Receipts - AgentaOS

When a payment clears, AgentaOS emails the buyer a receipt at the email they gave at checkout. You do not send it or build it. The receipt belongs to the paid invoice, and you can send it again if the buyer loses it. AgentaOS also emails you when you make a sale. A receipt exists only for a paid invoice. An open or voided invoice has no receipt.

In the dashboard

In the sidebar, click Invoices, then open a paid invoice from the Paid tab.

Download receipt saves the receipt PDF.
Resend invoice emails the receipt to the buyer again. The button is grayed out when the invoice has no buyer email.

A paid invoice INV-2026-0001 for €12.40 with the buttons Download invoice, Download receipt and Resend invoice, the invoice preview from AgentaOS (Aristokrates OÜ) as merchant of record for ClientCo, and the details with the receipt number RCP-2026-0001 — A paid invoice: Download invoice, Download receipt and Resend invoice.

Send a receipt again

Resending goes to the buyer’s email on the invoice, the same address as the first receipt. Only an owner or an admin can resend a receipt.

SDK
CLI
cURL

const result = await agentaos.invoices.sendReceipt('invoice-uuid');
console.log(result.sentTo); // the address it went to

agenta invoices send-receipt invoice-uuid

curl -X POST https://api.agentaos.ai/api/v1/gateway/invoices/invoice-uuid/send-receipt \
  -H "x-api-key: sk_live_..."

The call returns { ok: true, sentTo }. It fails when the invoice is not paid, or when the invoice has no buyer email.

Download the receipt PDF

SDK
CLI
cURL

import { writeFileSync } from 'node:fs';

const pdf = await agentaos.invoices.getReceipt('invoice-uuid');
writeFileSync('receipt.pdf', pdf);

agenta invoices receipt invoice-uuid -o receipt.pdf

curl https://api.agentaos.ai/api/v1/gateway/invoices/invoice-uuid/receipt \
  -H "x-api-key: sk_live_..." \
  -o receipt.pdf

An invoice from before receipts existed on AgentaOS has no receipt document. For that invoice, the call returns the invoice PDF, which is also a proof of payment.

Next steps

Invoices

The invoice behind every receipt.

Customers

Where the buyer’s email comes from.