StillOS Notary.
29 live, Ed25519-signed, chain-linked verification endpoints — sanctions screening, trading-record grading, insider and smart-money signals, corporate distress and litigation risk. Every verdict is fail-closed and independently checkable, not a confidence score. Callable directly by AI agents over x402 and MCP — no accounts, no invoices.
Every agent-to-agent payment needs a CLEAR / REVIEW / BLOCK decision before it settles.
This is the fastest-funded category in agentic AI right now: Skyfire ($9.5M, backed by a16z CSX and Coinbase Ventures) and Nekuda ($5M, backed by Visa Ventures and Amex Ventures) built agent identity and payment execution; AIR Security raised $50M from Sequoia and Greenoaks this week alone to build a runtime firewall for AI agents. Every one of them is racing to answer the same question: is it safe to let this agent send this payment.
/notary/agent-clearance answers it today — pre-transaction OFAC screening fused with on-chain wallet clearance, collapsed into one CLEAR / REVIEW / BLOCK decision, Ed25519-signed, settled over the same x402/USDC-on-Base rails those companies are building toward. It is live now, not a roadmap item, and every decision it returns is independently checkable against the named source it cites — not an internal risk score you have to trust.
Not a dashboard. A verification layer other systems can call.
Every StillOS Notary response is Ed25519-signed and chain-linked to the prior receipt for tamper-evidence — the answer is provable after the fact, not just asserted. Verdicts are fail-closed: insufficient evidence returns a named INSUFFICIENT_DATA state, never a confident guess. Reachable three ways: direct HTTPS, MCP (tools/list at /notary/mcp), and Coinbase's own Bazaar agent-discovery catalog. Payment is x402 (USDC on Base) — no account, no invoice, no minimum.
Sanctions & risk screening
OFAC SDN, UN, and EU sanctions lists; Mexico's sanctioned-officials registry; Colombia's SIRI and procurement records; Georgia's procurement and corruption maps; URL and wallet safety scans.
screen-entity · screen-wallet · un-sanctions · eu-sanctions · mexico-sanctioned-officials · colombia-siri · georgia-corruption-map
Market & corporate signal
Insider cluster-buy conviction scoring, smart-money 13D tracking, activist-investor convergence, corporate distress scoring, water-stress risk, real-time litigation checks.
insider-conviction · smart-money · activist-convergence · distress-score · water-stress · litigation-check
Claims & track-record grading
Grade a settled trading track record fail-closed (REAL_EDGE / REGIME_LUCK / NEGATIVE_EV), score any factual claim against named sources, clear an agent's identity/reputation before a counterparty trusts it.
grade-strategy · claim-verdict · agent-clearance · commit · dispute
Try the real thing on your own domain.
DMARC, SPF, DNSSEC, SSL certificate validity, security headers, domain expiration — checked live, free, no signup, with a real Ed25519-signed receipt.
Screen a counterparty before you sign.
Any person or company name against the real, current OFAC SDN sanctions list — checked live, free, no signup. A signed, provable receipt is $0.001 via x402.
Proof Architecture
Input Signal
Raw telemetry, human inputs, or external API hooks enter the verifiable perimeter.
Cryptographic Hash
Data is immutably anchored using SHA-256, creating a unique identifier for the event state.
Resolution
Multi-source consensus validates the hash against predefined enterprise thresholds.
Signed Receipt
A cryptographically verifiable receipt is minted, authorizing subsequent agent actions.