Turn McKesson Connect into an API

What you can build on McKesson Connect

• Get invoices and statements

  Build this

  Reads Accounts Payable for an account and date range and lists each invoice, credit and statement with its amount.

  Takes

  Account, date range, transaction type (optional)

  Returns

  Transaction type, number, date, amount, and the account's credit, debit and balance information

• Check price and availability

  Build this

  Searches the product catalog for the products you name and reads each one's current price and availability.

  Takes

  A list of products, by NDC or item number

  Returns

  Product, description, price, availability

• Get DSCSA transaction information

  Build this

  Searches historical DSCSA transaction information for your purchases from McKesson and returns each item's identifiers.

  Takes

  Date range, product (optional)

  Returns

  GTIN, serial number, lot number, expiration date

• Submit an order

  Build this

  Builds an order from your list of products and quantities for one account and submits it.

  Takes

  Account, products with quantities

  Returns

  Whether the order was submitted, and each line's product, quantity and price

Automate McKesson Connect 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.

• Yesterday's invoices and credits, sent to accounts payable

  Build this

  Starts

  Every day at 6:00

  Step 1

  For each account you name, get the invoices and credits dated yesterday from Accounts Payable.

  Step 2

  Stop when there are none.

  Step 3

  Post each transaction's type, number, date and amount to your accounting webhook.

• Price and availability changes on your reorder list

  Build this

  Starts

  Every weekday at 7:00

  Step 1

  Check price and availability for the NDCs on your list.

  Step 2

  Keep the products that are unavailable, or whose price differs from the last run.

  Step 3

  Email you the changes, with the earlier price beside the new one.

• DSCSA transaction information, filed every week

  Build this

  Starts

  Every Monday at 5:00

  Step 1

  Get the DSCSA transaction information for last week's purchases.

  Step 2

  Post each item's GTIN, serial number, lot number and expiration date to your records system's 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 invoices and statements” would look like.

curl https://api.fous.com/v1/runs \
  -H "Authorization: Bearer $FOUS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "method": "connect.mckesson.com/get_invoices_and_statements",
    "input": {
      "account": "Northwind Pharmacy",
      "from": "2026-10-01",
      "to": "2026-10-31"
    }
  }'

{
  "status": "completed",
  "data": {
    "account": "Northwind Pharmacy",
    "balance": {
      "debits": 11994.57,
      "credits": 612.4,
      "balance": 11382.17
    },
    "transactions": [
      {
        "type": "Invoice",
        "number": "7300418822",
        "date": "2026-10-06",
        "amount": 6120.55
      }
    ]
  }
}

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.

McKesson Connect’s own options

McKesson lists no API for McKesson Connect. Its data integration page offers EDI interfaces for purchase orders, order acknowledgments, advance shipping notifications, invoices and price files, and a Data Exchange module for pharmacies that cannot support direct EDI. McKesson's E-Commerce Services and Third Party Interfaces teams work with you on the integration. The page states no price.

Read on November 11, 2026: McKesson: Pharmaceutical ordering data and systems integration, McKesson: Purchase history reporting, McKesson: Pharmacy accounts payable.

Signing in to McKesson Connect

McKesson Connect signs each person in with a user ID and password. McKesson also describes single sign-on into it from its EnterpriseRx and Supplylogix systems. With Fous you sign in once through McKesson Connect's own sign-in with your own account: the login is sealed with AES-256, code and AI agents never see it, and when a session expires Fous signs back in.

Worth knowing

Reports and invoices keep different histories

Purchase history reports cover up to 28 months. Accounts Payable keeps up to seven years of invoices and statements, so read older purchases from the invoices.

Custom reports are prepared, then announced

Custom reports are created daily, weekly or monthly, and you get an electronic notification when one is ready to view, print, download or share. Read a scheduled report after that notification.

Receipts appear only if you capture them

Accounts Payable shows receipts for purchases only if you capture them with Mobile Manager or McKesson Connect Ordering. Proof-of-delivery signatures (PODs) are there for McKesson-delivered purchases.

CSOS orders are signed with a certificate

Controlled substance orders placed through CSOS in McKesson Connect are signed electronically with a password-protected digital certificate. Keep those orders with the certificate holder.

More in Healthcare

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• PCSE Online
• CAQH Provider Data Portal
• 340B ESP
• 340B OPAIS
• Henry Schein online ordering
• AAH Hub
• ABC Order
• Alliance Healthcare portal (UK)
• Cardinal Health Order Express
• PharmaClik
• NHS Supply Chain Online Catalogue
• McKesson SupplyManager
• Medline.com

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