Turn the RTX Supply Chain Platform into an API

What you can build on RSCP

• Get new and updated purchase orders

  Build this

  Reads the purchase orders in the New and Updated states from the Order Summary on My Workspace, down to each request schedule.

  Takes

  State (New or Updated), order number (optional)

  Returns

  Order number, line, schedule, state, request delivery date, request qty, unit price, Early Shipment flag, changed fields

• Get reconfirmation requests

  Build this

  Reads Reconfirmation-Purchase Orders in Supply Network Exceptions on My Workspace, with the High, Medium or Low level of each schedule.

  Takes

  Level (High, Medium, Low or all)

  Returns

  Order number, line, schedule, request delivery date, quantity, reconfirm level

• Check invoice line states

  Build this

  Searches invoices under Order Management and reads each line's Line State and Status Message.

  Takes

  Invoice number or order number, created since (optional)

  Returns

  Invoice number, order number, line, line state, status message, invoice type (credit or debit), amount

• Accept purchase order schedule lines

  Build this

  Opens a purchase order, selects the schedule lines you name and responds Accept, then reads the order state and the Downloaded to Buyer flag.

  Takes

  Order number, schedule lines

  Returns

  Order number, schedule lines accepted, order state, downloaded to buyer

Automate RSCP with a workflow

A workflow runs your methods as one process, with nobody at the screen. A schedule or a call from your own system starts it, the steps run in order, and the result arrives in your inbox or in the systems you already use.

• New and updated purchase orders, every weekday

  Build this

  Starts

  Every weekday at 7:00

  Step 1

  Get the purchase orders in the New and Updated states from the Order Summary.

  Step 2

  Keep the schedule lines that were not there on the last run.

  Step 3

  Email you the list grouped by order, with the changed fields named.

• Monthly reconfirmation requests, by level

  Build this

  Starts

  Every month on the 2nd at 8:00

  Step 1

  Get the reconfirmation requests at every level from Supply Network Exceptions.

  Step 2

  Have an AI step group them by level, High first.

  Step 3

  Post the list to your planning system's webhook and email you the High ones.

• Invoice line states, handed to accounting

  Build this

  Starts

  Every weekday at 17:00

  Step 1

  Check the line states of the invoices sent in the last 90 days.

  Step 2

  Keep the lines whose Line State changed since the last run.

  Step 3

  Post invoice number, line, line state and status message to your accounting webhook.

You can run a workflow by hand on every plan, Free included. Schedules and webhook triggers come with the paid plans, from $29 a month.

Once built, one call from your code

Once you have built a method, it is one POST to /v1/runs from your backend, or a tool an AI agent calls over MCP. This is what “Get new and updated purchase orders” would look like.

curl https://api.fous.com/v1/runs \
  -H "Authorization: Bearer $FOUS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "method": "portal.exostar.com/get_new_and_updated_purchase_orders",
    "input": {
      "state": "Updated"
    }
  }'

{
  "status": "completed",
  "data": {
    "schedules": [
      {
        "order_number": "7712045",
        "line": "10",
        "schedule": "1",
        "state": "Updated",
        "request_delivery_date": "2027-01-18",
        "request_qty": 24,
        "unit_price": 412.5,
        "early_shipment": "No",
        "changed_fields": "Request Delivery Date, Request Qty"
      }
    ],
    "count": 1
  }
}

An example with invented data, not a ready-made endpoint. The method exists in your organization once you build it, and its name, inputs and fields follow your request.

RSCP’s own options

Exostar's RSCP Product Guide describes a web application reached through Exostar's Managed Access Gateway. It offers Excel (.xls) uploads and downloads for selected transactions and email alerts, and it does not describe an API for suppliers.

Read on November 12, 2026: RTX Supply Chain Platform (RSCP) Product Guide, RTX: Raytheon suppliers.

Signing in to RSCP

RSCP is reached through Exostar's Managed Access Gateway (MAG): you need an approved MAG account, and RSCP requires a SOTP (Soft One Time Password with proofing) credential. RTX's supplier training describes it as a one-time password sent by SMS to a registered phone. With Fous you sign in through Exostar's own sign-in with your own account. The login is sealed with AES-256, never returned by the API or logged.

Worth knowing

A response reaches RTX only when complete

A PO is sent to RTX only when every schedule line has left New and Updated. RSCP checks every 15 minutes and then sets Downloaded to Buyer to Yes.

The Early Shipment flag limits Accepted

With the flag at Yes, Accepted allows any earlier date or up to seven days later. At No, it allows seven days either way. With no flag, Accepted needs the exact Request Delivery Date.

RSCP archives and purges records

Closed, cancelled and rejected PO lines archive 60 days after the header last changed and are purged after 180 days. Paid, Rejected or Approved invoice lines archive after 90 days.

Payment status is not the payment

Payments are not processed through RSCP, and only some RTX business units send invoice payment statuses. A Total Amount can cover several invoices or POs.

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