generated: '2026-09-13'
method: probed
source: https://hearthnhome.com/api/ucp/mcp
name: Hearth & Home Technologies Agent Commerce MCP Server
status: live
company: HNI Corporation
operating_company: Hearth & Home Technologies (HNI Residential Building Products segment)
deployment:
  mode: remote
  endpoint: https://hearthnhome.com/api/ucp/mcp
  auth: oauth
  auth_note: >-
    Two-stage. tools/list is ANONYMOUS — the full 13-tool manifest with inputSchemas came back with no
    credential. tools/call is GATED: it requires a fetchable `meta.ucp-agent.profile` URI and a valid
    Shopify agent JWT (JSON-RPC -32000 AuthenticationRequired otherwise, pointing at
    https://shopify.dev/docs/agents/get-started/authentication). Discovery open, execution closed.
  verified: probed
discovery:
  - url: https://hearthnhome.com/llms.txt
    status: 200
    note: names the MCP endpoint and the UCP discovery document
  - url: https://hearthnhome.com/agents.md
    status: 200
    note: canonical agent-facing description; llms.txt mirrors it
  - url: https://hearthnhome.com/.well-known/ucp
    status: 200
    note: UCP merchant profile declaring transport "mcp" and the endpoint
authorship:
  authored_by: platform
  platform: Shopify
  note: >-
    The server is Shopify's Universal Commerce Protocol implementation, served on a host HNI Corporation
    controls (hearthnhome.com) and bound to HNI's own product catalog. The UCP profile canonicalises the
    endpoint to https://hearth-home-hr.myshopify.com/api/ucp/mcp, which is the same store. HNI did not
    author the tool set; it did deploy the storefront that exposes it.
protocol:
  transport: streamable-http (JSON-RPC 2.0 over POST)
  ucp_versions:
    - '2026-08-25'
    - '2026-04-08'
    - '2026-01-23'
  ucp_current: '2026-08-25'
  schema: https://ucp.dev/2026-08-25/services/shopping/mcp.openrpc.json
probe:
  fetched: '2026-09-13'
  method: POST
  request: '{"jsonrpc":"2.0","id":1,"method":"tools/list"}'
  http_status: 200
  authenticated: false
  tool_count: 13
  execution_probe:
    method: tools/call
    authenticated: false
    result: 'JSON-RPC -32000 AuthenticationRequired / -32001 UCP discovery failed'
    note: Tool execution could not be exercised anonymously; see errors/hni-problem-types.yml.
  raw: mcp/hni-hearthnhome-tools.json
tools:
  - name: search_catalog
    category: catalog
    description: Search for products from the online store, hosted on Shopify.
  - name: lookup_catalog
    category: catalog
    description: Look up multiple products or variants by identifier.
  - name: get_product
    category: catalog
    description: Retrieve complete product detail by identifier. Returns a singular product.
  - name: get_cart
    category: cart
    description: Get the cart contents.
  - name: create_cart
    category: cart
    description: Creates a new cart.
  - name: update_cart
    category: cart
    description: Perform updates to a cart.
  - name: cancel_cart
    category: cart
    description: Cancels a cart.
  - name: get_checkout
    category: checkout
    description: Returns checkout details including line items, totals, discounts and taxes.
  - name: create_checkout
    category: checkout
    description: Creates a checkout.
  - name: update_checkout
    category: checkout
    description: Updates a checkout.
  - name: complete_checkout
    category: checkout
    description: Completes a checkout; returns order ID, Thank You Page URL, or errors.
  - name: cancel_checkout
    category: checkout
    description: Cancels a checkout.
  - name: get_order
    category: order
    description: Get the details of an order.
capabilities:
  - dev.ucp.shopping.catalog.search
  - dev.ucp.shopping.catalog.lookup
  - dev.ucp.shopping.cart
  - dev.ucp.shopping.checkout
  - dev.ucp.shopping.order
  - dev.ucp.shopping.fulfillment
  - dev.ucp.shopping.discount
constraints:
  - Checkout requires contemporaneous human approval; agents must not complete payment without explicit
    buyer consent (stated in llms.txt).
  - The MCP endpoint is rate-limited per IP; back off on 429 (stated in llms.txt).
  - Every tools/call requires a `meta.ucp-agent.profile` URI that the server fetches over HTTP before
    dispatch; an unreachable profile is rejected with -32001 profile_unreachable.
  - tools/call additionally requires a Shopify agent JWT.
  - complete_checkout accepts `meta.idempotency-key`; no other mutating tool does.
  - There is no refund, void or reverse tool — a completed checkout cannot be undone through this API.
tool_crosswalk: null
tool_crosswalk_note: >-
  No tool crosswalk was written: HNI publishes no OpenAPI and no GraphQL endpoint, so there is nothing to
  bind the MCP tools to. The crosswalk is emitted only when a second contract surface exists.