A .NET global tool that wires MCP clients into the Magic: The Gathering deckbuilding ecosystem. You get Scryfall card search and rulings, local deck workspaces with edit plans and validation, Moxfield imports that preserve boards and tags, Archidekt writeback with checkpoint management, Playgroup.gg meta analysis and power rankings, Commander Spellbook combo detection, and goldfish simulation with board state projection. Ships with three operation modes: read-only for lookup, plan for staged edits, and apply for writeback. Credentials live in separate JSON files. Useful when you want an LLM to suggest swaps under budget, analyze mana curves, find combos in your 99, or rank playgroup decks by win rate without switching between browser tabs.
Public tool metadata for what this MCP can expose to an agent.
pingHealth check — returns 'pong'.Health check — returns 'pong'.
No parameter schema in public metadata yet.
scryfall_search_cardsSearch for Magic cards using Scryfall syntax. Examples: "f:commander id:sultai t:creature", "o:destroy t:instant cmc<=3" See https://scryfall.com/docs/syntax for full syntax reference.4 paramsSearch for Magic cards using Scryfall syntax. Examples: "f:commander id:sultai t:creature", "o:destroy t:instant cmc<=3" See https://scryfall.com/docs/syntax for full syntax reference.
pageintegerlimitintegerquerystringresponse_formatstringdetailed · concisedefault: detailedscryfall_card_detailsGet full details for a Magic card by exact or fuzzy name.3 paramsGet full details for a Magic card by exact or fuzzy name.
namestringfuzzybooleanresponse_formatstringdetailed · concisedefault: detailedscryfall_card_priceGet current prices for a Magic card. Prices update once per day.1 paramsGet current prices for a Magic card. Prices update once per day.
namestringscryfall_card_rulingsGet official rulings and clarifications for a Magic card.1 paramsGet official rulings and clarifications for a Magic card.
namestringscryfall_set_infoGet metadata for a Magic set by its code.1 paramsGet metadata for a Magic set by its code.
set_codestringscryfall_whats_newFind recently printed or released Magic cards. Searches Scryfall for cards released within the given number of days. Optionally filter by set or format legality.5 paramsFind recently printed or released Magic cards. Searches Scryfall for cards released within the given number of days. Optionally filter by set or format legality.
daysintegerlimitintegerformatvalueset_codevalueresponse_formatstringdetailed · concisedefault: detailedspellbook_find_combosSearch for known combos involving a specific card. Optionally filter by color identity (e.g. "sultai", "BUG", "wubrg"). Returns up to `limit` combos with cards involved and results produced.3 paramsSearch for known combos involving a specific card. Optionally filter by color identity (e.g. "sultai", "BUG", "wubrg"). Returns up to `limit` combos with cards involved and results produced.
limitintegercard_namestringcolor_identityvaluespellbook_combo_detailsGet detailed steps for a specific combo by its Spellbook ID. Use an ID from find_combos results (e.g. "1414-2730-5131-5256").1 paramsGet detailed steps for a specific combo by its Spellbook ID. Use an ID from find_combos results (e.g. "1414-2730-5131-5256").
combo_idstringspellbook_find_decklist_combosFind combos present in (or nearly present in) a Commander decklist. Provide commander name(s) and a list of card names in the main deck. Returns combos that are fully included and those that are almost included.2 paramsFind combos present in (or nearly present in) a Commander decklist. Provide commander name(s) and a list of card names in the main deck. Returns combos that are fully included and those that are almost included.
decklistarraycommandersarrayspellbook_estimate_bracketEstimate the Commander bracket (power level) for a decklist. Provide commander name(s) and a list of card names in the main deck. Returns bracket tag and any bracket-relevant findings.2 paramsEstimate the Commander bracket (power level) for a decklist. Provide commander name(s) and a list of card names in the main deck. Returns bracket tag and any bracket-relevant findings.
decklistarraycommandersarraydraft_card_ratingsGet win rate and draft performance data for cards in a set. Key metrics: GIH WR (ever_drawn_win_rate), ALSA (avg_seen), OH WR (opening_hand_win_rate), IWD (drawn_improvement_win_rate). Note: 17Lands data skews toward above-average players (~56% baseline WR). Cards with <500 ga...5 paramsGet win rate and draft performance data for cards in a set. Key metrics: GIH WR (ever_drawn_win_rate), ALSA (avg_seen), OH WR (opening_hand_win_rate), IWD (drawn_improvement_win_rate). Note: 17Lands data skews toward above-average players (~56% baseline WR). Cards with <500 ga...
limitintegersort_bystringset_codestringevent_typestringresponse_formatstringdetailed · concisedefault: detaileddraft_archetype_statsGet win rates by color pair/archetype for a draft set. Note: start_date and end_date are required by the 17Lands API. Args: set_code: Three-letter set code (e.g. "LCI", "MKM", "OTJ"). start_date: Start date in YYYY-MM-DD format. end_date: End date in YYYY-MM-DD format. event_t...4 paramsGet win rates by color pair/archetype for a draft set. Note: start_date and end_date are required by the 17Lands API. Args: set_code: Three-letter set code (e.g. "LCI", "MKM", "OTJ"). start_date: Start date in YYYY-MM-DD format. end_date: End date in YYYY-MM-DD format. event_t...
end_datestringset_codestringevent_typestringstart_datestringedhrec_commander_staplesGet the most-played cards for a commander with synergy scores and inclusion rates. Shows which cards are most commonly played with this commander and how synergistic they are (vs. generic popularity).4 paramsGet the most-played cards for a commander with synergy scores and inclusion rates. Shows which cards are most commonly played with this commander and how synergistic they are (vs. generic popularity).
limitintegercategoryvaluecommander_namestringresponse_formatstringdetailed · concisedefault: detailededhrec_card_synergyGet synergy data for a specific card with a specific commander. Shows how synergistic the card is with the commander compared to its general popularity, plus how many decks include it. Args: card_name: The card to check (e.g. "Spore Frog"). commander_name: The commander to che...2 paramsGet synergy data for a specific card with a specific commander. Shows how synergistic the card is with the commander compared to its general popularity, plus how many decks include it. Args: card_name: The card to check (e.g. "Spore Frog"). commander_name: The commander to che...
card_namestringcommander_namestringmoxfield_decklistFetch a full decklist from Moxfield by deck ID or URL. Returns the complete decklist organized by board (commanders, mainboard, sideboard, companions) with card names and quantities.1 paramsFetch a full decklist from Moxfield by deck ID or URL. Returns the complete decklist organized by board (commanders, mainboard, sideboard, companions) with card names and quantities.
deck_idstringmoxfield_deck_infoGet metadata for a Moxfield deck (name, format, author, dates). Returns deck metadata without the full card list. Use ``decklist`` for the complete card list.1 paramsGet metadata for a Moxfield deck (name, format, author, dates). Returns deck metadata without the full card list. Use ``decklist`` for the complete card list.
deck_idstringmoxfield_search_decksSearch public Moxfield decks by format, keyword, or sort order. Returns a paginated list of deck summaries with name, format, author, colors, and card counts.5 paramsSearch public Moxfield decks by format, keyword, or sort order. Returns a paginated list of deck summaries with name, format, author, colors, and card counts.
pageintegersortstringqueryvalueformatvaluepage_sizeintegermoxfield_user_decksList a user's public decks on Moxfield. Verifies the user exists, then searches for their public decks. Optionally filter by format.2 paramsList a user's public decks on Moxfield. Verifies the user exists, then searches for their public decks. Optionally filter by format.
formatvalueusernamestringbulk_card_lookupLook up a Magic card by exact name using Scryfall bulk data. Returns full card details including mana cost, type, oracle text, colors, power/toughness, prices, legalities, and EDHREC rank. Case-insensitive.2 paramsLook up a Magic card by exact name using Scryfall bulk data. Returns full card details including mana cost, type, oracle text, colors, power/toughness, prices, legalities, and EDHREC rank. Case-insensitive.
namestringresponse_formatstringdetailed · concisedefault: detailedbulk_card_searchSearch for Magic cards in Scryfall bulk data. Args: query: Substring to search for (case-insensitive). search_field: Field to search in -- "name", "type", or "text". limit: Maximum number of results to return (default 20).4 paramsSearch for Magic cards in Scryfall bulk data. Args: query: Substring to search for (case-insensitive). search_field: Field to search in -- "name", "type", or "text". limit: Maximum number of results to return (default 20).
limitintegerquerystringsearch_fieldstringname · type · textdefault: nameresponse_formatstringdetailed · concisedefault: detailedbulk_format_legalityBatch legality check for cards in a specific format. Returns a markdown table showing the legality status of each card in the specified format. Handles common format aliases (e.g. 'edh' for 'commander').2 paramsBatch legality check for cards in a specific format. Returns a markdown table showing the legality status of each card in the specified format. Handles common format aliases (e.g. 'edh' for 'commander').
cardsarrayformatstringbulk_format_searchSearch for legal cards in a specific format using natural language. Combines format legality filtering with name/type/text search and optional color identity, price, and rarity constraints. Results are sorted by EDHREC rank (most popular first).7 paramsSearch for legal cards in a specific format using natural language. Combines format legality filtering with name/type/text search and optional color identity, price, and rarity constraints. Results are sorted by EDHREC rank (most popular first).
limitintegerquerystringformatstringrarityvaluemax_pricevaluecolor_identityvalueresponse_formatstringdetailed · concisedefault: detailedbulk_format_staplesFind the most popular (staple) cards legal in a format. Ranking adapts to the format: singleton formats (Commander, Brawl, Oathbreaker) use EDHREC rank; competitive formats use MTGGoldfish tournament frequency when available, falling back to a mana-efficiency heuristic.6 paramsFind the most popular (staple) cards legal in a format. Ranking adapts to the format: singleton formats (Commander, Brawl, Oathbreaker) use EDHREC rank; competitive formats use MTGGoldfish tournament frequency when available, falling back to a mana-efficiency heuristic.
colorvaluelimitintegerformatstringcard_typevalueranking_modestringauto · edhrec · competitive · tournamentdefault: autoresponse_formatstringdetailed · concisedefault: detailedbulk_similar_cardsFind cards similar to a given card. Scores similarity based on shared keywords, type words, CMC proximity, and oracle text overlap. Optionally filter by format legality and price.5 paramsFind cards similar to a given card. Scores similarity based on shared keywords, type words, CMC proximity, and oracle text overlap. Optionally filter by format legality and price.
limitintegerformatvaluecard_namestringmax_pricevalueresponse_formatstringdetailed · concisedefault: detailedbulk_random_cardGet a random Magic card, optionally filtered by format, color, type, and rarity. Returns full card details in the same format as card_lookup.4 paramsGet a random Magic card, optionally filtered by format, color, type, and rarity. Returns full card details in the same format as card_lookup.
formatvaluerarityvaluecard_typevaluecolor_identityvaluebulk_ban_listGet the banned and restricted cards for a format. Returns alphabetically sorted lists of banned and restricted cards, including their type lines.1 paramsGet the banned and restricted cards for a format. Returns alphabetically sorted lists of banned and restricted cards, including their type lines.
formatstringbulk_card_in_formatsShow a card's legality across all Magic formats. Returns a table with the card's legality status in each format, ordered with the most common formats first.1 paramsShow a card's legality across all Magic formats. Returns a table with the card's legality status in each format, ordered with the most common formats first.
card_namestringspicerack_recent_tournamentsList recent tournaments for a format with dates, player counts, and IDs. Use the tournament ID from the results with ``tournament_results`` to see full standings and decklists.4 paramsList recent tournaments for a format with dates, player counts, and IDs. Use the tournament ID from the results with ``tournament_results`` to see full standings and decklists.
limitintegerformatstringnum_daysintegerresponse_formatstringdetailed · concisedefault: detailedspicerack_tournament_resultsGet full standings and decklists for a specific tournament. Look up a tournament by its Spicerack ID. Use ``recent_tournaments`` first to find tournament IDs.5 paramsGet full standings and decklists for a specific tournament. Look up a tournament by its Spicerack ID. Use ``recent_tournaments`` first to find tournament IDs.
top_nintegerformatvaluenum_daysintegertournament_idstringresponse_formatstringdetailed · concisedefault: detailedspicerack_format_decklistsFind top-performing decklists across recent tournaments for a format. Collects top-4 finishers with Moxfield decklists from recent events. Use ``moxfield_decklist`` to fetch the full card list for a deck.4 paramsFind top-performing decklists across recent tournaments for a format. Collects top-4 finishers with Moxfield decklists from recent events. Use ``moxfield_decklist`` to fetch the full card list for a deck.
limitintegerformatstringnum_daysintegerresponse_formatstringdetailed · concisedefault: detailedgoldfish_metagameGet the current metagame breakdown for a competitive format. Shows top archetypes with meta share percentages, deck counts, and estimated paper prices.2 paramsGet the current metagame breakdown for a competitive format. Shows top archetypes with meta share percentages, deck counts, and estimated paper prices.
formatstringresponse_formatstringdetailed · concisedefault: detailedgoldfish_archetype_listGet a sample decklist for an archetype in a format. Returns deck metadata (author, event, result, date) and the full mainboard and sideboard card list.3 paramsGet a sample decklist for an archetype in a format. Returns deck metadata (author, event, result, date) and the full mainboard and sideboard card list.
formatstringarchetypestringresponse_formatstringdetailed · concisedefault: detailedgoldfish_format_staplesGet the most-played cards in a format with deck inclusion percentages. Shows which cards appear most frequently across all archetypes in the format, with average copies played per deck.3 paramsGet the most-played cards in a format with deck inclusion percentages. Shows which cards appear most frequently across all archetypes in the format, with average copies played per deck.
limitintegerformatstringresponse_formatstringdetailed · concisedefault: detailedgoldfish_deck_priceGet the estimated paper price for an archetype deck. Returns the total estimated cost of the deck based on current card prices from MTGGoldfish.3 paramsGet the estimated paper price for an archetype deck. Returns the total estimated cost of the deck based on current card prices from MTGGoldfish.
formatstringarchetypestringresponse_formatstringdetailed · concisedefault: detailedcommander_overviewComprehensive commander profile combining data from all available sources. Returns card details, top combos, EDHREC staples, and synergy scores. Degrades gracefully if optional sources (EDHREC, Spellbook) are unavailable.2 paramsComprehensive commander profile combining data from all available sources. Returns card details, top combos, EDHREC staples, and synergy scores. Degrades gracefully if optional sources (EDHREC, Spellbook) are unavailable.
commander_namestringresponse_formatstringdetailed · concisedefault: detailedevaluate_upgradeAssess whether a card is worth adding to a specific commander deck. Returns card details, price, synergy score, and combos enabled for the caller to assess. Degrades gracefully if optional sources (EDHREC, Spellbook) are unavailable.3 paramsAssess whether a card is worth adding to a specific commander deck. Returns card details, price, synergy score, and combos enabled for the caller to assess. Degrades gracefully if optional sources (EDHREC, Spellbook) are unavailable.
card_namestringcommander_namestringresponse_formatstringdetailed · concisedefault: detaileddraft_pack_pickRank cards in a draft pack using 17Lands win rate data. Provides GIH WR, ALSA, IWD stats, and color fit analysis based on current picks. Requires 17Lands to be enabled.4 paramsRank cards in a draft pack using 17Lands win rate data. Provides GIH WR, ALSA, IWD stats, and color fit analysis based on current picks. Requires 17Lands to be enabled.
packarrayset_codestringcurrent_picksvalueresponse_formatstringdetailed · concisedefault: detailedsuggest_cutsIdentify the weakest cards to cut from a commander decklist. Scores cards by synergy, inclusion rate, and combo membership. Degrades gracefully if EDHREC or Spellbook backends fail (uses whatever data is available).4 paramsIdentify the weakest cards to cut from a commander decklist. Scores cards by synergy, inclusion rate, and combo membership. Degrades gracefully if EDHREC or Spellbook backends fail (uses whatever data is available).
decklistarraynum_cutsintegercommander_namestringresponse_formatstringdetailed · concisedefault: detailedcard_comparisonCompare 2-5 cards side-by-side for a specific commander deck. Shows mana cost, type, synergy, inclusion rate, combo count, and price for each card. Scryfall and Spellbook required; EDHREC optional.3 paramsCompare 2-5 cards side-by-side for a specific commander deck. Shows mana cost, type, synergy, inclusion rate, combo count, and price for each card. Scryfall and Spellbook required; EDHREC optional.
cardsarraycommander_namestringresponse_formatstringdetailed · concisedefault: detailedbudget_upgradeSuggest budget-friendly upgrades for a commander deck. Ranks EDHREC staples by synergy-per-dollar within the given budget ceiling. Requires EDHREC (for staples) and Scryfall (for prices).4 paramsSuggest budget-friendly upgrades for a commander deck. Ranks EDHREC staples by synergy-per-dollar within the given budget ceiling. Requires EDHREC (for staples) and Scryfall (for prices).
budgetnumbercommander_namestringnum_suggestionsintegerresponse_formatstringdetailed · concisedefault: detaileddeck_analysisFull decklist health check — mana curve, colors, combos, bracket, budget, synergy. Uses all available backends: Scryfall bulk data for rate-limit-free card resolution, Scryfall API as fallback, Spellbook for combos and bracket estimation, EDHREC for synergy scores. Degrades gr...3 paramsFull decklist health check — mana curve, colors, combos, bracket, budget, synergy. Uses all available backends: Scryfall bulk data for rate-limit-free card resolution, Scryfall API as fallback, Spellbook for combos and bracket estimation, EDHREC for synergy scores. Degrades gr...
decklistarraycommander_namestringresponse_formatstringdetailed · concisedefault: detailedset_overviewDraft format overview — top commons/uncommons and trap rares. Uses 17Lands card ratings to provide a data-driven format breakdown. Requires 17Lands to be enabled.3 paramsDraft format overview — top commons/uncommons and trap rares. Uses 17Lands card ratings to provide a data-driven format breakdown. Requires 17Lands to be enabled.
set_codestringevent_typestringresponse_formatstringdetailed · concisedefault: detailedtheme_searchFind cards matching a theme — mechanical, tribal, or abstract/flavorful. Maps themes to oracle text patterns and searches bulk data. Groups results by relevance tier (strong match, moderate match, flavor match).6 paramsFind cards matching a theme — mechanical, tribal, or abstract/flavorful. Maps themes to oracle text patterns and searches bulk data. Groups results by relevance tier (strong match, moderate match, flavor match).
limitintegerthemestringformatvaluemax_pricevaluecolor_identityvalueresponse_formatstringdetailed · concisedefault: detailedbuild_aroundFind synergistic cards for 1-5 build-around cards in any format. Analyzes oracle text for key mechanics, searches for synergies, and checks combo potential. Groups results by role (enablers, payoffs, support).5 paramsFind synergistic cards for 1-5 build-around cards in any format. Analyzes oracle text for key mechanics, searches for synergies, and checks combo potential. Groups results by role (enablers, payoffs, support).
cardsarraylimitintegerbudgetvalueformatstringresponse_formatstringdetailed · concisedefault: detailedcomplete_deckIdentify gaps in a partial decklist and suggest cards to fill them. Analyzes mana curve, card roles, and format-specific ratios, then suggests cards for underrepresented categories.5 paramsIdentify gaps in a partial decklist and suggest cards to fill them. Analyzes mana curve, card roles, and format-specific ratios, then suggests cards for underrepresented categories.
budgetvalueformatstringdecklistarraycommandervalueresponse_formatstringdetailed · concisedefault: detailedcommander_comparisonCompare 2-5 commanders head-to-head: stats, combos, staples, popularity. Side-by-side comparison table with mana cost, color identity, EDHREC rank, combo count, and shared/unique staples.2 paramsCompare 2-5 commanders head-to-head: stats, combos, staples, popularity. Side-by-side comparison table with mana cost, color identity, EDHREC rank, combo count, and shared/unique staples.
commandersarrayresponse_formatstringdetailed · concisedefault: detailedtribal_staplesBest cards for a creature type — lords, synergy pieces, and top members. Groups results by: lords/anthems, tribal synergy, best members, tribal support.5 paramsBest cards for a creature type — lords, synergy pieces, and top members. Groups results by: lords/anthems, tribal synergy, best members, tribal support.
limitintegertribestringformatvaluecolor_identityvalueresponse_formatstringdetailed · concisedefault: detailedprecon_upgradeAnalyze and upgrade a Commander precon — identify weakest cards, suggest replacements. Pairs each upgrade with a specific cut, explaining the synergy improvement.5 paramsAnalyze and upgrade a Commander precon — identify weakest cards, suggest replacements. Pairs each upgrade with a specific cut, explaining the synergy improvement.
budgetnumberdecklistarraycommanderstringnum_upgradesintegerresponse_formatstringdetailed · concisedefault: detailedcolor_identity_staplesTop cards across ALL commanders in a color identity. Uses EDHREC aggregated data when available, falls back to EDHREC rank from bulk data.4 paramsTop cards across ALL commanders in a color identity. Uses EDHREC aggregated data when available, falls back to EDHREC rank from bulk data.
limitintegercategoryvaluecolor_identitystringresponse_formatstringdetailed · concisedefault: detailedsealed_pool_buildBuild 1-3 decks from a sealed pool using card quality and color pair analysis. Evaluates each 2-color pair, selects best cards, and suggests land splits. Uses 17Lands data when available for card quality scoring.3 paramsBuild 1-3 decks from a sealed pool using card quality and color pair analysis. Evaluates each 2-color pair, selects best cards, and suggests land splits. Uses 17Lands data when available for card quality scoring.
poolarrayset_codestringresponse_formatstringdetailed · concisedefault: detaileddraft_signal_readAnalyze draft picks and recommend a direction based on color signals. Uses ALSA data to detect which colors are open (cards seen later than expected = open).4 paramsAnalyze draft picks and recommend a direction based on color signals. Uses ALSA data to detect which colors are open (cards seen later than expected = open).
picksarrayset_codestringcurrent_packvalueresponse_formatstringdetailed · concisedefault: detaileddraft_log_reviewReview a completed draft — pick-by-pick GIH WR analysis and key decision points. Identifies where you could have taken a higher-WR card, pivot points, and overall draft grade.4 paramsReview a completed draft — pick-by-pick GIH WR analysis and key decision points. Identifies where you could have taken a higher-WR card, pivot points, and overall draft grade.
picksarrayset_codestringfinal_deckvalueresponse_formatstringdetailed · concisedefault: detailedrotation_checkCheck Standard rotation status and identify which cards are rotating. Shows sets currently in Standard with rotation dates. If cards provided, identifies which are in rotating sets and suggests replacements.2 paramsCheck Standard rotation status and identify which cards are rotating. Shows sets currently in Standard with rotation dates. If cards provided, identifies which are in rotating sets and suggests replacements.
cardsvalueresponse_formatstringdetailed · concisedefault: detailedmetagame_snapshotGet the current metagame breakdown for a competitive format. Shows top archetypes with meta share %, tier classification, and prices. Uses MTGGoldfish as primary source with Spicerack tournament data as fallback.2 paramsGet the current metagame breakdown for a competitive format. Shows top archetypes with meta share %, tier classification, and prices. Uses MTGGoldfish as primary source with Spicerack tournament data as fallback.
formatstringresponse_formatstringdetailed · concisedefault: detailedarchetype_decklistGet the stock decklist for a competitive archetype. Returns a full decklist (mainboard + sideboard) with deck metadata and total price when available. Archetype name is fuzzy-matched.3 paramsGet the stock decklist for a competitive archetype. Returns a full decklist (mainboard + sideboard) with deck metadata and total price when available. Archetype name is fuzzy-matched.
formatstringarchetypestringresponse_formatstringdetailed · concisedefault: detailedarchetype_comparisonCompare 2-4 competitive archetypes side-by-side. Shows price, colors, key cards, shared staples, and differences.3 paramsCompare 2-4 competitive archetypes side-by-side. Shows price, colors, key cards, shared staples, and differences.
formatstringarchetypesarrayresponse_formatstringdetailed · concisedefault: detailedformat_entry_guideGet a beginner-oriented guide for entering a competitive format. Shows archetypes sorted by budget accessibility, cross-archetype staples (buy once, play everywhere), and format rules summary.3 paramsGet a beginner-oriented guide for entering a competitive format. Shows archetypes sorted by budget accessibility, cross-archetype staples (buy once, play everywhere), and format rules summary.
budgetvalueformatstringresponse_formatstringdetailed · concisedefault: detailedsuggest_sideboardSuggest a 15-card sideboard for a competitive deck. Analyzes the main deck's weaknesses and recommends sideboard cards with per-card reasoning. Works with heuristic analysis alone; enhanced with MTGGoldfish frequency data when available.4 paramsSuggest a 15-card sideboard for a competitive deck. Analyzes the main deck's weaknesses and recommends sideboard cards with per-card reasoning. Works with heuristic analysis alone; enhanced with MTGGoldfish frequency data when available.
formatstringdecklistarraymeta_contextvalueresponse_formatstringdetailed · concisedefault: detailedsideboard_guideGet a specific sideboard in/out plan for a named matchup. Given a full 75 and a matchup archetype, produces specific boarding instructions with reasoning.5 paramsGet a specific sideboard in/out plan for a named matchup. Given a full 75 and a matchup archetype, produces specific boarding instructions with reasoning.
formatstringmatchupstringdecklistarraysideboardarrayresponse_formatstringdetailed · concisedefault: detailedsideboard_matrixGenerate a sideboard matrix for a deck across common matchups. Matrix shows which sideboard cards come IN/OUT/FLEX for each matchup. Auto-detects top matchups from metagame data or uses provided matchup list.5 paramsGenerate a sideboard matrix for a deck across common matchups. Matrix shows which sideboard cards come IN/OUT/FLEX for each matchup. Auto-detects top matchups from metagame data or uses provided matchup list.
formatstringdecklistarraymatchupsvaluesideboardarrayresponse_formatstringdetailed · concisedefault: detaileddeck_validateValidate a decklist against a format's construction rules. Checks legality, deck size, copy limits, color identity (Commander), singleton rules, and Pauper rarity. Returns VALID or INVALID with actionable error messages.5 paramsValidate a decklist against a format's construction rules. Checks legality, deck size, copy limits, color identity (Commander), singleton rules, and Pauper rarity. Returns VALID or INVALID with actionable error messages.
formatstringdecklistarraycommandervaluesideboardvalueresponse_formatstringdetailed · concisedefault: detailedsuggest_mana_baseSuggest a mana base for a decklist based on color pip distribution. Analyzes color requirements, recommends land count, and suggests format-legal dual lands. Handles hybrid and phyrexian mana.4 paramsSuggest a mana base for a decklist based on color pip distribution. Analyzes color requirements, recommends land count, and suggests format-legal dual lands. Handles hybrid and phyrexian mana.
formatstringdecklistarraytotal_landsvalueresponse_formatstringdetailed · concisedefault: detailedprice_comparisonCompare prices across multiple cards using Scryfall bulk data. Returns a markdown table with USD, USD foil, and EUR prices sorted by USD descending.2 paramsCompare prices across multiple cards using Scryfall bulk data. Returns a markdown table with USD, USD foil, and EUR prices sorted by USD descending.
cardsarrayresponse_formatstringdetailed · concisedefault: detailedrules_lookupLook up MTG Comprehensive Rules by number or keyword search. Returns matching rules with full text, parent context, and subrules.3 paramsLook up MTG Comprehensive Rules by number or keyword search. Returns matching rules with full text, parent context, and subrules.
querystringsectionvalueresponse_formatstringdetailed · concisedefault: detailedkeyword_explainExplain an MTG keyword with rules text, examples, and interactions. Returns the rules definition, reminder text, and up to 5 example cards from bulk data.2 paramsExplain an MTG keyword with rules text, examples, and interactions. Returns the rules definition, reminder text, and up to 5 example cards from bulk data.
keywordstringresponse_formatstringdetailed · concisedefault: detailedrules_interactionExplain how two mechanics or cards interact under MTG rules. Returns relevant rules, step-by-step resolution, and common misconceptions.3 paramsExplain how two mechanics or cards interact under MTG rules. Returns relevant rules, step-by-step resolution, and common misconceptions.
mechanic_astringmechanic_bstringresponse_formatstringdetailed · concisedefault: detailedrules_scenarioResolve a game scenario step-by-step using MTG rules. Covers priority, stack resolution, state-based actions, and triggers with rule citations.2 paramsResolve a game scenario step-by-step using MTG rules. Covers priority, stack resolution, state-based actions, and triggers with rule citations.
scenariostringresponse_formatstringdetailed · concisedefault: detailedcombat_calculatorCalculate combat step-by-step with keyword interactions. Resolves declare attackers → declare blockers → damage steps → state-based actions. Looks up card keywords from bulk data if card names are provided.4 paramsCalculate combat step-by-step with keyword interactions. Resolves declare attackers → declare blockers → damage steps → state-based actions. Looks up card keywords from bulk data if card names are provided.
blockersarraykeywordsvalueattackersarrayresponse_formatstringdetailed · concisedefault: detailedmtg-mcp gives an LLM grounded Magic: The Gathering card, deck, provider, and
statistical evidence. The LLM makes deckbuilding decisions.
The clean-break 0.9.0 server uses stdio. It exposes 93 tools, one
capability resource, and no prompts. It does not migrate 0.8.x data or tool
schemas.
The evidence-first rewrite is complete. 0.9.0 is the first stable release of
the new surface.
| Capability | Tools | Default | Writes |
|---|---|---|---|
| Local decks and interchange | 28 | Yes | Local |
| Scryfall evidence | 18 | Yes | Local cache and corpus |
| Exact statistics | 8 | Yes | No |
| Archidekt | 23 | No | Remote |
| Playgroup | 16 | No | Remote |
The packaged acceptance run passed 88 tools live. Two Scryfall corpus operations are fixture-backed, Scryfall rollback awaits a second provider generation, and two Playgroup writes remain fixture-only because the public API has no cleanup. See live acceptance.
Bootstrap the repository, then run the MCP smoke test:
.\bootstrap.ps1
task smoke:mcp
On Linux or macOS:
./bootstrap.sh
task smoke:mcp
Use mtg-mcp as the MCP command. The default invocation is equivalent to:
mtg-mcp --mode=local --toolsets=default
Use --smoke for a one-shot configuration check. It does not start an MCP
session.
Modes control authority.
| Mode | Reads | Local writes | Remote writes |
|---|---|---|---|
read-only | Yes | No | No |
local | Yes | Yes | No |
remote | Yes | Yes | Yes |
local is the default. Scryfall cache misses can require a local write for
pacing and evidence persistence. In read-only, those misses return
local-write-required before HTTP.
Toolsets control relevance. They do not grant authority.
| Value | Result |
|---|---|
default or omitted | Enable decks, scryfall, and stats |
all | Enable every implemented toolset |
none | Expose no tools |
| Comma-separated list | Enable the exact named toolsets |
Available toolsets are decks, scryfall, stats, archidekt, and
playgroup. Selection is fixed for the MCP session.
| Profile | read-only | local | remote |
|---|---|---|---|
default | 32 | 54 | 54 |
all | 57 | 80 | 93 |
none | 0 | 0 | 0 |
Read mtg://server/capabilities to inspect the active mode, toolsets, counts,
credential state, package version, and data-store state. Reading the resource
does not contact a provider.
Pass configuration on the command line, in environment variables, or in an
optional mtg-mcp.json in the working directory. Command-line values win over
environment values. Environment values win over JSON.
| Setting | Command line | Environment | JSON key |
|---|---|---|---|
| Operation mode | --mode | MTGMCP__MODE | MODE |
| Toolsets | --toolsets | MTGMCP__TOOLSETS | TOOLSETS |
| Data root | --data-dir | MTGMCP__DATA_DIR | DATA_DIR |
| Scryfall TTL | --scryfall-ttl-hours | MTGMCP__SCRYFALL_TTL_HOURS | SCRYFALL_TTL_HOURS |
The default data root is the platform application-data directory under
mtg-mcp/v0.9. All MCP processes that use the same root reuse decks.db and
scryfall.db. Reads do not create the root.
Use MTGMCP__ARCHIDEKT__USERNAME and MTGMCP__ARCHIDEKT__PASSWORD, or create:
~/.mtg-mcp/archidekt.json
The provider origin is fixed. Authentication output never contains credentials, account identity, or a credential path.
Use MTGMCP__PLAYGROUP__API_KEY, or create:
~/.mtg-mcp/playgroup.json
The file contains one apiKey property. The provider origin is fixed to the
official public API.
The decks toolset supports:
Every existing-deck mutation requires expectedRevision. The store is
format-neutral. Validation checks structure, not Commander legality, card
quality, or strategic fit.
Use deck_identity_reconcile_preview before apply. Resolution uses printing ID,
set and collector number, Oracle ID, then exact name. It never uses fuzzy
matching or selects an arbitrary printing.
Use deck_category_rules_validate, deck_category_rules_preview, and
deck_category_rules_apply to evaluate caller-owned tag rules. Rules can be
inline or use the transparent common-v1 preset. The MCP does not decide what a
category means.
Use deck_interchange_formats to inspect preservation limits.
| Format | Notes |
|---|---|
mtg-mcp-json-v1 | Lossless native format |
generic-text-v1 | Quantity, name, zone headings, and printing hints |
archidekt-text-v1 | Manual import plus native/category companions |
moxfield-bulk-edit-v1 | Bulk Edit text plus native/tag companions |
Provider artifacts do not perform network automation. Excluded entries remain in the native companion and are omitted from provider text.
The scryfall toolset supports search, exact card lookup, collection lookup,
prints, rulings, sets, catalogs, autocomplete, bulk metadata, tag evidence,
immutable snapshots, and explicit corpus lifecycle operations.
The local corpus contains All Cards, Rulings, Oracle Tags, and Art Tags. Corpus sync is explicit. It never runs at startup or in the background.
Freshness policies are default, cache-only, and refresh. The default TTL
is 24 hours. Immutable snapshots do not expire.
scryfall_card_collection accepts 150 ordered lookup rows. It uses local corpus
hits first, deduplicates provider misses, and sends provider batches of at most
75. Results use stable cursor pagination.
Arbitrary Scryfall queries remain provider-authoritative. The cache reuses only the exact same request. Card facts and community tags remain separate evidence classes.
The stats toolset provides eight read-only tools for:
Every probability returns an exact reduced fraction and a stable decimal. The caller supplies the population, groups, turn draws, mana capabilities, and keep rules. The MCP does not infer legality, roles, or whether a result is good.
Deck-backed statistics can select entries by entry ID, zone name, or category ID. This lets an LLM use existing Archidekt groups or deterministic categories without hiding the selected cards.
Enable the archidekt toolset. Use remote mode for remote writes.
The adapter supports owned deck list/get/create/delete, pull, push, diff, folders, and named snapshots. Apply operations require current revisions, fingerprints, and preview evidence. The MCP never chooses a conflict winner.
Requests start at least two seconds apart per configured account. The adapter
allows at most 30 starts in 60 seconds and 150 requests per tool invocation.
It stops on 403 and 429. Ambiguous mutations are not retried.
Archidekt may renumber category positions. Content equality therefore compares category identity, membership, flags, and primary assignment, not the provider-controlled numeric rank.
Enable the playgroup toolset. It exposes the pinned Public API 1.0.0 surface.
All modes include 14 safe read tools. remote adds two write tools.
Results preserve provider JSON and include operation, API version, retrieval time, checksums, and limitations. The adapter does not rank decks or infer quality.
Request starts are at least 250 milliseconds apart. Reads have bounded retry. Writes are single-attempt. Live acceptance does not invoke writes because the public API provides no cleanup operation.
The server keeps these output classes distinct:
Stable 0.9.0 contains no advisor prompts, intent inference, weak-card
judgments, replacement recommendations, blended quality scores, or strategic
simulation. Deferred work is listed in Potential Features.
Use Task as the command menu:
task --list
task lint
task test
task surface:report
task coverage
task pack
task smoke:process
task smoke:mcp
task release:tool-smoke
Normal tests are deterministic and offline. Live tests require explicit opt-in. Each production assembly must maintain at least 90 percent line coverage.
| Project | Ownership |
|---|---|
MtgMcp.Core | Provider-neutral contracts and evidence |
MtgMcp.Decks | Local SQLite decks and interchange |
MtgMcp.Scryfall | Official transport, corpus, snapshots, and pacing |
MtgMcp.Archidekt | Observed provider contract and synchronization |
MtgMcp.Playgroup | Pinned official API evidence |
MtgMcp.Statistics | BCL-only exact calculations |
MtgMcp.App | MCP host, configuration, composition, and schemas |
Read North Star, Design Goals, and the rewrite guide for durable constraints.
Licensed under the GNU Affero General Public License v3.0 or later.
com.mcparmory/google-sheets
domdomegg/google-sheets-mcp
henilcalagiya/google-sheets-mcp
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moooonad/mcp-google-sheets-full
io.github.br0ski777/csv-to-json