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Simple pricing.
Pay only for results.

One proof engine, five storefronts. The flagship — chargeback defense — has no monthly fee: you pay 15% only when we win.

No subscription on the flagshipFree API tier, no cardFree verification, no account required
Pay-on-win · the flagship

Chargeback defense

We gather the evidence, build the defense package, and submit it. You pay only when we win the dispute back.

Reflex

Done-for-you dispute defense

15%
on wins only · $0 otherwise

No monthly fee. Cryptographic evidence captured before the dispute, packaged to the FRE 902(13)/(14) self-authenticating standard, and submitted automatically. Half the rate of Stripe Smart Disputes (30%) and Chargeflow (25%+).

  • Evidence package + legal framework per dispute
  • Stripe live; Shopify, PayPal, Square, WooCommerce in beta
  • No win, no fee — ever
Install on Stripe

The same pay-on-win model covers AI-agent purchases and returns & warranty disputes.

Capture & monitor

Seal the facts at checkout. Defend them later. These feed dispute defense and catch abuse before it hits.

Evidence Vault

$0.03/txn

Captures up to six evidence points — 3DS, AVS, CVC, device fingerprint, IP, authentication result — sealed with a 2-layer cryptographic timestamp before any dispute exists.

$0.02/txn with the Reflex bundle · $5/mo minimum

Learn more

Sentinel

$49/mo

Cross-merchant refund-abuse scoring on every refund. When a serial refunder hits one merchant, every Sentinel merchant sees them.

$39/mo with the Reflex bundle · 14-day trial

Learn more

Bundle and save. Install Reflex to drop Vault to $0.02/txn and Sentinel to $39/mo.

Metered · self-serve

The CertNode API

The same engine, as an API: sign critical events — an AI output, an agent action, a document — and verify them anywhere, without trusting the original system. Sign up, get a key, pay by usage.

Pay-as-you-go

0 – 100 / monthFree
100 – 10K$0.010 / signing
10K – 100K$0.007 / signing
100K – 1M$0.004 / signing
1M+$0.002 / signing

Volume rate auto-applies. Verification is always free, no account.

Three use cases, one engine

  • Sign AI outputs — multi-model neutral provenance
  • Sign agent actions — scoped to a human authorization
  • Proof-of-creation — hash + sign + anchor at creation
  • Node SDK + REST + MCP (Python SDK coming soon), public verify page on every receipt
Explore the API

Enterprise annual prepay: contact sales

Per case · concierge

Litigation-evidence casts

For active disputes headed to court: a signed, independently timestamped, Bitcoin-anchored evidence package built to the FRE 902(13)/(14) self-authenticating standard. Priced per case — we package it, your lawyer uses it.

In a fight right now? Contact us with the case.

Stripe Partner
Data Encryption
At rest + TLS in transit
Powered by Stripe
Secure Payments
TLS 1.2+
HTTPS everywhere
GDPR Ready
Privacy-first handling

Built on SOC 2 certified infrastructure (Vercel · Supabase · AWS) • Stripe Partner

Have questions?

Pricing details, billing, security, and integrations are answered on the dedicated FAQ page.

Read the FAQ

Start defending disputes today.

Installs from the Marketplace in under a minute. No monthly fee — you only pay when we win a dispute.