Turn the GreenSky merchant portal into an API

What you can build on the GreenSky portal

• Check application status and credit

  Build this

  Reads your GreenSky Program applications in the merchant portal with each one's application status and the credit approved, so you can plan sales and scheduling.

  Takes

  Submitted since (optional), status (optional)

  Returns

  Application number, submitted date, status, approved credit, plan

• List transactions

  Build this

  Reads the transactions on your account in the merchant portal: the transaction requests you submitted, refunds and where each one stands.

  Takes

  Date from, date to

  Returns

  Application number, transaction type, amount, requested date, status

• Get your financing plans

  Build this

  Reads the Plan Management tab: every plan offered to you, whether it is active or inactive, its merchant fee, customer interest rate and promotion period.

  Takes

  Nothing

  Returns

  Plan, active or inactive, merchant fee, customer interest rate, promotion period

• Set plans active or inactive

  Build this

  On the Plan Management tab, selects the plans you name, clicks Set Active or sets them inactive, then saves changes so your sales reps see the new list.

  Takes

  Plans to make active, plans to make inactive

  Returns

  Plan, active or inactive, saved at

Automate the GreenSky portal 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 approvals before the day's appointments

  Build this

  Starts

  Every weekday at 7:00

  Step 1

  Check application status and credit for applications submitted in the last 30 days.

  Step 2

  Keep the applications whose status changed since the last run.

  Step 3

  Email you the list with status, approved credit and plan.

• Last week's transactions, handed to accounting

  Build this

  Starts

  Every Monday at 8:00

  Step 1

  List the transactions from Monday to Sunday of last week.

  Step 2

  Stop when there are none.

  Step 3

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

• Monthly review of your active plans

  Build this

  Starts

  On the 1st of every month at 9:00

  Step 1

  Get your financing plans from the Plan Management tab.

  Step 2

  Compare them with the last run and summarize which merchant fees, rates or promotion periods changed.

  Step 3

  Email you the active plans with a short summary of what changed.

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 application status and credit” would look like.

curl https://api.fous.com/v1/runs \
  -H "Authorization: Bearer $FOUS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "method": "portal.greensky.com/check_application_status",
    "input": {
      "submitted_since": "2026-11-01",
      "status": "Approved"
    }
  }'

{
  "status": "completed",
  "data": {
    "applications": [
      {
        "application_number": "A-7731042",
        "submitted": "2026-11-09",
        "status": "Approved",
        "approved_credit": 24000,
        "plan": "Deferred interest, 12 months",
        "currency": "USD"
      }
    ],
    "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.

The GreenSky portal’s own options

GreenSky has a proprietary API that lets merchants build financing into their own systems, and many home improvement CRM providers already use it. Its public pages publish no developer documentation, terms or price for it. Contractors otherwise use the merchant portal and the GreenSky mobile app.

Read on November 12, 2026: How integrating financing drives customer satisfaction, GreenSky merchant resources and training, GreenSky home improvement financing.

Signing in to the GreenSky portal

The portal at portal.greensky.com asks for your email address and password, with a Remember Me option. Your Client Growth Manager or GreenSky's service concierge team sets up access, and every employee who takes applications needs their own log-in. With Fous you sign in once through the portal's own sign-in with your own account: the login is sealed with AES-256 and never returned by the API or written to logs.

Worth knowing

One log-in per employee

Each employee who takes, helps with or submits applications must have their own log-in for the merchant portal or the mobile app. Sharing credentials is not allowed.

Your customer authorizes every transaction

Your customer gets a text, email or call about each charge or pending charge. Depending on the transaction control on your account, they may have to approve it before funds are released to you.

Stage funding and job completion

Transactions must stay within the stage funding parameters set for your account. Submit a job completion transaction request only when the job is substantially complete.

Refunds go through the portal

Refunds on GreenSky Program loans are submitted through the Merchant Self-Service Portal, never by check or another payment method. A cancellation within the rescission period means a full refund.

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