inFlow Inventory MCP server

What the model can do

inFlow Inventory: sales orders by number, customer, date or change date with inventory and payment status, totals and balances, one order with its lines, purchase orders with vendor and lines, products with stock on hand, a product's stock by location (on hand, available, reserved, on order, in transit), vendors, locations, and customers found by search (by id; names and contact details are not read); when you ask, can create sales and purchase orders, customers, products, stock adjustments and stock transfers, confirm, invoice, mark paid, fulfil, ship or cancel sales orders, and approve, receive or cancel purchase orders.

Reads

• inflow_list_sales_ordersInFlow sales orders: number, customer id, order, due, ship and invoiced dates, inventory status (Unconfirmed, Quote, Unfulfilled, Started…
• inflow_get_sales_orderOne inFlow sales order with its lines (product name and SKU, quantity, unit price, subtotal), statuses, totals and remarks.
• inflow_list_purchase_ordersInFlow purchase orders: number, vendor, vendor's order number, order and due dates, inventory status (Quote, Unapproved, Unfulfilled, Started…
• inflow_list_productsInFlow products: id, name, SKU, type (StockedProduct, NonstockedProduct, Service), active, category, description, total quantity on hand and unit.
• inflow_product_stockStock of one inFlow product, across all locations or at one: on hand, available, reserved (for sales, manufacturing, transfers), picked, on order…
• inflow_find_customersFinds inFlow customers by search text (across name and contact name) and returns their ids, whether active, default location and when last changed…
• inflow_list_vendorsInFlow vendors: id, name, active, lead time in days, website and default currency.
• inflow_list_locationsInFlow locations (warehouses and stores): id, name, whether active and whether the default.

Acts, when you ask

These change something in inFlow Inventory. The model is told to use them only when you ask for exactly that, and each one is granted by name: per team on a shared connection, by the owner on a personal one.

• inflow_create_sales_orderCreates a new sales order in inFlow for a customer (inflow_find_customers gives the id) with product lines…
• inflow_create_purchase_orderCreates a new purchase order in inFlow to a vendor with product lines; inFlow calculates totals.
• inflow_create_customerCreates a new customer in inFlow with a name and optional contact details, website, discount and remarks.
• inflow_create_productCreates a new product in inFlow.
• inflow_adjust_stockRecords a stock adjustment in inFlow at one location: each line adds (positive) or removes (negative) that quantity of a product…
• inflow_transfer_stockCreates a stock transfer in inFlow moving products from one location to another.
• inflow_confirm_sales_orderConfirms an inFlow sales order (the Confirm button), so it can be fulfilled.
• inflow_invoice_sales_orderMarks an inFlow sales order as invoiced (the Mark invoiced button); this records that an invoice was issued and sends nothing.
• inflow_mark_sales_order_paidMarks an inFlow sales order as paid in full (the Mark paid button), recording a payment for its balance in inFlow's books.
• inflow_fulfill_sales_orderFulfils every line of an inFlow sales order (the Fulfill button), deducting the stock from inventory.
• inflow_ship_sales_orderPicks, packs and ships an inFlow sales order in one step (the Ship order button), moving its stock out of inventory and marking it shipped.
• inflow_cancel_sales_orderCancels an inFlow sales order (the Cancel button); cancelling voids its payments and inventory movements.
• inflow_approve_purchase_orderApproves an inFlow purchase order (the Approve button), committing it as an order to the vendor in inFlow.
• inflow_receive_purchase_orderReceives every line of an inFlow purchase order (the Fulfill button), adding the stock to inventory.
• inflow_cancel_purchase_orderCancels an inFlow purchase order (the Cancel order button); cancelling voids its payments and inventory movements.

Connect it

First connect inFlow Inventory on Dashboard → Connections, then add Memtro to your client once. The inFlow Inventory tools appear alongside the tools of everything else you have connected; nothing is configured per connector.

claude plugin marketplace add memtro-org/claude-memtro
claude plugin install memtro@memtro --config api_key=sk-memtro-...

{
  "mcpServers": {
    "memtro": {
      "url": "https://platform.memtro.com/api/mcp",
      "headers": {
        "Authorization": "Bearer sk-memtro-..."
      }
    }
  }
}

{
  "mcp": {
    "memtro": {
      "type": "remote",
      "url": "https://platform.memtro.com/api/mcp",
      "headers": {
        "Authorization": "Bearer sk-memtro-..."
      }
    }
  }
}

Who may use it

The key identifies the person, and the server offers that person the tools they may use everywhere else in Memtro. A shared inFlow Inventory connection is used by the teams an administrator granted it to, tool by tool, on the Permissions page; a personal connection is used by its owner alone, and its tools that act stay off until the owner allows them. See Teams and permissions and Connectors.

Ask it like this

• › Which sales orders are still unfulfilled?
• › How many units of SKU MUG-01 are available at the main warehouse?
• › Show purchase order PO-000123 with its lines.
• › Which vendors do we buy from, and what are their lead times?
• › Create a purchase order to our mug supplier for 50 blue mugs.

Questions

Is this an official inFlow Inventory MCP server?

No. It is Memtro's MCP server with Memtro's inFlow Inventory connector behind it: the connector reads inFlow Inventory through its API with the credentials you connect on Dashboard → Connections, and inFlow Inventory publishes nothing here. The same endpoint carries every other system you connect and Memtro's memory tools.

What does it cost?

Nothing on top of Memtro. One price per organisation by its number of users, from $50 a month for up to 10 users after a 7-day free trial, with every connector, the MCP server, jobs and memory included. You bring your own model keys.

Can it change anything in inFlow Inventory?

Only when you ask, and only what it has been granted: create a sales order; create a purchase order; create a customer; create a product; adjust stock at a location; transfer stock between locations; confirm a sales order; mark a sales order invoiced; mark a sales order paid; fulfil a sales order (deducts stock); ship a sales order (picks, packs and ships); cancel a sales order; approve a purchase order; receive a purchase order into stock; cancel a purchase order. Every other tool reads, searches or lists. An administrator grants each acting tool by name per team, and a personal connection acts only after its owner allows it.

Which clients work?

Any MCP client that speaks Streamable HTTP: Claude Code, Cursor, Claude Desktop, OpenCode, Codex, Zed, Windsurf, Cline and the Anthropic and OpenAI SDKs. There is no local process to run; the server is remote and authenticated with your key.

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