Get your Forecast container availability through an API

What you can build on Forecast

• Check import container availability

  Build this

  Looks up several containers at once in the terminal's import availability and reads each one's clearance, holds and releases, demurrage status and last free day.

  Takes

  Container numbers

  Returns

  Container number, available or not, holds, releases, clearance status, demurrage status, last free day

• Check a booking before the gate

  Build this

  Uses Booking Pre-Check to see whether a booking is valid in the terminal's system before a truck is sent with an export container.

  Takes

  Booking number

  Returns

  Booking number, valid or not, what the terminal shows for the booking

• Get gate transactions and gate errors

  Build this

  Reads your company's gate transactions and gate errors at the terminal for a date range.

  Takes

  From date, to date

  Returns

  Date and time, container number, gate transaction, gate error

• Book a gate appointment

  Build this

  Schedules a gate appointment for a container and submits the pre-advice the terminal asks for before the truck arrives.

  Takes

  Container or booking number, date, time slot, trucking company

  Returns

  Appointment number, container or booking number, date, time slot, status

Automate Forecast 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.

• Containers you can pull today, at every terminal

  Build this

  Starts

  Every weekday at 6:00

  Step 1

  For each terminal you name, check the import availability of your open containers.

  Step 2

  Keep the containers that are available and have no hold.

  Step 3

  Email you the list by terminal, with each container's last free day.

• Holds released or last free day changed

  Build this

  Starts

  Every hour

  Step 1

  Check the import availability of the containers you are waiting on.

  Step 2

  Keep the containers whose holds, releases or last free day changed since the last run.

  Step 3

  Post each change to your dispatch system's webhook.

• Yesterday's gate errors, for your trucking desk

  Build this

  Starts

  Every weekday at 7:00

  Step 1

  Get yesterday's gate transactions and gate errors at the terminal.

  Step 2

  Stop when there are no gate errors.

  Step 3

  Summarize the errors by type and email you the summary with the containers involved.

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 import container availability” would look like.

curl https://api.fous.com/v1/runs \
  -H "Authorization: Bearer $FOUS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "method": "t18.tideworks.com/check_import_availability",
    "input": {
      "container_numbers": [
        "NWLU4810267",
        "ACMU7735190"
      ]
    }
  }'

{
  "status": "completed",
  "data": {
    "terminal": "Terminal 18, Seattle",
    "containers": [
      {
        "container_number": "NWLU4810267",
        "available": true,
        "holds": [],
        "releases": [
          "Customs"
        ],
        "clearance_status": "Cleared",
        "demurrage_status": "No charges due",
        "last_free_day": "2026-11-16"
      }
    ],
    "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.

Forecast’s own options

Forecast is the web portal each terminal runs on Tideworks for its customers: availability, bookings, appointments, reports and payments, as your company's access allows. Tideworks also offers the Tideworks Unified Gateway, which gives external partners API access to a terminal's data. Forecast itself offers email or text notifications and reports you export to Excel or PDF.

Read on November 12, 2026: Forecast by Tideworks, Forecast product sheet, Tideworks Unified Gateway.

Signing in to Forecast

Each terminal has its own Forecast address, and you register there as a broker or freight forwarder, consignee, shipper, steamship line or trucker. The sign-in page asks for a password, with Forgot password to reset it. With Fous you sign in once through that terminal'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

One portal and one account per terminal

Every terminal has its own Forecast address, such as t18.tideworks.com for Terminal 18 in Seattle. A method works on one terminal, so you build one for each terminal you use and a workflow runs them in turn.

Your company access decides what you see

The terminal decides which parties can see and edit which data. Viewing equipment, editing bookings or running reports depends on your company's access at that terminal.

Payments depend on the terminal

Online payment works when the terminal has set it up with Mainsail Billing and a payment gateway. At Terminal 18, SSA Marine names eModal as its preferred payment platform for demurrage.

Support comes from the terminal

Tideworks asks Forecast users to contact the terminal they are trying to reach for help, not Tideworks.

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