |
|-------|------|----------|-------------|
| `category` | string | No | Sport category filter. When omitted, searches across all categories. Observed values include Baseball, Basketball, Football, Hockey, MultiSport. |
| `grader` | string | No | Grading company filter. When omitted, returns all listings regardless of grading. Observed values include PSA, BGS, SGC, CGC, CSG. |
| `listing_type` | string | No | Listing format filter. When omitted, returns both auction and buy-now listings. |
| `page` | integer | No | Page number for pagination (1-indexed). Each page contains up to 100 listings. |
| `query` | string | No | Search query for cards (e.g. player name, set name, card number). When omitted, returns all listings matching other filters. |

```bash
curl -X POST https://api.beta.paywithlocus.com/api/wrapped/credits/comc/search-listings \
  -H "Authorization: Bearer $LOCUS_CREDITS_SECRET_KEY" \
  -H "Idempotency-Key: $(uuidgen)" \
  -H "Content-Type: application/json" \
  -d '{"category":"<string>","grader":"<string>","listing_type":"<string>","page":"<integer>","query":"<string>"}'
```

## Next steps

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