GAP Receipts

Invoices that prove they're real.

Every invoice gets a SHA-256 cryptographic signature and a permanent public verify link. Clients confirm authenticity in one click. No login. No account. No doubt.

Get Started — $29/mo → See Live Demo
SHA-256 Signature on every invoice
<200ms Verify page, Cloudflare edge
4 tiers Solo · Pro · Teams · Agency
$0 Per invoice — flat monthly only
Pricing

Pick your tier. Cancel anytime.

No contracts, no setup fees, no per-invoice charges. Stripe handles the checkout.

Solo
$29/mo
For freelancers and solo operators sending signed invoices.
  • 1 seat
  • Tamper-evident signing
  • Public verify links
  • Stripe Connect payments
  • REST API (500 req/day)
  • AI line-item parser
Pro
$79/mo
For small teams that need more API headroom.
  • 3 seats
  • Everything in Solo
  • 2,000 API req/day
  • Project grouping
  • Priority email support
Most Popular
Teams
$149/mo
For growing businesses with multiple billing staff.
  • 5 seats
  • Everything in Pro
  • Org-level API key management
  • Admin + member roles
  • 5,000 API req/day
Agency
$299/mo
For agencies serving multiple clients under your own brand.
  • Unlimited seats
  • Everything in Teams
  • White-label verify pages
  • Multi-org management
  • Dedicated support
How It Works

Three steps from job done to proof.

1

Create the invoice

POST to /v1/invoices with your line items. A SHA-256 hash is generated and stored alongside the invoice record.

2

Share the verify link

Every invoice gets a permanent URL at /verify/INV-XXXX. Send it to your client. No login required to view.

3

Client pays inline

The verify page has a Stripe Checkout button. Payment routes directly to your connected Stripe account — not through GAP.

See what your clients see — a verified, signed invoice with a live pay button:

View interactive demo on gapindustriesllc.com →