ProofMart

Get your key.

One key works at both doors — the REST API (POST /check) and the MCP server (POST /mcp). Pick your plan below; the key is delivered on this site, on the spot.

Free — 100 checks a month

No card, no charge. Your key is minted the moment you submit and shown once — save it somewhere safe. One free key per email address.

Pro — $29/month, ~3,000 checks included

Checkout is hosted by Stripe — your card details go to Stripe, never to this server. When the payment lands, your key is waiting on the confirmation page.

Enterprise

What Enterprise buys is the signed-receipt audit trail, arranged per deal on top of Pro. The self-serve way in is the Pro form above — start there.

Back to the front door · Service status: /health · © 2026 ProofMart