Pricing

Vector memory for AI agents.
Built on professional cloud providers. Priced like infrastructure should be.

7-day free trial
Hosted
$5 /mo
Free for 7 days, then $5/mo
Best for solo developers who use multiple AI tools.

1 tenant · 1 seat · unlimited agents writing into it.

Bring ChatGPT, Claude, Cursor, and your own scripts into one memory.
Included caps
  • 25,000 vectors
  • 50,000 ops / month
  • 20 req / min
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Most popular
Enterprise
$49 /mo
+ $9.99 / seat
Best for one team or department.

1 tenant per subscription · multi-seat · unlimited agents per seat.

Need separate workspaces for Engineering and Marketing? Buy one Enterprise per team.
Included caps
  • 2,000,000 vectors
  • 5,000,000 ops / month
  • 600 req / min
  • Additional seats $9.99 each
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Enterprise Custom
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Multiple tenants, dedicated infrastructure, custom SLAs.
What's included
  • Custom limits
  • Dedicated infrastructure
  • SLA guarantees
  • Negotiated seat counts
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7-day free trial — Hosted plan

Start free. Your card isn't charged until day 8. Cancel before then and you owe nothing. No hoops, no emails asking why you left.

Walk-away guarantee

If HeurChain doesn't make your AI smarter — or you're unhappy for any reason — export your entire vault as JSON and leave. We'll cancel your subscription and you won't be charged.

What's a tenant? A seat? An agent?

A tenant is your data silo — its own memory, key, and downloadable vault.
A seat is a human login.
An agent is any AI tool (ChatGPT, Claude, Cursor, custom) that reads or writes into a tenant.
Full definitions in our Terms →

Fair use & hard caps

All plans run on shared infrastructure with professional cloud providers. To keep things fast for everyone:

  • Hard caps are enforced. Hosted is capped at 25K vectors and 50K ops/month. Enterprise is capped at 2M vectors and 5M ops/month with a 500 GB/month egress soft-cap.
  • Sustained usage above Enterprise caps (>14M vectors or >40M ops/month) requires migration to Enterprise Custom. We give 30 days notice.
  • The $9.99 seat add-on charges per additional team member who needs an account. (Today: seat enforcement is honor-system; proper per-seat invites coming soon.)
  • Upgrade or downgrade anytime via the Stripe Customer Portal — link sent in your welcome email.