ikea-mcp

Read-only MCP server for IKEA product search and in-store stock lookup.

Transports: stdio (Claude Desktop / MCP CLI) · Streamable HTTP (remote clients) License: MIT · No auth required to run locally

Capabilities

MVP limitations

• Uses unofficial public IKEA APIs — no SLA, may break without notice

• Canada store coverage is complete (15 stores)

• US coverage is incomplete — 4 small-format stores have unknown API IDs (Queens, Alpharetta, Indianapolis, Arlington)

• San Francisco small-format store is intentionally excluded (known ID 3136 returns 405)

• No extra stores are included

• Cash-and-carry availability only — click-and-collect and home delivery not exposed

• HTTP transport is open by default — set API_KEY env var to require x-api-key header on /mcp

• Read-only — no cart, order, or account operations

Tools

search_products

Search IKEA products by keyword.

Input

Output

{
  "total": 97,
  "items": [
    {
      "itemNo": "20522046",
      "name": "BILLY",
      "typeName": "Bookcase",
      "salesPrice": { "amount": 69.99, "currencyCode": "USD" },
      "pipUrl": "https://www.ikea.com/us/en/p/...",
      "ratingValue": 4.8,
      "ratingCount": 1234
    }
  ]
}

get_product_details

Get details for a single IKEA product by item number.

Input

Output

{
  "itemNo": "20522046",
  "name": "BILLY",
  "typeName": "Bookcase",
  "salesPrice": { "amount": 79, "currencyCode": "USD" },
  "pipUrl": "https://www.ikea.com/us/en/p/billy-bookcase-white-20522046/",
  "designText": "white",
  "measureText": "31 1/2x11x79 1/2 \"",
  "ratingValue": 4.6,
  "ratingCount": 2620
}

shortDescription and materials are not available from the underlying API.

check_store_stock

Check stock at a single IKEA store.

Input

Output

{
  "storeId": "399",
  "availableForCashCarry": true,
  "quantity": 110,
  "messageType": "HIGH_IN_STOCK",
  "errors": null
}

On error (e.g. item not carried):

{
  "storeId": "026",
  "availableForCashCarry": false,
  "quantity": null,
  "messageType": null,
  "errors": [{ "code": 404, "message": "Not found", "meaning": "item not stocked at this store" }]
}

compare_store_stock

Compare stock for one item across multiple stores. Provide explicit storeIds, or use countryCode to expand to all catalog stores for that country. At least one of storeIds or countryCode is required.

Input

storeIds takes precedence — if both are provided, countryCode only sets the IKEA API locale. sortBy: "quantity" sorts descending, null quantities last, storeId as tie-breaker. sortBy: "storeId" sorts ascending. Omitting sortBy preserves input order.

Examples

{ "itemNo": "20522046", "storeIds": ["399", "026", "921"] }

{ "itemNo": "20522046", "countryCode": "CA" }

Output — array of the same shape as check_store_stock (one entry per store).

Detecting partial failures: rows with errors containing any code other than 404 indicate a store-level or API failure (e.g. 405 = invalid store ID). Rows with only 404 errors mean the item is simply not stocked at that store — this is expected, not a failure.

check_multi_item_stock

Check cash-and-carry stock for multiple items at a single store in one call.

Input

Output — array of per-item stock entries in the same order as itemNos:

[
  {
    "itemNo": "20522046",
    "storeId": "399",
    "storeLabel": "399 (Burbank, CA)",
    "availableForCashCarry": true,
    "quantity": 104,
    "messageType": "HIGH_IN_STOCK",
    "errors": []
  }
]

Items not stocked at that store appear with availableForCashCarry: false, quantity: null, and a 404 error entry. An invalid storeId (405) returns that error on every entry.

find_best_store_for_item

Find stores with the highest in-stock quantity for an item. Queries stores in parallel, excludes invalid stores (405), out-of-stock stores (404), and stores with unknown quantity. Results sorted by quantity descending; ties broken by storeId lexicographically.

Input

storeIds takes precedence. If only countryCode is given, searches all catalog stores for that country. If neither is given, searches all ~65 known stores. minQuantity excludes stores with quantity below the threshold.

Output — array of matching stores, up to maxResults:

[
  {
    "storeId": "399",
    "storeLabel": "399 (Burbank, CA)",
    "availableForCashCarry": true,
    "quantity": 104,
    "messageType": "HIGH_IN_STOCK"
  }
]

Returns [] if no store has the item in stock. "All known stores" means the ~65 US and Canada entries in src/data/stores.ts.

Note on failures: stores that return a store-level error (405 invalid store ID) are silently excluded from results rather than appearing as rows. Use compare_store_stock with the same storeIds to inspect per-store errors directly.

check_cart_availability

Check whether all items in a shopping list are available in sufficient quantity at a single IKEA store.

Input

Output

{
  "storeId": "399",
  "storeLabel": "399 (Burbank, CA)",
  "allSufficient": true,
  "items": [
    {
      "itemNo": "20522046",
      "quantity": 2,
      "inStock": 42,
      "sufficient": true,
      "eligibleForStockNotification": false,
      "errors": []
    }
  ]
}

allSufficient is true only when every item has sufficient: true. Items not stocked appear with inStock: null and a 404 error. An invalid storeId (405) propagates to all items.

find_best_store_for_cart

Find the best store to buy multiple items in one trip. Ranks stores by how many cart items are available in sufficient quantity, then by total in-stock sum. Optionally filter by countryCode or provide explicit storeIds.

Input

storeIds takes precedence. If only countryCode is given, searches all catalog stores for that country. If neither is given, searches all ~65 known stores.

Output — array of stores ranked by cart fulfillment, up to maxResults:

[
  {
    "storeId": "399",
    "storeLabel": "399 (Burbank, CA)",
    "allSufficient": true,
    "fulfilledCount": 3,
    "totalCount": 3,
    "items": [
      { "itemNo": "20522046", "quantity": 2, "inStock": 42, "sufficient": true },
      { "itemNo": "40477340", "quantity": 1, "inStock": 5, "sufficient": true },
      { "itemNo": "89268919", "quantity": 1, "inStock": 12, "sufficient": true }
    ]
  }
]

fulfilledCount = number of items with sufficient: true. Sorting: fulfilledCount desc → total stock desc → storeId asc. Stores with invalid IDs (405) are excluded.

Example workflows

1. Search → inspect → check one store

1. search_products       { "query": "BILLY bookcase" }
   → pick itemNo from results, e.g. "20522046"

2. get_product_details   { "itemNo": "20522046" }
   → confirms name, price, dimensions before checking stock

3. check_store_stock     { "itemNo": "20522046", "storeId": "399" }
   → { "availableForCashCarry": true, "quantity": 95, "messageType": "HIGH_IN_STOCK" }

2. Shopping list at one store

Check whether several items are available in a single trip:

{
  "tool": "check_multi_item_stock",
  "storeId": "399",
  "itemNos": ["20522046", "40477340", "89268919"]
}

Returns one entry per item in the same order — items not stocked appear with availableForCashCarry: false and a 404 error.

3. Best store from a mixed US + Canada subset

{
  "tool": "find_best_store_for_item",
  "itemNo": "20522046",
  "storeIds": ["399", "039", "216", "149", "026"],
  "maxResults": 3
}

Returns the top 3 stores by in-stock quantity across the mixed US/Canada subset. Omit storeIds to search all ~65 known stores.

4. Best store for a shopping list

Find which store can fulfill the most items from a multi-item cart:

{
  "tool": "find_best_store_for_cart",
  "items": [
    { "itemNo": "20522046", "quantity": 2 },
    { "itemNo": "40477340", "quantity": 1 },
    { "itemNo": "89268919", "quantity": 1 }
  ],
  "countryCode": "CA",
  "maxResults": 3
}

Returns the top 3 Canada stores ranked by how many items they can fully supply. Use check_cart_availability to then verify exact quantities at the chosen store.

Build and test

npm install
npm run build        # tsc → dist/
npm run typecheck    # type-check without emit
npm test             # unit tests
node smoke.mjs       # end-to-end stdio smoke test

smoke.mjs exercises all 4 tools against the live IKEA API and prints pass/fail lines to stdout.

Transports

stdio (default — for Claude Desktop / MCP CLI):

npx ikea-mcp          # after npm install (uses bin entry)
node dist/index.js    # after local build
npm run dev           # dev (tsx, no build needed)

Streamable HTTP (for remote / network clients):

node dist/http.js          # listens on http://localhost:3000/mcp
PORT=8080 node dist/http.js
# or during dev:
npm run dev:http

Requests must include Accept: application/json, text/event-stream. Stateless — no session management.

Deploy (HTTP transport)

Tested target: Railway (also works on Render, Heroku, or any Procfile-aware host).

# 1. build
npm install && npm run build

# 2. run (Procfile: web: node dist/http.js)
#    PORT is set automatically by the host
node dist/http.js

The Procfile in the repo root declares web: node dist/http.js. PORT is read from the environment (default 3000). No other env vars required.

Endpoints after deploy:

• POST /mcp — MCP Streamable HTTP (requires Accept: application/json, text/event-stream)

• GET /health — returns {"status":"ok"}

Security note: Set API_KEY to protect the /mcp endpoint. Requests without a matching x-api-key header return 401. /health is always open. The server is read-only — no cart, order, or account operations are possible.

API_KEY=your-secret node dist/http.js

Connecting a local MCP client (stdio)

Claude Desktop (claude_desktop_config.json):

{
  "mcpServers": {
    "ikea-mcp": {
      "command": "npx",
      "args": ["-y", "ikea-mcp"]
    }
  }
}

Connecting a remote MCP client (HTTP)

Point your MCP client at https://<your-host>/mcp.

Claude Desktop (claude_desktop_config.json):

{
  "mcpServers": {
    "ikea-mcp": {
      "type": "http",
      "url": "https://<your-host>/mcp"
    }
  }
}

.mcp.json (project-local, Claude Code):

{
  "mcpServers": {
    "ikea-mcp": {
      "type": "http",
      "url": "https://<your-host>/mcp"
    }
  }
}

Manual / curl (for debugging):

curl -X POST https://<your-host>/mcp \
  -H "Content-Type: application/json" \
  -H "Accept: application/json, text/event-stream" \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/list","params":{}}'

The Accept: application/json, text/event-stream header is required by the MCP SDK — requests without it will be rejected with a -32000 error.

Store IDs

Store metadata (ID → city label) lives in src/data/stores.ts. ~50 US stores confirmed from ikea.com/us/en/stores/ pages; 15 Canada stores confirmed from ikea.com/ca/en/stores/ pages (all probed against the stock API).

Confirmed compatible storeId formats:

• Standard 3-digit: "399" (Burbank, CA, US), "216" (Calgary, AB, CA)

• Leading-zero 3-digit: "026" (Canton, MI, US), "039" (Montreal, QC, CA)

• 4-digit: "921" (Brooklyn, NY, US), "1129" (Syracuse, NY, US)

An invalid or unsupported storeId returns a 405 error in the errors array.

Limitations

• Uses unofficial public IKEA APIs — no SLA, no auth required, may break without notice.

• Read-only: no cart, no order, no account operations.

• Country-wide fan-out (countryCode: "US" ≈ 52 stores, "CA" ≈ 15) is capped at 10 concurrent requests and retries once on transient 5xx/network errors.

• Click-and-collect and home-delivery availability are not exposed (cash-and-carry only).

• size in search_products is capped by IKEA's API (observed max ~24 per page; total reflects the full catalogue count).

• US and Canada only — no other countries supported.

Item numbers

itemNo fields accept several formats — all are normalised to 8 digits internally:

6- and 7-digit inputs are left-padded to 8 digits. 8- and 9-digit inputs are kept as-is. Values outside 6–9 digits after stripping are rejected.

Supported countries

Use list_stores to get the current catalog. Some store IDs in the catalog are unverified — they are listed but may return 405 from the stock API.

Rate limits & reliability

• Fan-out requests (country-wide compare_store_stock / find_best_store_for_item) are capped at 10 concurrent outbound requests.

• fetchJson retries once after 500 ms on 5xx, 429, or network errors. 404 and 405 are not retried (they are semantic responses, not transient failures).

• Retry-After header is respected for 429 responses.

• Do not use in high-frequency loops — the upstream IKEA API has no published rate limit but will block repeated bursts.

Troubleshooting