Start free. Pay when you scale. The protocol is always open source.
No credit card required.
psmc)14-day free trial, no card required.
Billed monthly. Annual discount available.
FAQ
What counts as an event?
Any append to a vault: decisions, notes, milestones, corrections. If you call psmc append or hit the POST /events endpoint, that's one event. Reading or verifying the vault does not count.
Is the free tier really free?
Yes. No credit card required. 100 events per month, forever. It's not a trial — it's the free tier. The 100-event limit resets on the first of each month.
Can I self-host instead?
Yes. The protocol is Apache 2.0. Run pip install provara-protocol and operate your own vault on your own infrastructure. The hosted service is convenience, not lock-in. Your vault is a portable NDJSON file — you can always export it.
What happens if I exceed the free tier limit?
You get a warning email at 80% of your monthly quota. At 100%, new appends are blocked until you upgrade or the month resets. Existing events and vault reads are unaffected — nothing is deleted.
Is my data encrypted?
Events are signed (Ed25519) and stored encrypted at rest (AES-256-GCM). Your vault's private key can optionally be held by you — bring your own key (BYOK) is available on the Developer and Team tiers. Provara never has access to a BYOK vault's signing key.