Pull your PostalOne postage statements into your systems

What you can build on PostalOne

• Find postage statements on the Dashboard

  Build this

  Searches the PostalOne Dashboard by Job ID, dates and Statement Status, including closed jobs, and opens each postage statement found.

  Takes

  Date range, Job ID (optional), statement status (optional)

  Returns

  Postage statement ID, job ID, statement status, PS Form, date of mailing, permit, pieces, total postage

• Read a job's qualification report

  Build this

  Finds a mailing job on the Dashboard by its Job ID and opens the Qualification Report linked from the job.

  Takes

  Job ID

  Returns

  Job ID, postage statement ID, report lines as shown

• Read the Mailer Scorecard for a month

  Build this

  Opens the Mailer Scorecard for a calendar month and reads each metric, with the drill-down of errors and warnings where a metric has them.

  Takes

  Month, CRID (optional)

  Returns

  Metric, pieces checked, errors, error rate, threshold, warnings

• Submit a postage statement in Postal Wizard

  Build this

  Fills in Postal Wizard from Mailing Services: PS Form, permit, date of mailing, mailing characteristics and piece counts, then submits after the certification statement.

  Takes

  PS Form, permit, date of mailing, Mailer ID, Full-Service or not, piece counts per price line

  Returns

  Confirmation, postage statement ID, total postage

Automate PostalOne 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 postage statements, checked each morning

  Build this

  Starts

  Every weekday at 7:00

  Step 1

  Find the postage statements on the PostalOne Dashboard dated yesterday, closed jobs included.

  Step 2

  Keep the statements whose status or total postage changed since the last run, and the new ones.

  Step 3

  Email you the list with job ID, PS Form, pieces and total postage.

• Postage statements handed to accounting

  Build this

  Starts

  Every weekday at 18:00

  Step 1

  Find today's postage statements on the PostalOne Dashboard.

  Step 2

  Keep the statements that were not there on the last run, and stop when there are none.

  Step 3

  Post each one, with permit, date of mailing, pieces and total postage, to your accounting system's webhook.

• Mailer Scorecard changes during the month

  Build this

  Starts

  Every weekday at 9:00

  Step 1

  Read the Mailer Scorecard for the current month.

  Step 2

  Keep the metrics whose errors or error rate changed since the last run.

  Step 3

  Email you each one with its threshold and warnings.

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 “Find postage statements on the Dashboard” would look like.

curl https://api.fous.com/v1/runs \
  -H "Authorization: Bearer $FOUS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "method": "gateway.usps.com/find_postage_statements",
    "input": {
      "from": "2026-11-09",
      "to": "2026-11-11",
      "job_id": null
    }
  }'

{
  "status": "completed",
  "data": {
    "statements": [
      {
        "postage_statement_id": "PS-0048213",
        "job_id": "ACME1109",
        "statement_status": "Finalized",
        "ps_form": "3602-R",
        "date_of_mailing": "2026-11-10",
        "permit": "Permit Imprint 1234",
        "pieces": 18450,
        "total_postage": 6921.37,
        "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.

PostalOne’s own options

PostalOne takes electronic documentation three ways: Mail.dat files, Mail.XML web service messages and Postal Wizard. Mail.dat and Mail.XML come from mailing software built to USPS technical specifications, which USPS revises several times a year. Postal Wizard is entered by hand on the site, and postage statements and qualification reports are read on the Dashboard.

Read on November 12, 2026: Electronic Documentation (eDoc), How to Submit Mail.XML Jobs to PostalOne, Postal Wizard Fact Sheet.

Signing in to PostalOne

PostalOne is reached through the Business Customer Gateway, where you enter your username and password and select Sign In. The first user to register a business location becomes its Business Service Administrator, who decides who may use each service. With Fous you sign in once through the Gateway's own sign-in with your own account, and the login is sealed with AES-256.

Worth knowing

Closed jobs are hidden by default

To find a job's postage statement on the Dashboard, USPS's guides say to set Statement Status to ALL and check Include Closed Jobs before you search.

Scorecard numbers move until the 10th

The Mailer Scorecard covers a calendar month and is updated daily. Verifications on a month's mailings continue until the 10th day of the following month.

Access is granted per business location

Each business location has its own CRID. The Business Service Administrator of that location decides who can use a service there, so a method sees only what your account was granted.

Postal Wizard has limits

In Postal Wizard a Full-Service mailing must be fewer than 50K pieces, and a mailing is either 100% or 0% Full-Service, never mixed. Intelligent Mail barcodes need separate software.

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