Security & trust

Livecheck Sentinel check - one-shot URL condition check. POST /v1/check with {target, condition, baseline_hash?}. Detectors: status_change, keyword, text_diff, numeric_threshold. Returns current observation + fired when comparable. Fixed $0.02 USDC. No watcher created. Not /v1/verify ($0.01) and not Confirm.

Screen one address against sanctions and scam blocklists — Genesis402 / UnyKorn Operator Network

Identity oracle and trust layer for autonomous AI agents. Bidirectional KYA and trust scoring.

Trust-check any dependency for agents: OpenSSF Scorecard, licenses, CVEs, deps. 7 ecosystems.

Search and verify 360K+ business entities with trust scores and W3C credentials.

Self-hosted MCP server: 26 deterministic dev, security, and EVM tools.

Runs your code against a contract; HELD or BROKE at the exact input. Deterministic. 0.10 USDC/call.

DNS, IP, AS, domain reputation, and Lightning Network intelligence (44 tools)

Read-only MCP server for turva.dev, an agent-readiness audit and advisory service.

Security gateway for AI agents: policy, approval, and audited execution, no secrets shared.

Marketplace-evidence trust scores for AI agents: a 0-100 Evidence Score with signal breakdown.

Risk score for Brazilian companies from registry, reputation and protest records by CNPJ.

dilisense MCP — sanctions / PEP / criminal / adverse-media screening (AML/KYC)

Sanctions Screening MCP — screen people, companies, vessels, and aircraft

Calculate required trucks or containers, verify shipment fit, and manage Haulista loading plans.

Trust registry for agents: check_trust verdict A0-A4, signed fact passports, honest refusals.

Trust infrastructure for AI agents. Directory, jobs, verification, and 360 feedback.

Read-only product discovery, merchant trust, shipping and returns for SVV-Schatzoekers.

AI-agent trust infrastructure for discovery, authority, execution, verification, and receipts.

Look up CVEs, CISA KEV, EPSS and open-source package vulnerabilities, including malicious packages.

Spot Check. REQUIRES ?host= on the paid request — a signed request without it is refused before the gate and no money moves. Name a host and get what this observatory already holds on it, signed: corpus rounds and verdicts as recorded, when we last actually knocked, our coverage of the window since we met it, and the gaps with their reasons. Read from the books at the counter — no request is made to the host, so the answer is as fresh as our last round and no fresher, and sa…

Semaphore ZK Proof Verifier: Verify a Semaphore ZK proof locally using Groth16 (embedded official vkey). No external dependency. Send the proof object from @semaphore-protocol/proof generateProof(). Pay per call in USDC on Base via x402 — POST https://x402.freeq.one/tools/verify_semaphore.

Batch Semaphore Proof Verifier: Batch verify up to 10 Semaphore proofs in a single request. Returns per-proof results with total count and average duration. Pay per call in USDC on Base via x402 — POST https://x402.freeq.one/tools/verify_batch.

Check whether a website, business, or wallet is a scam before an agent trusts or pays it — fraud, phishing and rug-risk screening. Returns verdict (safe/caution/avoid), trust_score, domain age, red_flags. Input: ?target=domain

Strait of Hormuz per-vessel intelligence: the live-AIS vessel manifest (MMSI-keyed, flag derived from the MMSI MID), the OFAC-sanctioned vessels currently in the Persian Gulf window with program detail, per-vessel risk bands, latest raw AIS positions, the top AIS-dark hulls with the full dark count alongside, and OFAC + UK sanctions reference-list sizes (per-IMO multi-body detail at /api/premium/vessel/{imo}).

Top stables ranked by mcap with peg deviation (now/24h/7d) + stability score + risk

Deep x402 audit: the full endpoint audit plus a live probe for rail coverage (Base/Solana), multi-rail detection, HTTP status, and latency — a premium trust report on any x402 endpoint.

Keccak Merkle proof verifier — validate inclusion plus exact leaf index and count proof shape for the Atlas sorted-pair tree profile.

JSON Web Key (JWK) inspector — validate bounded public RSA, EC, or Ed25519 keys and calculate RFC 7638 SHA-256 thumbprints without ownership or trust claims.

Check whether a wallet is KYC-eligible for a gated (RWA / tokenized-treasury) yield. Returns the normalized KYC status and, when required, where to complete verification — call before actions_enter on gated yields.