# CardWorthScanner — TCG Price, Centering & PSA Grading ROI Engine

> Calculate PSA/BGS/CGC card grading ROI, 55/45 centering grades & Pokemon/Yu-Gi-Oh market values.

- name: com.cardworthscanner/mcp
- version: 1.0.2
- connection class: R0 (autonomous)
- trust: 95/100
- quality: 89/100 (new)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/com.cardworthscanner%2Fmcp
- tools: https://api.protogrid.dev/v1/servers/com.cardworthscanner%2Fmcp/tools

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

## Connection (mcpServers)

```json
{
  "mcpServers": {
    "cardworthscanner": {
      "type": "http",
      "url": "https://cardworthscanner.com/api/mcp"
    }
  }
}
```


## Trust

- hygiene: 100
- liveness: 97
- freshness: 100
- provenance: 85
- drivers: +repository +dns-namespace +website +reachable +uptime-92% +updated-4d-ago
- 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 2025-06-18; 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`: 8 of 8 tools declare readOnlyHint or destructiveHint
- pass `tools.directory_hints`: every tool declares readOnlyHint, destructiveHint, idempotentHint and openWorldHint
- pass `tools.token_cost`: about 1,365 tokens to load every tool
- pass `tools.api_dump`: tools are not a one-to-one API dump
- pass `tools.hidden_text`: no hidden text in tool names, descriptions, schemas or annotations

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

- n/a `stability.changes`, `stability.rug_pull`, `stability.new_links`: tool history recorded for 6 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: 8, about 1,365 tokens to load them all
- tool set hash: f3f593427abb15b68e95237392f57129
- tools last changed: 2026-11-10T06:25:37.943Z
- badge: [![protogrid quality](https://protogrid.dev/badge/com.cardworthscanner/mcp.svg)](https://protogrid.dev/servers/com.cardworthscanner/mcp)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

- 2026-11-10 `check_card_sleeve_and_holder_dimensions` added
  - Look up exact card dimensions in mm/inches and required submission holder specs (Card Saver 1 semi-rigid vs 35pt/55pt/130pt toploader) for Standard (Pokemon/MTG/Sports) vs Japanese (Yu-Gi-Oh!) cards.
- 2026-11-10 `estimate_ebay_tcgplayer_seller_net_payout` added
  - Calculate net seller take-home payout after platform final value fees (eBay 13.25%, TCGplayer Pro/Level 4, Goldin/PWCC vault) and shipping insurance.
- 2026-11-10 `compare_card_grading_company_tiers` added
  - Compare submission fees, maximum declared value caps, and estimated turnaround business days across PSA, Beckett (BGS), and CGC based on post-grading card value.
- 2026-11-10 `identify_vintage_pokemon_edition_markers` added
  - Identify 1999 Wizards of the Coast Pokemon Base Set print runs (1st Edition Thick/Thin Stamp, Shadowless Red Cheeks/Yellow Cheeks, Unlimited, 1999-2000 4th Print UK) from visual border and copyright cues.
- 2026-11-10 `lookup_psa_bgs_cgc_grading_standards` added
  - Look up exact front/back centering tolerances, corner sharpness, edge whitening, and surface rules for PSA 10 Gem Mint, BGS 10 Black Label, CGC 10 Pristine, and TAG 1000.
- 2026-11-10 `lookup_tcg_card_market_price` changed (title, annotations)
- 2026-11-10 `calculate_card_centering_grade` changed (title, annotations)
- 2026-11-10 `calculate_psa_grading_roi` changed (title, annotations)

Full history: https://api.protogrid.dev/v1/servers/com.cardworthscanner%2Fmcp/changes

## Remotes

- https://cardworthscanner.com/api/mcp (streamable-http, auth none, reachable true, uptime30d 0.9166667)

## Packages

_none_

## Tools (8)

- `calculate_card_centering_grade`: Calculate trading card border centering ratios (Left/Right and Top/Bottom in mm or px) and determine maximum eligible grades across PSA (55/45), BGS (Black Label 50/50), CGC, and TAG.
- `calculate_psa_grading_roi`: Calculate deterministic PSA / BGS / CGC card grading net profit, ROI %, expected value (EV), and break-even Gem Mint probability after 12.5% marketplace fees.
- `check_card_sleeve_and_holder_dimensions`: Look up exact card dimensions in mm/inches and required submission holder specs (Card Saver 1 semi-rigid vs 35pt/55pt/130pt toploader) for Standard (Pokemon/MTG/Sports) vs Japanese (Yu-Gi-Oh!) cards.
- `compare_card_grading_company_tiers`: Compare submission fees, maximum declared value caps, and estimated turnaround business days across PSA, Beckett (BGS), and CGC based on post-grading card value.
- `estimate_ebay_tcgplayer_seller_net_payout`: Calculate net seller take-home payout after platform final value fees (eBay 13.25%, TCGplayer Pro/Level 4, Goldin/PWCC vault) and shipping insurance.
- `identify_vintage_pokemon_edition_markers`: Identify 1999 Wizards of the Coast Pokemon Base Set print runs (1st Edition Thick/Thin Stamp, Shadowless Red Cheeks/Yellow Cheeks, Unlimited, 1999-2000 4th Print UK) from visual border and copyright cues.
- `lookup_psa_bgs_cgc_grading_standards`: Look up exact front/back centering tolerances, corner sharpness, edge whitening, and surface rules for PSA 10 Gem Mint, BGS 10 Black Label, CGC 10 Pristine, and TAG 1000.
- `lookup_tcg_card_market_price`: Look up raw TCGplayer USD, Cardmarket EUR, PSA 9, PSA 10, and BGS 9.5 graded prices for Pokemon, Yu-Gi-Oh!, and Sports cards by name or card number (e.g. "Charizard", "4/102", "Umbreon", "Blue-Eyes White Dragon").