# Mntgrading — 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.

> Access data from mntgrading.com.

**Category:** Sports | **Website:** [www.mntgrading.com/](https://www.mntgrading.com/) | **Docs:** [parse.bot/marketplace/f10b5d55-4a3d-4060-95dc-2f3b86f1917a/mntgrading-com-api](https://parse.bot/marketplace/f10b5d55-4a3d-4060-95dc-2f3b86f1917a/mntgrading-com-api)

Pay-per-use API proxy. Each call is automatically billed to your wallet in USDC.

## Access

**Base URL:** `https://api.paywithlocus.com/api/wrapped/parse-mntgrading-com-api-f10b5d55/`
**Auth:** `Authorization: Bearer <LOCUS_API_KEY>`

## Endpoints

### cert_lookup

Look up a graded card by its MNT Grading verification/certificate number. Returns detailed card information including player name, year, set, card number, and sub-grades (corners, centering, edges, surface) plus overall grade and autograph grade. Returns stale_input when the certificate number does not exist in the database.

**Estimated cost:** Metered

| Field | Type | Required | Description |
|-------|------|----------|-------------|
| `cert_number` | string | Yes | The MNT Grading verification/certificate number found on the grading case label (do not include leading zeros). |

```bash
curl -X POST https://api.paywithlocus.com/api/wrapped/parse-mntgrading-com-api-f10b5d55/cert_lookup \
  -H "Authorization: Bearer YOUR_LOCUS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"cert_number":"<string>"}'
```

### search_population

Search the MNT Grading population report by player name and optional filters. Returns aggregated population counts grouped by unique card (player, year, company, set, subset, card number), with a population object showing the count of graded cards at each grade level. Player name is required; all other filters are optional and narrow results.

**Estimated cost:** Metered

| Field | Type | Required | Description |
|-------|------|----------|-------------|
| `company` | string | No | Card manufacturer/company to filter by (e.g. 'Upper Deck', 'Pokemon TCG'). |
| `player` | string | Yes | Player or card name to search for (e.g. 'Wayne Gretzky', 'Charizard'). |
| `set` | string | No | Set name to filter by (e.g. 'Series Two', 'Black Diamond'). |
| `subset` | string | No | Subset name to filter by (e.g. 'Young Guns', 'Rookie Auto'). |
| `year` | string | No | Card year or season to filter by (e.g. '2016-17', '2000'). |

```bash
curl -X POST https://api.paywithlocus.com/api/wrapped/parse-mntgrading-com-api-f10b5d55/search_population \
  -H "Authorization: Bearer YOUR_LOCUS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"company":"<string>","player":"<string>","set":"<string>","subset":"<string>","year":"<string>"}'
```