# HobbyCardIndex Card Prices

> Sold prices for 16 million sports and trading cards, raw and graded, from HobbyCardIndex.

- name: com.hobbycardindex/card-prices
- version: 1.0.0
- connection class: R1 (autonomous)
- trust: 83/100 flags: no-repository
- quality: 89/100 (new)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/com.hobbycardindex%2Fcard-prices
- tools: https://api.protogrid.dev/v1/servers/com.hobbycardindex%2Fcard-prices/tools

**An agent can connect on its own if it already holds `X_API_KEY`, `X_API_KEY`.** Remote endpoint behind a static API key or header. The registry never sees the value; the agent fills the placeholder.

## Connection (mcpServers)

```json
{
  "mcpServers": {
    "card-prices": {
      "type": "http",
      "url": "https://hobbycardindex.com/api/v1/mcp",
      "headers": {
        "X-API-Key": "${X_API_KEY}",
        "Authorization": "${X_API_KEY}"
      }
    }
  }
}
```

Placeholders to fill: `${X_API_KEY}`, `${X_API_KEY}`.

## Trust

- hygiene: 80
- liveness: 100
- freshness: 100
- provenance: 55
- drivers: +dns-namespace +website +reachable +uptime-100% +updated-4d-ago -no-repository
- Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed.

## Quality 89/100 (new)

### 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: 100 (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`: 2 of 2 tools declare readOnlyHint or destructiveHint
- pass `tools.directory_hints`: every tool declares readOnlyHint, destructiveHint, idempotentHint and openWorldHint
- pass `tools.token_cost`: about 373 tokens to load every tool
- pass `tools.api_dump`: tools are not a one-to-one API dump

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

- n/a `stability.changes`, `stability.rug_pull`: tool history recorded for 3 of the 7 days needed

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

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

- tools: 2, about 373 tokens to load them all
- tool set hash: 087bc4a5b539fc4a350215e86880e37c
- badge: [![protogrid quality](https://protogrid.dev/badge/com.hobbycardindex/card-prices.svg)](https://protogrid.dev/servers/com.hobbycardindex/card-prices)
- 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://hobbycardindex.com/api/v1/mcp (streamable-http, auth api_key ${X_API_KEY}, reachable true, uptime30d 1)

## Packages

_none_

## Tools (2)

- `get_card_prices`: Current sold prices for one card at every grade: raw (ungraded), PSA 7, PSA 8, PSA 9, PSA 10, BGS 9.5, CGC 10 and SGC 10, in US dollars, with the link to the card page for recent sales and price history. Take the card_id from search_cards. Needs a HobbyCardIndex API key.
- `search_cards`: Find a sports or trading card and its current sold price. Describe the card the way a collector would, for example "1989 Upper Deck Ken Griffey Jr 1", "2018 Topps Update Acuna US250" or "Charizard Base Set". Returns up to 5 matching cards with the raw (ungraded) and PSA 10 price, a card_id, and the link to the card page. Use get_card_prices for every grade of one card. Needs a HobbyCardIndex API key.