Get NAPA PROLink parts, stock and prices through an API

What you can build on PROLink

• Check store stock and price

  Build this

  Reads your servicing NAPA AUTO PARTS store's inventory and your account price for each part number you give.

  Takes

  Part numbers, store (optional)

  Returns

  Part number, description, store, quantity on hand, your price

• Look up parts for a vehicle

  Build this

  Runs a Catalog Look-Up by VIN and job type or keyword and reads the matching NAPA parts.

  Takes

  VIN, job type or keyword

  Returns

  Vehicle, part number, description, your price, in stock at your store

• Find a part across stores with Find-It

  Build this

  Uses Find-It to search other NAPA stores, distribution centers and NAPA suppliers for a part your store does not have.

  Takes

  Part number

  Returns

  Part number, location, location type

• Order parts from your store

  Build this

  Places an on-line order for the part numbers and quantities you give with one of your NAPA AUTO PARTS stores.

  Takes

  Store, part numbers with quantities

  Returns

  Order confirmation, store, parts, quantities, prices

Automate PROLink 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.

• Morning stock check of your most-used parts

  Build this

  Starts

  Every weekday at 7:00

  Step 1

  Check store stock and price for the part numbers on your list.

  Step 2

  Keep the parts with a quantity on hand of zero.

  Step 3

  For each of those, find the part across stores with Find-It.

  Step 4

  Email you the list with the locations that have each part.

• Weekly account price changes on your parts list

  Build this

  Starts

  Every Monday at 8:00

  Step 1

  Check store stock and price for each part number on your list.

  Step 2

  Keep the parts whose price changed since the last run.

  Step 3

  Post part number, old price and new price to your accounting system's webhook.

• Parts and prices for a new repair order

  Build this

  Starts

  When your shop system calls the workflow's webhook with a VIN and a job

  Step 1

  Look up parts for the vehicle by VIN and job type.

  Step 2

  Keep the parts your store has in stock.

  Step 3

  Post part number, description and price back to your shop 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 “Check store stock and price” would look like.

curl https://api.fous.com/v1/runs \
  -H "Authorization: Bearer $FOUS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "method": "www.napaprolink.com/check_store_stock",
    "input": {
      "part_numbers": [
        "BRK 70412",
        "FIL 19087"
      ]
    }
  }'

{
  "status": "completed",
  "data": {
    "store": "Northwind Auto Parts #214",
    "parts": [
      {
        "part_number": "BRK 70412",
        "description": "Disc Brake Pad Set, Front",
        "quantity_on_hand": 4,
        "your_price": 38.72
      },
      {
        "part_number": "FIL 19087",
        "description": "Engine Oil Filter",
        "quantity_on_hand": 0,
        "your_price": 5.41
      }
    ]
  }
}

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.

PROLink’s own options

NAPA does not offer shops an API of their own. Through its integration partners, it connects the NAPA catalog and ordering to shop management, collision estimating and eProcurement systems, and sets each shop up for that connection. PROLink itself needs a registration and a commercial account at each NAPA AUTO PARTS store you buy from.

Read on November 12, 2026: NAPA PROLink support, NAPA PROLink in NAPA TRACS.

Signing in to PROLink

PROLink signs you in with a username and password, with a Remember Me option. One login belongs to your business, and each NAPA AUTO PARTS store links it to your commercial account. With Fous you sign in once through PROLink's own sign-in with your own account: the login is sealed with AES-256, and an expired session is signed back in.

Worth knowing

Each store needs your PROLink ID

Registering gives you a 10 digit NAPA PROLink ID. Every NAPA AUTO PARTS store you buy from must enter it on your commercial account in TAMS before you see its pricing or can order.

Your store must be on the NAPA WAN

PROLink shows a store's inventory and pricing only when that servicing store is on the NAPA Wide Area Network. Ask the store if you are not sure.

Find-It reaches past your own store

Find-It searches the NAPA channel: multiple NAPA stores, up to 3 distribution centers and NAPA suppliers. A workflow can run Find-It for each part your stock check shows at zero.

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