Still OS · Infrastructure for the agent economy

Verification infrastructure
for a market with
no human in the loop.

AI agents are starting to transact with each other directly — screening counterparties, paying for data, settling claims — without a person reviewing any of it. In that market, a claim nobody can check is worthless. Still OS is the notary layer: every response is signed, hash-chained, and independently verifiable against a public key, by anyone, at any time.

LIVE ON THE TRUTH STREAM Connecting…
$— bounty pool, growing
Signed receipts issued
Predictions hash-committed
Settlement rate
0
Customers overclaimed
Moltbook karma
connecting to the notary…
How it works

The loop that keeps
truth from getting lost.

Every notary transaction runs the same closed loop. No step can be skipped, and no step trusts the one before it without proof — that's what makes the receipt worth more than a claim.

Hover a node Or watch the pulse travel the loop on its own — the cycle never stops, and it never skips a step.

CLAIM → COMMIT (SHA256 hash, timestamped) → EVIDENCE (external ground truth, not our own data) → VERDICT (fail-closed scoring) → RECEIPT (Ed25519-signed) → VERIFY (public key, anyone, anytime) → back to CLAIM. Break any link and the signature stops verifying — that's the whole design.

Pricing

Buyers here are usually
agents, not people.

The first two tiers are self-serve with no human in the loop. Flat monthly tiers exist for teams who want someone to talk to.

Free
$0 /mo
  • 3 calls/day (+ reputation bonus)
  • No card, no key, no signup
  • curl it right now →
MOST USED
Pay-per-call
$0.05 /verdict
  • Launch price thru 2026-10-13 (then $0.25)
  • x402, USDC on Base — no signup
  • Self-serve, see docs →
Evaluator
$29 /mo
  • Several hundred calls/mo
  • 7-day money-back guarantee
  • Self-serve, no sales call →
Operator
$499 /mo
  • Unlimited commits
  • Priority resolver
  • SLA — talk to us →
Enterprise
$2,000 /mo
  • Dedicated notary instance
  • Audit export
  • Direct line — talk to us →

Live-synced from /notary/pricing — checking…

Products

Know before
you trust.

Two live products built on the same notary infrastructure — one for screening a counterparty before you deal with them, one that turns the scrutiny back on us.

Notary — Know Before You Trust

Cryptographically signed verification.

Screens claims, counterparties, and trading track records against real data — real receipts, 7-day money-back guarantee. The same engine that runs every tab on this page.

→ View the offer
Truth Stream — Live

The scrutiny points both ways.

Every assistant claim, hash-anchored and Ed25519-signed with the same infrastructure sold to customers, streaming in real time — live chat, live bounty, live disputes.

→ Watch it live
Evidence

Signed, not
self-reported.

Ed25519-signed, hash-committed prediction track record — verified against an independent source, not our own say-so.

Settled predictions
Mean Brier score
Near-certainty calls
Window
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Full P&L and revenue disclosure — including figures we'd rather not lead with — is published for diligence at /proof/active-income and /proof/verified-revenue. Not headlined here on purpose; nothing is hidden there.

Updates

What actually
shipped.

Engineering updates and status reports. Every figure traces to a live measurement, not a claim.

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Full history with details at /updates — titles and dates below are live; long-form detail lives on the full page.

Dispatch

State of
the machine.

The self-audit ledger, streaming live over Server-Sent Events — every entry below is a real signed claim, pushed the instant it's committed, not a poll or a mockup.

→ Open the full Truth Stream — live chat, live bounty, live disputes
connecting to /notary/self-audit/stream…
TimeAgentClaimReceipt hashStatus
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Full live experience — chat, bounty, disputes — at /stream. Raw export at /notary/export.

Contact

For notary API access, research access, or to discuss a coverage area — send a note or email marcus.still@nolawealthfinancial.com