Agent Invoice - for humans & AI agents

Agent Invoice: simple invoicing software.
Zero commissions.
Agent Ready.

Stop paying for bloated accounting suites that skim your revenue. Send a professional invoice in under a minute, get paid by card, PayPal, or bank ACH - and keep 100% of every dollar. Your AI agents can even bill for you.

Start invoicing free
  • Free plan - no credit card
  • Set up in under a minute
  • Works with Stripe & PayPal

Payments processed by Stripe & PayPal

256-bit encryption•PCI-DSS certified payment processing

Everything included

Everything you need to get paid - nothing you don't

Skip the bloated accounting suites. Agent Invoice focuses on the tools that actually shorten the gap between "invoice sent" and "money in the bank."

Stripe & PayPal in one click

Connect both gateways in seconds. Clients pay by card, PayPal balance, Apple Pay, or bank ACH - whatever gets you paid fastest.

Deposits and partial payments

Take half up front and bill the rest on delivery. Record each payment as it lands and the invoice tracks the balance itself - clients see what they have paid and what is left.

Automated payment reminders

Friendly nudges go out before, on, and after the due date, chasing the balance still owed rather than the original total. Stop following up by hand.

Know when emails are opened

Real-time read receipts on every invoice email. See exactly when a client viewed your bill, straight from the dashboard.

Your brand, everywhere

Logo, brand colors, and design templates sync across PDFs, emails, and checkout pages. Send from your own domain with custom SMTP.

QuickBooks & Xero exports

One-click CSV exports formatted for your accounting stack. Reconciliation without the copy-paste.

ACH, checks & physical mail

Accept low-fee bank transfers, show check instructions, or let us print and mail invoices via USPS for paper-first clients.

Recurring invoices on autopilot

Set a schedule once and retainer invoices generate and send themselves. Weekly, monthly, or any cadence you like.

Estimates that become invoices

Send a quote, get it approved, then convert it to an invoice in one click - line items, totals, and client details carried straight across.

How it works

From signup to paid in 3 steps

Designed to minimize friction and respect your time.

1

Connect your gateways

Link Stripe and PayPal with your existing credentials. Secure client billing is authorized instantly.

2

Draft your invoice

Add client details, line items, and taxes. Toggle payment options like ACH or cards per invoice.

3

Get paid

Clients pay through a secure checkout link. Funds land in your bank - no commissions taken.

Built for the agentic era

Your AI agents can bill clients while you sleep

Agent Invoice is the first invoicing platform designed for autonomous workflows. Hand your agents an API key and they can create clients, draft invoices, send billing emails, and react to payments - end to end.

  • Full REST APIComplete CRUD for invoices and clients, with calculated totals and taxes.
  • Outbound webhooksinvoice.created, invoice.sent, and invoice.paid events pushed to any endpoint.
  • MCP serverNative Model Context Protocol support so Claude and other AI agents invoice conversationally.
  • n8n, Zapier & MakeRoute payment events to QuickBooks, Slack, Google Sheets, and thousands of apps.
create-invoice.sh
curl -X POST https://agent-invoice.com/api/invoices \
  -H "Authorization: Bearer ie_live_****" \
  -d '{
    "client_id": "4ac01bb6-fc9c",
    "due_date": "2026-08-01",
    "tax_rate": 8.25,
    "line_items": [{
      "description": "Consulting",
      "quantity": 2,
      "unit_price": 50.00
    }]
  }'

# → 201 Created - invoice INV-1001
# → webhook: invoice.created fired

Frequently asked questions

Setup, security, and payment processing - answered. Still curious? .

No. Your clients receive a professional billing page where they can review the invoice, download the PDF, and pay immediately via credit card, PayPal, or bank ACH with a secure one-click checkout. They never have to register.

Your business name, logo, and contact details appear front and center. Agent Invoice only powers the billing page and secure checkout behind the scenes - and on paid plans you can remove platform branding entirely.

Funds from credit cards, bank ACH, and PayPal are deposited directly into your connected Stripe and PayPal accounts. Payouts to your bank typically arrive within 1-2 business days.

Yes. Toggle credit cards, PayPal, and bank ACH on any invoice. Clients authorize secure instant bank transfers through Stripe, which carries significantly lower processing fees than cards.

On the Agency Pro plan you get a secure REST API key and an MCP server. Your AI agents or backend systems can create clients, draft invoices, send billing emails, and react to payment webhooks - fully autonomously, with your branding.

Yes. The free plan includes 10 invoices a month, unlimited clients, logo upload, Stripe & PayPal payments, and PDF downloads. No credit card required, and you can upgrade anytime.