io.github.matthewdtowles/iwantmymtg-mcp
NPM · IWANTMYMTG-MCP
Query Magic: The Gathering cards, sets, and prices and manage your I Want My MTG collection.
Available components
Last scanned (15 hours ago)
Scores higher than 93% of npm servers
Category Entertainment and Games
How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. How we score → Why this is hard to score →
Supply Chain Security81
- No malware found by supply-chain analysis.Pass
- CVE check failed: a known high-severity CVE affects zod 3.25.76, a direct dependency. A fixed version is available. View diagnostics → Fail
- No install/post-install scripts declared.Pass
- 30 of 95 dependencies flagged as unhealthy. View diagnostics → Partial
Provenance & Transparency97
- Source repository is publicly reachable at the declared URL. View diagnostics → Pass
- Cryptographically verified build provenance (signed, bound to matthewdtowles/iwantmymtg-mcp). View diagnostics → Pass
- Clear OSI-approved license (MIT).Pass
- Actively maintained (last published 5 days ago).Pass
- Disclosure check failed: no security disclosure policy was found in the source repository. See how to fix → Fail
Schema Quality & AI Usability80
- AI-judged instruction clarity (excellent).Pass
- Tool/resource definitions use about 4565 tokens (~76/item across 60 items; 60 tools + 0 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management100
- No destabilizing schema changes in the last 30 days.Pass
Tool Coverage88
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 63% of tool parameters carry a description.Partial
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- All 7 tool(s) whose name or description implies an irreversible operation declare an MCP destructiveHint annotation.Pass
- An AI judge read all 60 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
Checks we ran (16)
- Malware scan
- Known CVEs
- Install scripts
- Dependency health
- Source repository
- Provenance
- License
- Maintenance
- Security disclosure
- Schema quality
- Stability
- Tool coverage
- Injection markers
- Destructive annotations
- Judged manipulation
- MCP protocol
Does not apply to this package (2)
- Endpoint SecurityScored on hosted endpoints only. A package has no live endpoint of its own for us to probe.
- Transport & ReachabilityScored on hosted endpoints only. A package has no live endpoint of its own for us to probe.
The score does not measure everything. What the score does not measure →
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 2 Nov 26 0
- Stability: 0.97 → pass security
- 1 Nov 26 0
- Stability: pass → 0.97 functional
- 31 Oct 26 +15
- Malware scan: unverified → pass ▲ security
- 30 Oct 26 −15
- Malware scan: pass → unverified ▼ security
- Package version: 0.7.0 → 0.7.5 functional
- 26 Oct 26 0
- Stability: 0.97 → pass security
- 25 Oct 26 0
- Stability: pass → 0.97 functional
- Package version: 0.6.9 → 0.7.0 functional
- 24 Oct 26 −5
- CVE-2023-54404 affects this package: high ▼ security
- Known CVEs: pass → fail ▼ security
- 19 Oct 26 0
- Stability: 0.97 → pass security
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 5 Nov 2026 · Analysed npm/iwantmymtg-mcp@0.7.5
Provenance Verified
A signed build attestation was found and verified, binding this exact artifact to the source repository it claims to come from.
| Result | Verified |
|---|---|
| Ecosystem | npm |
| Reason | Verified |
| Discovered via | Registry attestation endpoint |
| Source repo | matthewdtowles/iwantmymtg-mcp |
| Certificate issuer | https://token.actions.githubusercontent.com |
| Certificate SAN | https://github.com/matthewdtowles/iwantmymtg-mcp/.github/workflows/ci.yml@refs/heads/main |
| Rekor log index | 3598270328 |
| Predicate type | SLSA build provenance https://slsa.dev/provenance/v1 |
| Subject digest | sha512:ada50eefc76c6b72acac6a4763e6d5ebfb88901170cfaaa4cade48012d62b24e6dfcd6525b5baff28a7bc86336edd2b36c4dde3c31e5d476c2729d447 |
Background: How many MCP packages publish verified provenance →
Vulnerabilities 1 finding
| ID | CVE | Severity | Vector | Fix available |
|---|---|---|---|---|
| GHSA-mrhx-c7xc-m3w5 | CVE-2023-54404 | high | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | yes |
Background: What a vulnerability scan can and cannot prove →
Dependencies 95 packages
| Packages resolved | 95 |
|---|---|
| Stale | 30 |
| Tree resolution | Complete |
Background: SBOMs and build attestations, explained →
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
remove_sealed_inventory ~57
Remove a sealed product from the authenticated user's inventory entirely. Premium-gated. Requires IWMM_API_KEY.
| Name | Type | Req | Description |
|---|---|---|---|
| sealedProductUuid | string | yes | Sealed product UUID. Get it from get_sealed_products or get_sealed_product. |
No output schema declared.
No examples provided.
search_cards ~224
Search Magic: The Gathering cards by name (substring), set code, rarity, type, or format legality. Returns a paginated list with prices and basic metadata. Use this for catalog lookups; for a specific printing prefer get_card with set+number.
| Name | Type | Req | Description |
|---|---|---|---|
| format | string | – | Filter to cards with a legality entry in this format (e.g. 'modern', 'commander'). |
| legality | string | – | Used with 'format'. Defaults to 'legal' when format is set. |
| limit | integer | – | Page size (max 100). |
| page | integer | – | 1-based page index. |
| q | string | – | Substring to search card name + flavor name. Optional; omit to filter purely by setCode/rarity/type/format. |
| rarity | string | – | Filter by rarity. |
| setCode | string | – | 3-5 character set code (e.g. 'lea', 'mh3'). |
| type | string | – | Substring match against card type line (e.g. 'Goblin', 'Instant'). |
No output schema declared.
No examples provided.
search_sets ~48
List Magic: The Gathering sets, optionally paginated. Returns set code, name, release date, type, and aggregate prices.
| Name | Type | Req | Description |
|---|---|---|---|
| limit | integer | – | – |
| page | integer | – | – |
No output schema declared.
No examples provided.
set_deck_card_quantity ~134
Set the absolute quantity for a card + board in a deck (not a delta). A quantity of 0 removes the row. Use add_deck_card to increment instead. Requires IWMM_API_KEY.
| Name | Type | Req | Description |
|---|---|---|---|
| cardId | string | yes | Internal IWMM card UUID. Get from search_cards or get_card. |
| deckId | integer | yes | Deck id. Get from list_decks or create_deck. |
| isSideboard | boolean | yes | Which board the row belongs to. Mainboard and sideboard are separate rows. |
| quantity | integer | yes | Absolute quantity to set. 0 removes the row. |
No output schema declared.
No examples provided.
set_sealed_inventory ~102
Add or update a sealed product in the authenticated user's inventory by setting its absolute quantity (upserts the row for that product). This is a real write and is Premium-gated. Use remove_sealed_inventory to delete a row. Requires IWMM_API_KEY.
| Name | Type | Req | Description |
|---|---|---|---|
| quantity | integer | yes | Absolute quantity to set for this product. |
| sealedProductUuid | string | yes | Sealed product UUID. Get it from get_sealed_products or get_sealed_product. |
No output schema declared.
No examples provided.
update_buy_list ~115
Set the absolute quantity for a buy-list card+finish (not a delta). A quantity of 0 removes the row. Use add_buy_list to increment instead. Requires IWMM_API_KEY.
| Name | Type | Req | Description |
|---|---|---|---|
| cardId | string | yes | Internal IWMM card UUID. Get from search_cards or get_card. |
| isFoil | boolean | – | Whether this is the foil variant. Foil and non-foil are separate rows. Defaults to false. |
| quantity | integer | yes | Absolute quantity to set. 0 removes the row. |
No output schema declared.
No examples provided.
update_deck ~74
Rename a deck or change its format. Omitting format clears it. Requires IWMM_API_KEY.
| Name | Type | Req | Description |
|---|---|---|---|
| deckId | integer | yes | Deck id. Get from list_decks or create_deck. |
| format | string | – | Target format. Omit for no format. |
| name | string | yes | New deck name. |
No output schema declared.
No examples provided.
update_inventory ~45
Update quantities for one or more existing inventory rows. Accepts a batch. Use remove_inventory to delete a row entirely. Requires IWMM_API_KEY.
| Name | Type | Req | Description |
|---|---|---|---|
| items | array | yes | – |
No output schema declared.
No examples provided.
update_price_alert ~85
Update an existing price alert. Pass null for a threshold to clear it (Premium only - free users must keep exactly one direction). isActive toggles enable/disable without deleting. Requires IWMM_API_KEY.
| Name | Type | Req | Description |
|---|---|---|---|
| decreasePct | – | – | – |
| id | integer | yes | Alert ID from list_price_alerts. |
| increasePct | – | – | – |
| isActive | boolean | – | – |
No output schema declared.
No examples provided.
update_transaction ~106
Update an existing transaction by ID. Only the fields supplied are changed. Card identity and type (BUY/SELL) cannot be changed via this endpoint - delete and re-create instead. Requires IWMM_API_KEY.
| Name | Type | Req | Description |
|---|---|---|---|
| date | string | – | – |
| fees | number | – | – |
| id | integer | yes | Transaction ID from list_transactions. |
| notes | string | – | – |
| pricePerUnit | number | – | – |
| quantity | integer | – | – |
| source | string | – | – |
No output schema declared.
No examples provided.
How do I install the io.github.matthewdtowles/iwantmymtg-mcp server?
io.github.matthewdtowles/iwantmymtg-mcp runs locally as an npm package, launched with npx -y iwantmymtg-mcp. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
npm · iwantmymtg-mcp
claude mcp add matthewdtowles-iwantmymtg-mcp -- npx -y iwantmymtg-mcp
What is the io.github.matthewdtowles/iwantmymtg-mcp server?
io.github.matthewdtowles/iwantmymtg-mcp is listed in the public MCP registry as io.github.matthewdtowles/iwantmymtg-mcp. Query Magic: The Gathering cards, sets, and prices and manage your I Want My MTG collection. This page covers its npm package (iwantmymtg-mcp).
Is the io.github.matthewdtowles/iwantmymtg-mcp server safe to use?
io.github.matthewdtowles/iwantmymtg-mcp scores 89 out of 100 on VerifyMCP. We recorded 1 known advisory against it as of 5 November 2026. It declares no install or post-install scripts. Its build provenance is signed and verified. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
What tools does the io.github.matthewdtowles/iwantmymtg-mcp server expose?
io.github.matthewdtowles/iwantmymtg-mcp exposes 60 tools: search_cards, get_card, get_card_prices, get_card_price_history, get_card_printings, and 55 more. Their descriptions and schemas cost roughly 4,565 tokens of context every time the server is loaded.
Is the io.github.matthewdtowles/iwantmymtg-mcp server still maintained?
io.github.matthewdtowles/iwantmymtg-mcp is still listed as active in the MCP registry. We last reached this channel on 5 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.
What licence is the io.github.matthewdtowles/iwantmymtg-mcp server under?
io.github.matthewdtowles/iwantmymtg-mcp declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.
What did VerifyMCP test on the io.github.matthewdtowles/iwantmymtg-mcp server?
VerifyMCP ran 16 checks on io.github.matthewdtowles/iwantmymtg-mcp, covering Malware scan, Known CVEs, Install scripts, Dependency health and 12 more. Endpoint Security and Transport & Reachability do not apply to an npm package, so they were not tested. The score does not measure everything, and the scoring documentation lists what it leaves out.