Lacre Core
Free
- Unlimited receipts and agents, self-hosted
- Local hash chain, single-node SQLite
- CLI with --json on every command
- Local chain verification
- Offline evidence-bundle verification
- MIT licensed, no time limit, no agent cap
Pricing
Writing receipts and verifying them stays free on every plan. You pay for evidence a third party can check: anchored evidence bundles (how a bundle will be made), and later Cloud to run the collector and anchoring for you.
An evidence bundle is a signed, timestamped export of a chain range that an auditor verifies offline.
Evidence bundle
$15 each
Opens soon
Bundles open soon: Checkout is not open yet, so nothing can be bought or charged here today.
- Pay as you go, no subscription
- You need Lacre Core running from source and recording your agent’s receipts first
- Covers the receipts already recorded when the bundle is made, and is timestamped then
- You send your chain file, lacre.db: the database Core keeps your receipts and agents’ public keys in. Never your signing key (agent.key.json)
- You get back your chain head timestamped by a public RFC 3161 authority, in an archive an auditor verifies offline
- JSON, with a human-readable PDF and HTML report
- Made by hand today: emailed within 2 business days of receiving your chain file
- The timestamp proves the chain existed when it was anchored, not earlier
Cloud
$490/yr
2 months free against 12 monthly payments
Early access: not on sale yet. The hosted collector and continuous anchoring are still being built.
Planned, not available yet
- Continuous anchoring, batched, at most 15 minutes apart
- 5 bundles/month, no rollover
- $10 per extra bundle
- 10 agent identities included
- $4/mo per extra identity
- 90-day retention
- 1M receipts/month fair-use cap (not billed)
When Cloud is available, evidence bundles over the 5 included each month will be charged monthly at $10 per bundle.
Enterprise
Contact us
- Retention and anchoring cadence set by contract
- Volume beyond the Cloud fair-use cap
- Terms agreed with you, not listed here
How a bundle will be made
After checkout we email you to ask for your chain file, lacre.db. It holds your receipts and your agents’ public keys; your signing key stays with you and we never ask for it. We timestamp the head of that chain with a public RFC 3161 authority and email the bundle back within 2 business days of receiving the file: JSON, with a human-readable PDF and HTML report. The timestamp proves the chain existed when we anchored it, not earlier.
Join the early access list
Evidence bundles and Cloud are not open yet. Leave your details and we will email you when they open. No payment details are asked for.
Questions
What is a receipt?
A record of one action an agent took, hash-chained to the receipts before it so a later change shows. Writing receipts and verifying them is free on every plan.
What is an evidence bundle?
An evidence bundle is a signed, timestamped export of a chain range that an auditor verifies offline. Your chain head is timestamped by a public RFC 3161 authority.
What does the receipts/month fair-use cap mean?
Cloud lists a 1M receipts/month fair-use cap. It is not billed: receipts are not charged for. Volume beyond the Cloud fair-use cap is an Enterprise term.
Do I need a subscription to buy an evidence bundle?
No. The evidence bundle is pay as you go, no subscription, at $15 each.