Get your IAA won vehicles and titles through an API

What you can build on IAA

• Get won vehicles

  Build this

  Reads the vehicles listed under My Auction Center > Won Vehicles for your buyer account, with the branch each one sold at.

  Takes

  Nothing

  Returns

  Stock number, year, make and model, branch, sale date, title handling instructions set or not

• Read my watchlist

  Build this

  Reads the vehicles you added with Add to My Watchlist, with the branch and the auction each one is scheduled for.

  Takes

  Nothing

  Returns

  Stock number, year, make and model, branch, auction date

• Estimate buyer fees for a vehicle

  Build this

  Opens a vehicle's Vehicle Details page and uses the Cost Calculator in the Bid Information box to work out the fees for a bid amount.

  Takes

  Stock number, bid amount

  Returns

  Stock number, branch, bid amount, buyer fee, other fees, estimated total

• Set title handling instructions

  Build this

  Selects a vehicle under My Auction Center > Won Vehicles and saves its sale document instructions, for example FedEx to an address you give.

  Takes

  Stock number, delivery method, shipping address

  Returns

  Stock number, delivery method, shipping address, saved or not

Automate IAA 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 won vehicles, with their branch, every morning

  Build this

  Starts

  Every weekday at 7:00

  Step 1

  Get the vehicles listed under Won Vehicles in My Auction Center.

  Step 2

  Keep the vehicles that were not there on the last run.

  Step 3

  Email you each one with its stock number, vehicle, branch and sale date, so you can check that branch's days to pay and pick up.

• Won vehicles still without title handling instructions

  Build this

  Starts

  Every Monday at 8:00

  Step 1

  Get the vehicles listed under Won Vehicles in My Auction Center.

  Step 2

  Keep the ones with no sale document instructions set.

  Step 3

  Email you the list with stock number, vehicle, branch and sale date.

• Watchlist fee estimates before the auctions

  Build this

  Starts

  When your system calls the workflow's webhook with a bid amount per stock number

  Step 1

  Read every vehicle on your Watchlist.

  Step 2

  For each vehicle with a bid amount, estimate the buyer fees with the Cost Calculator at that amount.

  Step 3

  Post stock number, branch, auction date, bid amount and estimated total to your 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 won vehicles” would look like.

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

{
  "status": "completed",
  "data": {
    "won_vehicles": [
      {
        "stock_number": "41275903",
        "year": 2019,
        "make": "Toyota",
        "model": "Camry",
        "branch": "Northwind Branch",
        "sale_date": "2026-11-10",
        "title_instructions_set": false
      }
    ]
  }
}

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.

IAA’s own options

IAA's buyer help centre covers the website at iaai.com and the IAA Buyer App, where buyers bid, pay and manage their account. It describes no API or data feed for buyers. Title handling instructions are set per vehicle under Won Vehicles, and titles can be sent by FedEx for a fee.

Read on November 12, 2026: How do I bid?, Where do I provide title handling instructions?, How can I find a missing title or sale document?.

Signing in to IAA

You sign in to iaai.com with your buyer account, and the same account is used for bidding, Won Vehicles and title handling instructions. With Fous you sign in once through IAA's own sign-in with your own account. The login is sealed with AES-256, never returned by the API or written to logs, and a method reads and does only what your account can.

Worth knowing

Days to pay and pick up depend on the branch

Each branch location page lists its Late and Storage fee rates, the number of days to pay and pick up vehicles, and that auction's terms. A won vehicle list is more useful with the branch on every row.

Sale documents are not kept forever

Sale documents without a valid U.S. address, or not picked up by the owner, are held for 1 year from the sale date. After that, without instructions from the buyer, the title is shredded.

FedEx titles are paid for first

IAA can send a title by FedEx for a small fee, which must be paid before the title is sent. A vehicle with a TBO title also needs sale document instructions.

Buy Now closes the night before

A Buy Now vehicle can be bought up to 8:00pm the night before its next scheduled auction. Accepting the price invoices it to your account at once, with the standard buyer fees.

More in Automotive: dealers

• FMCDealer
• GM GlobalConnect
• Honda Interactive Network
• Kia KDealer+
• NNAnet
• Stellantis DealerCONNECT
• Toyota Dealer Daily
• Dealertrack uniFI
• RouteOne
• VinSolutions Connect CRM
• Dealertrack DMS
• ACV Auctions
• OPENLANE
• Ally Dash
• Copart
• USS CIS
• vAuto Provision
• AutoScout24 Händlerbereich
• CarGurus Dealer Dashboard
• mobile.de Händlerbereich
• Cars.com Dealer Center
• Auto Trader Portal
• AUTO1.com
• Manheim

Other industries: Paychex Flex, SOKA-BAU Online-Service, Alibaba.com supplier back end, TikTok Shop Seller Center, Parchment, FPL online account.