Simple Pricing
Pay for what you use.
Start free. Buy credits when you need more. No subscriptions required unless you want unlimited.
Free
No credit card required
- 1 use per day (anonymous)
- 3 uses per day (free account)
- All AI tools (Architect, Auditor, Gas Optimizer, Tokenomics)
- View results in browser
- 1 HTML or SVG download per day
- History not saved
- No ZIP download
- Prompt not shown after generation
Create free account for 3× daily uses
Starter
$3.80 per use
Credits valid 90 days
- 5 credits — usable on any AI tool
- Credits valid 90 days
- No daily limits
- Single format downloads (HTML/SVG/PNG)
- ZIP package — all diagrams + formats
- Audit history saved
- Architecture history saved
- Original prompt visible after generation
- No draft saving
Pro
$2.45 per use
Credits valid 180 days
- 20 credits — usable on any AI tool
- Credits valid 180 days
- Everything in Starter
- Save architecture drafts
- Compare audits side by side
- Priority processing
- Best value — $2.45 per use
Unlimited
Cancel anytime
- Unlimited use across all 4 AI tools
- No daily limits ever
- Everything in Pro
- AI Fix suggestions on findings
- Priority support
- Cancel anytime
All plans include: Full AI analysis · Severity rankings · Export reports · No hidden fees · Powered by Claude AI
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Launching today on Product Hunt
Common questions
What is 1 Blockhertz credit?+
1 Blockhertz credit equals 1 use of any AI tool on the platform. Credits can be used on the AI Smart Contract Auditor, AI Architecture Generator, AI Gas Optimizer, or AI Tokenomics Designer interchangeably.
How much does Blockhertz cost?+
Blockhertz offers a free tier with up to 3 uses per day at no cost. Paid plans include: Starter Pack at $19 for 5 credits valid 90 days, Pro Pack at $49 for 20 credits valid 180 days, and Unlimited Plan at $99 per month for unlimited usage of all AI tools.
Do Blockhertz credits expire?+
Yes. Starter Pack credits (5 credits, $19) expire after 90 days from purchase. Pro Pack credits (20 credits, $49) expire after 180 days from purchase. Unlimited Plan subscribers have no credit expiry as long as the subscription is active.
Can I try Blockhertz for free?+
Yes. Blockhertz offers a free tier with up to 3 uses per day shared across all AI tools. No credit card required. Sign up at blockhertz.com/tools to start using the AI Smart Contract Auditor, AI Architecture Generator, AI Gas Optimizer, and AI Tokenomics Designer for free.