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.

Look up a specific card printing by set code and collector number. Returns full card detail including current prices, rarity, type, and flavor name. For broader catalog search use search_cards.

Get current normal and foil prices for a specific card printing.

Get the 30-day price history for a card printing (normal + foil). Older data is retained on a weekly/monthly cadence beyond 30 days.

List Magic: The Gathering sets, optionally paginated. Returns set code, name, release date, type, and aggregate prices.

Get detail for a single set by code (e.g. 'lea', 'mh3').

List all cards in a set, paginated. Supports the same filters as search_cards (rarity, type, format, legality).

List sealed products (booster boxes, bundles, commander decks, etc.) for a set. Each entry includes a TCGPlayer purchase URL.

Get detail for a single sealed product by its UUID, including current pricing and a TCGPlayer purchase URL. List a set's sealed products with get_sealed_products.

Get the price history for a whole set by set code - the set's aggregate value over time. Optionally limit the window with days. For a single card's history use get_card_price_history.

Get current buylist (sell-to-vendor) offers for a card printing, by set code and collector number. Returns offers grouped by finish (normal/foil/etched), best first, with the highest offer per finish marked. NM condition only. Use get_card_prices for retail (buy) prices instead.

Market sell value of the authenticated user's whole inventory: matches every owned card against current buylist offers, picks the best offer per item (capped by the vendor's buy quantity), groups by vendor, and totals it. Returns vendor groups with per-item payouts plus overall totals. Requires IWMM_API_KEY.

Cash vs. store-credit recommendation for the authenticated user. Compares taking the buylist cash payout for their inventory against taking store credit (worth a bonus %) and spending it on their buy list. Returns the recommendation, the credit advantage, out-of-pocket each way, and the priced buy-list lines. Requires IWMM_API_KEY.

List the authenticated user's buy-list (want-list): the cards they want to acquire, with quantities, finish, and current prices. Requires IWMM_API_KEY.

Add a card to the authenticated user's buy-list, incrementing the quantity (creates the row if absent). This is a real write. Use update_buy_list to set an absolute quantity or remove_buy_list to delete a row. Requires IWMM_API_KEY.

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.

Remove a card+finish row from the authenticated user's buy-list entirely. Requires IWMM_API_KEY.

Bulk-add cards to the authenticated user's buy-list from pasted CSV text. Native format header: name,set_code,number[,quantity][,foil]. External exports (Moxfield, Archidekt, Deckbox, TCGPlayer) are auto-detected. Returns counts and per-row errors. Requires IWMM_API_KEY.

List the authenticated user's card inventory, paginated. Returns cards with quantities, prices, and metadata. Requires IWMM_API_KEY.

Batch lookup: given a list of card UUIDs, return how many of each (normal + foil) the user owns. Useful before recommending adds. Requires IWMM_API_KEY.

Add one or more cards to the authenticated user's inventory. Accepts a batch - pass a single-item array for one card. This is a real write. Use update_inventory to change quantities, remove_inventory to delete a row. Requires IWMM_API_KEY.

Update quantities for one or more existing inventory rows. Accepts a batch. Use remove_inventory to delete a row entirely. Requires IWMM_API_KEY.

Remove a card+finish row from the authenticated user's inventory. Requires IWMM_API_KEY.

Bulk-import cards into the authenticated user's inventory from pasted CSV text. Native header: name,set_code,number[,quantity][,foil]; Moxfield, Archidekt, Deckbox, and TCGPlayer exports are auto-detected. Returns counts of saved/deleted/skipped rows and per-row errors. Requires IWMM_API_KEY.

Export the authenticated user's full card inventory as CSV (columns: id, name, set_code, number, quantity, foil). Reimport-compatible with import_inventory_cards. Requires IWMM_API_KEY.

List the authenticated user's sealed-product inventory (booster boxes, bundles, precons), paginated, with quantities and prices. For loose cards use list_inventory. Requires IWMM_API_KEY.

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.

Remove a sealed product from the authenticated user's inventory entirely. Premium-gated. Requires IWMM_API_KEY.

List the authenticated user's transactions, paginated. Supports sort/filter query params. Free tier sees the last 30 days only; Premium gets full history. Requires IWMM_API_KEY.

Record a buy or sell transaction. By default this also adjusts inventory (BUY adds, SELL subtracts). This is a real write. Requires IWMM_API_KEY.

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.

Delete a transaction by ID. Requires IWMM_API_KEY.

Get FIFO cost basis for a specific card+finish for the authenticated user. Pass either cardId or (setCode, setNumber). Requires IWMM_API_KEY.

Get the authenticated user's portfolio summary - current value, total invested, unrealized P&L, ROI, card/unit counts. Free tier sees current value + total invested only; Premium gets the full P&L set. Requires IWMM_API_KEY.

Get portfolio value history. Premium-gated - free tier receives 403. Requires IWMM_API_KEY.

Get the user's best- or worst-performing cards by P&L. Default: best, top 10. Premium-gated. Requires IWMM_API_KEY.

Get the user's cash flow (money in vs money out from BUY/SELL transactions). Premium-gated. Requires IWMM_API_KEY.

Get the user's realized gains from SELL transactions using FIFO cost basis. Premium-gated. Requires IWMM_API_KEY.

Get the user's collection value broken down by a dimension into slices (each with value, count, and share). Premium-gated. Use get_portfolio_breakdown_cards to drill into one slice. Requires IWMM_API_KEY.

Get the cards inside one slice of a portfolio breakdown (the drill-down for get_portfolio_breakdown). Premium-gated. Requires IWMM_API_KEY.

Recalculate the user's portfolio P&L. Use after recording a batch of transactions if you want immediate fresh numbers. Requires IWMM_API_KEY.

List the authenticated user's decks (summaries: id, name, format, card counts). Requires IWMM_API_KEY.

Get one deck with its cards (mainboard + sideboard). Requires IWMM_API_KEY.

Create a new empty deck. This is a real write. Use add_deck_card to fill it, or import_deck to create from pasted text instead. Requires IWMM_API_KEY.

Create a deck from pasted decklist text, one entry per line (e.g. "4 Lightning Bolt"). Returns the new deck id plus any lines that could not be resolved to a card. Requires IWMM_API_KEY.

Rename a deck or change its format. Omitting format clears it. Requires IWMM_API_KEY.

Delete a deck and all of its cards. This is permanent. Requires IWMM_API_KEY.

Add a card to a deck, incrementing its quantity (creates the row if absent). Use set_deck_card_quantity to set an absolute quantity or remove_deck_card to delete a row. Requires IWMM_API_KEY.

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.

Remove a card + board row from a deck entirely. Requires IWMM_API_KEY.

Add the deck's missing cards (the shortfall vs. the user's inventory) to their buy-list. Returns the count of distinct cards added. This is a real write to the buy-list. Requires IWMM_API_KEY.

List the authenticated user's price alerts. Free tier is capped at 5 active alerts and a single threshold direction per alert; Premium removes both limits. Requires IWMM_API_KEY.

Create a price alert for a card. Supply increasePct, decreasePct, or both (Premium). At least one threshold is required. Requires IWMM_API_KEY.

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.

Delete a price alert by ID. Requires IWMM_API_KEY.

List the authenticated user's price alert notifications, newest first. Includes both read and unread. Requires IWMM_API_KEY.

Get the count of unread notifications for the authenticated user. Requires IWMM_API_KEY.

Mark a single notification as read. Requires IWMM_API_KEY.

Mark every notification for the authenticated user as read. Requires IWMM_API_KEY.