# CardVolume

> Verified trading card sales and prices by grade: Pokemon, Magic, Yu-Gi-Oh!, sports, Harry Potter.

- name: com.cardvolume/market-data
- version: 1.0.0
- connection class: R0 (autonomous)
- trust: 82/100 flags: no-repository
- quality: 85/100 (good)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/com.cardvolume%2Fmarket-data
- tools: https://api.protogrid.dev/v1/servers/com.cardvolume%2Fmarket-data/tools

**An agent can connect right now, no human step.** Remote endpoint, no authentication, reachable on the last probe.

## Connection (mcpServers)

```json
{
  "mcpServers": {
    "market-data": {
      "type": "http",
      "url": "https://cardvolume.com/mcp"
    }
  }
}
```


## Trust

- hygiene: 80
- liveness: 98
- freshness: 100
- provenance: 55
- drivers: +dns-namespace +website +reachable +uptime-95% +updated-17d-ago -no-repository
- Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed.

## Quality 85/100 (good)

### protocol: 75 (weight 25)

- warn `protocol.modern`: newest supported version is 2025-11-25; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
- n/a `protocol.stateless`: only applies to 2026-07-28 servers
- pass `protocol.transport`: streamable HTTP
- n/a `protocol.list_ttl`: only applies to 2026-07-28 servers

### authorization: n/a (weight 15)

- n/a `auth.prm`, `auth.as_metadata`, `auth.cimd`: no remote uses OAuth
- n/a `auth.secret_in_url`: no templated URL

### tool hygiene: 86 (weight 30)

- pass `tools.descriptions`: every tool has a description
- pass `tools.description_length`: descriptions are concise
- pass `tools.schemas`: every tool has an object input schema
- pass `tools.annotations`: 4 of 4 tools declare readOnlyHint or destructiveHint
- fail `tools.directory_hints`: no tool declares all four of readOnlyHint, destructiveHint, idempotentHint and openWorldHint; missing: list_record_sales (destructiveHint, idempotentHint); get_set_checklist (destructiveHint, idempotentHint); search_cards (destructiveHint, idempotentHint); …
- pass `tools.token_cost`: about 499 tokens to load every tool
- pass `tools.api_dump`: tools are not a one-to-one API dump

### stability: 100 (weight 15)

- pass `stability.changes`: no tool changes in 30 days
- pass `stability.rug_pull`: no tool changed its meaning under the same name

### dependencies: n/a (weight 15)

- n/a `deps.known_vulns`, `deps.mcp_sdk_version`, `deps.resolvable`: no npm or PyPI package

- tools: 4, about 499 tokens to load them all
- tool set hash: 08c702dcfff377567f47e251efec948b
- badge: [![protogrid quality](https://protogrid.dev/badge/com.cardvolume/market-data.svg)](https://protogrid.dev/servers/com.cardvolume/market-data)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

_No tool definition changes recorded._

## Remotes

- https://cardvolume.com/mcp (streamable-http, auth none, reachable true, uptime30d 0.95384616)

## Packages

_none_

## Tools (4)

- `get_card`: Full verified data for one card: key facts, market price for each version and grade (median of at least 5 verified sales in 90 days), last and record sale, population, and every verified sale with its source URL. Accepts a CardVolume id, a card URL, or a search query.
- `get_set_checklist`: Every card in a set (for example the Harry Potter TCG Base Set) with number, type, rarity, holo version and whether two independent sources agree. Call with no arguments to list available sets.
- `list_record_sales`: Highest verified sale for each card, version and grade, largest first, with venue, date and source URL.
- `search_cards`: Find trading cards tracked by CardVolume by name, set, number or player. Returns ids, titles, headline market price and record sale. Use get_card with an id for full data.