# Get your Airgas invoices and cylinder balances by API

> Read your open invoices, cylinder balances and order history from Airgas.com with one API call each. Or have a workflow hand the week's new open invoices to accounts payable every Monday, for every account on your login.

Page: https://fous.com/automate/airgas
Updated: 2026-11-12

Works with your own Airgas account. Fous is an independent product.

## What you can build on Airgas.com

### Get open invoices

Reads Open Invoices under Invoices for the account you pick, with each invoice's dates, amount and payment status.

- Takes: Account (optional)
- Returns: Account, invoice number, invoice date, due date, amount, payment status

### Get cylinder balances

Reads the cylinder balance for the account you pick: how many cylinders of each kind you hold.

- Takes: Account (optional)
- Returns: Account, cylinder type, gas, cylinder description, cylinders held

### Check order status

Reads Order History for the account you pick, with each order's status and tracking.

- Takes: Account (optional), ordered since (optional)
- Returns: Order number, order date, PO number, status, items, tracking

### Reorder from order history

Opens a past order in Order History, creates a new order from it, sets the quantities and places it with your PO number.

- Takes: Account, past order number, quantities, PO number
- Returns: Order number, status, items, total

## Automate Airgas.com with a workflow

A [workflow](/product/workflows) 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.

### Open invoices to accounts payable, every account

Starts: Every Monday at 7:00

1. For each account on your login, get the open invoices.
2. Keep the invoices that were not there on the last run.
3. Post each one with account, invoice number, due date and amount to your ERP webhook.

### Monthly cylinder balance check

Starts: On the 1st of every month at 8:00

1. For each account, get the cylinder balances.
2. Keep the cylinder types whose count changed since the last run.
3. Email you the changes, one section per account.

### Order status changes, each morning

Starts: Every weekday at 7:30

1. For each account, check order status for orders placed in the last 30 days.
2. Keep the orders whose status changed since the last run.
3. Email you order number, PO number, new status and tracking.

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](/product/methods), it is one POST to /v1/runs from your backend, or a tool an AI agent calls over MCP. This is what “Get open invoices” would look like.

Example request:

```
curl https://api.fous.com/v1/runs \
  -H "Authorization: Bearer $FOUS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "method": "www.airgas.com/get_open_invoices",
    "input": {
      "account": "4410072"
    }
  }'
```

Example response:

```
{
  "status": "completed",
  "data": {
    "account": "4410072",
    "account_name": "Acme Fabrication, Plant 2",
    "invoices": [
      {
        "invoice_number": "9871204455",
        "invoice_date": "2026-10-31",
        "due_date": "2026-11-30",
        "amount": 1842.65,
        "currency": "USD",
        "payment_status": "Open"
      }
    ],
    "count": 1,
    "total_open": 2159.05
  }
}
```

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.

## Airgas.com’s own options

Airgas connects to customers' procurement systems through its eBusiness Solutions team: punchout through Airgas SupplySync, hosted catalogs, and orders, confirmations, ship notices and invoices by cXML or EDI. Its pages describe no developer API for your account data. Invoices, cylinder balances, order history and delivery receipts are on Airgas.com.

| Option | What it covers | What it takes |
| --- | --- | --- |
| Punchout and hosted catalogs | Shopping from your eProcurement platform: the Airgas SupplySync punchout site, cXML or OCI punchout, or hosted catalogs. | Set up with the Airgas eBusiness Solutions team, through its form or your local eBusiness group. |
| cXML and EDI documents | Inbound orders, and outbound order confirmations, ASNs and invoices. | Configured with the eBusiness Solutions team for your platform, such as SAP Ariba, Coupa, Jaggaer or Oracle. |
| Digital PODs and autopay | Proof of delivery receipts by email and in your account; automatic payment of invoices by ACH or card. | A sign-up form for digital PODs. Autopay is enrolled on Airgas.com for a Sold To account or single Ship To locations. |
| Airgas.com by hand | Open Invoices and invoice history, order history and tracking, cylinder balances, PODs, COAs and SDSs, one account at a time. | An Airgas.com account, registered with a recent invoice and validated in 1 to 2 business days. |

Read on November 12, 2026: [Airgas eBusiness Solutions](https://www.airgas.com/solutions/ebusiness-solutions), [Airgas Online Bill Pay](https://www.airgas.com/onlinebillpay), [Airgas Digital PODs](https://www.airgas.com/solutions/supply-chain-solutions/digitalpods).

## Signing in to Airgas.com

Airgas.com signs you in with your email address and a password. It can remember your username, but asks for the password on each visit. With Fous you sign in once through Airgas.com's own sign-in with your own account: the login is sealed with AES-256, code and AI agents never see it, and an expired session is signed back in.

## Worth knowing

- **Several accounts under one login**: Airgas.com can group several business accounts under a single login, and you switch between them with Switch Account. Build each method to take the account as an input, so a workflow can loop over all of them.
- **PODs appear within 24 hours**: Once you are enrolled, digital proof of delivery receipts show in your account within 24 hours. Bulk, MicroBulk, tube trailer, shipping and common carrier deliveries are excluded.
- **Autopay timing depends on how you pay**: With a bank account, autopay drafts on the invoice due date. With a card, it drafts when the invoice is generated. Since September 15, 2025, credit card payments on open invoices carry a 3% surcharge for customers with extended credit.
- **Requisitions can hold an order for approval**: Airgas.com lets you set up buyers with purchase limits and approvers who approve or reject purchases. A reorder placed by such a buyer follows the same rules.

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## Frequently asked questions

### Does Airgas have an API?

Not a developer API for your account data. Airgas offers punchout through Airgas SupplySync, hosted catalogs, and orders, order confirmations, ASNs and invoices by cXML or EDI, set up with its eBusiness Solutions team. Open invoices, cylinder balances and order history are on Airgas.com.

### Can I pay several Airgas invoices at once?

Yes. On Airgas.com, open Invoices, choose Open Invoices and pay several at once by ACH or card. Since September 15, 2025, credit card payments on open invoices carry a 3% surcharge for customers with extended credit; ACH, debit cards, checks and autopay do not.

### How do I see cylinder balances for all my Airgas accounts?

Group the accounts under one Airgas.com login, then switch between them to read each balance. Airgas also lets you set how often you receive account and cylinder balance reports. With Fous, a workflow can loop over your accounts on a schedule and email you the balances.

### How long does a new Airgas.com account take?

Airgas says validation takes 1 to 2 business days. Current customers need a recent invoice to register, and online gas purchases and pricing stay restricted until the account is validated.

### Is Fous affiliated with Airgas?

No. Fous is an independent product. You use it with your own Airgas.com account, and a method reads and does only what that account can.

Fous is an independent product: it is not affiliated with, endorsed by or sponsored by the operator of Airgas (Airgas (Air Liquide)). The name is used only to say which system this page is about. Something here wrong or out of date? Write to legal@fous.com.