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Independent measurements of remote MCP servers. Every observation has a timestamp.

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MCP server · Other

CardWorthScanner — TCG Price, Centering & PSA Grading ROI Engine

By cardworthscanner.com Verified namespace

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

WebsiteSource code
Connect to CardWorthScanner — TCG Price, Centering & PSA Grading ROI Engine
Checks passed
15 / 22

0 failed · 7 not measured

Median response
173 ms

Median of successful probes over 7 days

30-day uptime
Not measured

Share of countable probes over 30 days, including daily rollups. Auth challenges are excluded.

Discovered tools
8

Tool definitions returned by this server

Independent monitoring

Health & checks

Status history

Responded

The server completed its last measured handshake. This is an observation, not a guarantee.

Last checked
Check summary by test group
Test areaPassedFailedUnmeasured
ConnectionCan a client connect and discover tools?
500
Reliability & speedDoes it respond consistently and quickly?
103
Access & authenticationWhat is required to use this server?
102
Tool qualityAre the tool definitions usable by an agent?
400
Publisher identityCan the publisher be traced to its source?
402

Unmeasured means there is not enough evidence to decide. How these checks work

Inspect individual checks 22 recorded

Core

  • Pass
    Reachable

    Latest probe returned HTTP 200 in 175 ms.

  • Pass
    Valid handshake

    protocolVersion 2025-06-18, serverInfo.name com.cardworthscanner/mcp.

  • Pass
    Lists tools

    tools/list returned 8 tools.

  • Pass
    Current protocol

    Negotiated 2025-06-18. The bar is 2025-06-18 or newer.

  • Pass
    HTTPS

    The endpoint URL is https.

Performance

  • Not measured
    Fast (p50)

    Median latency 173 ms over 2 samples in 7 days. The bar is 1000 ms. Need at least 5 samples.

  • Not measured
    Consistent (p95)

    95th percentile 175 ms over 2 samples in 7 days. The bar is 3000 ms. Need at least 20 samples.

  • Not measured
    Reliable (uptime)

    2 of 2 attempts returned a tool list in 30 days (100%). The bar is 99%. Need at least 30 samples.

  • Pass
    Stable tool list

    No tool was removed and no required parameter was added in the last 30 days.

Access

  • Pass
    Open access

    tools/list succeeded with no credential, and the record declares none.

  • Not measured
    Standard auth

    Auth is not required, so the OAuth metadata check does not apply.

  • Not measured
    Free tier cited

    No publisher quote has been checked.

Tools

  • Pass
    Tools described

    Every tool description is at least 20 characters.

  • Pass
    Valid input schemas

    Every inputSchema is a JSON Schema object.

  • Pass
    Parameters documented

    19 of 19 parameters have a description (100%). The bar is 80%.

  • Pass
    Safety hints

    Every tool sets readOnlyHint or destructiveHint.

Publisher

  • Pass
    Verified namespace

    Listed in the Official MCP Registry.

  • Pass
    Website matches publisher

    The website host matches the reverse-domain namespace.

  • Pass
    Source repo linked

    A repository URL is on file.

  • Not measured
    Repo owner matches

    This namespace is not an io.github login, so the owner comparison does not apply.

  • Pass
    Recently updated

    Updated 2026-11-10T06:14:23.371801Z, within 180 days.

  • Not measured
    Open-source licence

    The GitHub licence lookup has not returned an OSI result yet.

Start using CardWorthScanner — TCG Price, Centering & PSA Grading ROI Engine

Connect to this server

Choose your client, copy the configuration, then enable the server in your client’s MCP settings.

Run this command in your terminal, then restart Claude Code.

Claude Code

claude mcp add --transport http cardworthscanner-tcg-price-centering-psa-grading-roi-engine https://cardworthscanner.com/api/mcp

Capabilities

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.

Discovered
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.

Discovered
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.

Discovered
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.

Discovered
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.

Discovered
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.

Discovered
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.

Discovered
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").

Discovered

Recent measurements

Probe history

View status
Latest stored probes. Raw probe rows are kept for 14 days.
CheckedResultResponseTools
Connected175 ms8
Connected171 ms8

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