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Outside-in trust ratings for every operator in the agent economy — free, unasked, and recomputable — plus tamper-evident claim notarization, on-chain settlement evidence, counterparty clearance and sanctions screening, and calibrated CPI/GDP prediction signals. Agent Node Ratings grades 7,070 MCP o…
Everything here was measured by our prober or read from a registry. Nothing is self-reported.
30-day availability735/735 checks ok
30 days agotoday
Endpoints
https://stillosdigitalholdings.coma2a · auth: none · checked on a schedule
Registry facts
Not distributed through a package registry we index.
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4 min ago
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card: StillOS Signal + Notary · 108 skills
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card: StillOS Signal + Notary · 108 skills
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card: StillOS Signal + Notary · 108 skills
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card: StillOS Signal + Notary · 108 skills
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card: StillOS Signal + Notary · 108 skills
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card: StillOS Signal + Notary · 108 skills
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card: StillOS Signal + Notary · 106 skills
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card: StillOS Signal + Notary · 106 skills
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card: StillOS Signal + Notary · 106 skills
Declared by sources
What the publisher says
Attributed to the source that supplied each field. Treated as claims, not facts.
Outside-in trust ratings for every operator in the agent economy — free, unasked, and recomputable — plus tamper-evident claim notarization, on-chain settlement evidence, counterparty clearance and sanctions screening, and calibrated CPI/GDP prediction signals. Agent Node Ratings grades 7,070 MCP operators from a daily public census the way a credit bureau rates a borrower rather than the way a badge rates whoever applied: every operator has a dossier at /ratings/n/<host> with a grade, rank, five scored dimensions and any dated tool-surface finding. The rated operator never pays. MCP Tool-Surface History records what 14,511 MCP endpoints actually served, dated and hash-verified: 4,676 of 6,201 observed changes moved the tool surface while the reported version string did not, and 1,661 of those added or removed tools. Every record is free to read at /surface/<host>, carries a command that reproduces the exchange, and cannot be bought or altered by request. 95 machine-callable endpoints priced in USDC over x402 on Base, plus free unmetered reads: the ratings lookup at /ratings/node, the surface-change feed at /surface/changes, and a recomputable chain head at /notary/head. Political-markets Brier 0.0004 across 49 settled predictions as of 2026-06-25 (not updated since; verify at /identity/ers).
Notary Chain Head — FREE. Per-period sealed head of the notary receipt chain: tip receipt hash, receipts in period, cumulative count. Fully recomputable from the public receipt log, so a reader can tell idle from down without trusting us. GET /notary/head.
Settlement Evidence Preview — FREE. Cached settlement state for a counterparty wallet, no fresh chain reads. GET /settlement/preview?payTo=<address>. The paid /settlement call re-derives it live against chain truth.
MCP Tool-Surface History — FREE, no account, no payment. Dated hash-verified observation records for 14,511 MCP server hosts: every observed change to the tool surface, whether the version string moved with it, which tools were added or removed, and the content hash before and after. Measured across the corpus: 4,676 of 6,201 changes moved the surface while the reported version did NOT, and 1,661 of those added or removed tools. Each record embeds schema.org Dataset JSON-LD and a curl command that reproduces the underlyi…
/notary/dispute — Prove a signed StillOS verdict wrong against its own cited source. We re-run the resolver independently; if it overturns, you are owed up to $1 from the on-chain correctness bond. Deterministic verdicts only. $0.25 filing fee, non-refundable either way (anti-spam) -- separate from the bond payout, so a dispute that overturns nets you +$0.75. $0.25 USDC on Base via x402. POST /notary/dispute.
/bazaar-v2/grade-strategy — StillOS Edge-Gate — grade a settled strategy track record: fail-closed REAL_EDGE|REGIME_LUCK|NEGATIVE_EV|INSUFFICIENT_DATA verdict, out-of-sample + fee/slippage adjusted, Ed25519-signed receipt. REQUIRES AT LEAST 31 settled trades: two gates apply, min_n=30 AND a chronological 70/30 split where both halves need >= 10, so exactly 30 returns INSUFFICIENT_DATA ("split too thin") — 31 is the real floor. Each trade MUST be {t:ISO, price:0<p<1 (a PROBABILITY, not a dollar price), side:"yes"|"no", out…
/bazaar-v2/claim-verdict — StillOS Notary — signed claim verdict, resolved against external ground truth, Ed25519-signed, hash-chained. Commit-before-outcome: the claim hash is published before the result is known, so it can't be edited after the fact -- unlike self-reported agent logs, this is claims-grade evidence for parametric AI-agent liability coverage. Backed by a $10 on-chain correctness bond, up to $1 slashable per proven-wrong verdict -- verify at /notary/bond, dispute at /notary/dispute. [Settles through Coinb…
/bazaar-v2/screen-entity — StillOS — OFAC SDN sanctions name screen, signed receipt, source_as_of freshness timestamp included. [Settles through Coinbase's CDP facilitator rather than the StillOS self-hosted one — same price and same signed response as the non-Bazaar twin of this product.] $0.001 USDC on Base via x402. POST /bazaar-v2/screen-entity.
Pricingusage from 0.001 USD
kind ← Verified owner
name ← Verified owner
pricing ← Verified owner
summary ← A2A Agent Card
description ← A2A Agent Card
homepageUrl ← A2A Agent Card
publisherUrl ← A2A Agent Card
publisherName ← A2A Agent Card
Derived by Wellknown
Capabilities
Mapped onto the structured taxonomy from declared text and observed tool names. Confidence shown for derived entries.
19 d ago · declared · description → "Outside-in trust ratings for every operator in the agent economy — free, unasked, and recomputable — plus tamper-eviden
19 d ago · declared · summary → "Outside-in trust ratings for every operator in the agent economy — free, unasked, and recomputable — plus tamper-eviden
26 d ago · declared · description → "Tamper-evident claim notarization, recomputable on-chain settlement evidence, counterparty clearance and sanctions scre
26 d ago · declared · summary → "Tamper-evident claim notarization, recomputable on-chain settlement evidence, counterparty clearance and sanctions scre
1 mo ago · declared · summary → "Tamper-evident claim notarization, recomputable on-chain settlement evidence, counterparty clearance and sanctions scre
1 mo ago · declared · description → "Tamper-evident claim notarization, recomputable on-chain settlement evidence, counterparty clearance and sanctions scre
1 mo ago · declared · pricing → {"from":0.001,"model":"usage","notes":"31 endpoints priced in USDC on Base via x402 (eip155:8453), $0.001-$1.00. Free: /
1 mo ago · claimed · ownership → {"method":"well_known_file","target":"stillosdigitalholdings.com"}
2 mo ago · declared · protocols → ["a2a"]
2 mo ago · declared · summary → "Calibrated CPI/GDP prediction signals, tamper-evident claim notarization, and machine-readable trust data."
2 mo ago · declared · publisherUrl → "https://stillosdigitalholdings.com"
2 mo ago · declared · publisherName → "Still OS Digital Holdings"
/bazaar-v2/screen-wallet — StillOS — OFAC digital-currency-address screen: exact-match a crypto wallet address against OFAC SDN-linked BTC/ETH/TRX/USDT/LTC/XMR/etc. addresses, signed receipt. [Settles through Coinbase's CDP facilitator rather than the StillOS self-hosted one — same price and same signed response as the non-Bazaar twin of this product.] $0.001 USDC on Base via x402. POST /bazaar-v2/screen-wallet.
/bazaar-v2/trust-score-bulk — StillOS — bulk domain trust-posture audit: up to 25 domains in one paid call, each graded A-D on DMARC/SPF/DNSSEC/CAA/TLS, returned with one combined Ed25519-signed receipt and a public verify URL. The single-domain scan is free at /notary/trust-score/scan; this is the batch tier for an agent screening many counterparties at once. [Settles through Coinbase's CDP facilitator rather than the StillOS self-hosted one — same price and same signed response as the non-Bazaar twin of this product.] $0.…
/bazaar-v2/un-sanctions — StillOS — UN Security Council Consolidated Sanctions List name screen, signed receipt. [Settles through Coinbase's CDP facilitator rather than the StillOS self-hosted one — same price and same signed response as the non-Bazaar twin of this product.] $0.001 USDC on Base via x402. POST /bazaar-v2/un-sanctions.
/bazaar-v2/eu-sanctions — StillOS — EU Consolidated Financial Sanctions List name screen, signed receipt. [Settles through Coinbase's CDP facilitator rather than the StillOS self-hosted one — same price and same signed response as the non-Bazaar twin of this product.] $0.001 USDC on Base via x402. POST /bazaar-v2/eu-sanctions.
/bazaar-v2/mexico-sanctioned-officials — StillOS — Mexico official government registry of sanctioned/disqualified public officials (SFP/SESNA, datos.gob.mx), signed receipt. [Settles through Coinbase's CDP facilitator rather than the StillOS self-hosted one — same price and same signed response as the non-Bazaar twin of this product.] $0.001 USDC on Base via x402. POST /bazaar-v2/mexico-sanctioned-officials.
/bazaar-v2/colombia-siri — StillOS — Colombia official disciplinary-sanctions registry (Procuraduria SIRI, datos.gov.co), signed receipt. [Settles through Coinbase's CDP facilitator rather than the StillOS self-hosted one — same price and same signed response as the non-Bazaar twin of this product.] $0.001 USDC on Base via x402. POST /bazaar-v2/colombia-siri.
/bazaar-v2/screen-crypto-trader — StillOS — copy-trade track-record trust score: Wilson-lower-bound-adjusted win rate + sample-size + capped P&L composite score for a crypto copy-trader, signed receipt. [Settles through Coinbase's CDP facilitator rather than the StillOS self-hosted one — same price and same signed response as the non-Bazaar twin of this product.] $0.001 USDC on Base via x402. POST /bazaar-v2/screen-crypto-trader.
/bazaar-v2/screen-history — StillOS — proves what a URL actually said at a point in time (Internet Archive Wayback Machine), optional keyword-claim check against the archived page, signed receipt. [Settles through Coinbase's CDP facilitator rather than the StillOS self-hosted one — same price and same signed response as the non-Bazaar twin of this product.] $0.01 USDC on Base via x402. POST /bazaar-v2/screen-history.
/bazaar-v2/georgia-corruption-map — StillOS — mirror of Transparency International Georgia's published "Corruption Map" (query/category), signed receipt. THIRD-PARTY SOURCED: every result carries its own TI Georgia citation link; StillOS asserts nothing independently. [Settles through Coinbase's CDP facilitator rather than the StillOS self-hosted one — same price and same signed response as the non-Bazaar twin of this product.] $0.01 USDC on Base via x402. POST /bazaar-v2/georgia-corruption-map.
/bazaar-v2/distress-score — StillOS — balance-sheet distress ranker for a single equity ticker (Altman Z-score from live SEC XBRL, held-out AUC 0.769 — a ranking input, not an alarm /, held-out AUC 0.769 — ranking input, not an alarm), signed receipt. [Settles through Coinbase's CDP facilitator rather than the StillOS self-hosted one — same price and same signed response as the non-Bazaar twin of this product.] $0.15 USDC on Base via x402. POST /bazaar-v2/distress-score.
/bazaar-v2/agent-clearance — StillOS — real-time pre-transaction clearance for agent-to-agent payments: the identity + anomaly check emerging agent-payment-trust standards (e.g. IETF draft-sharif-agent-payment-trust) describe before an autonomous agent sends funds. OFAC SDN sanctions screen + live on-chain wallet signals (contract status, balance, transaction count, recipient risk) fused into a CLEAR/REVIEW/BLOCK verdict (equivalent to ALLOW/ALLOW_WITH_LIMITS/DENY), Ed25519-signed receipt as the audit trail. [Settles throu…
/bazaar-v2/settlement — StillOS Settlement Oracle — recomputable on-chain settlement evidence for a counterparty payTo (Base/XRPL/Solana): has it ever been paid, by how many distinct senders, with the raw reads + block height, Ed25519-signed. Not a score: every field is re-derivable against the chain yourself. Free state-only preview at /settlement/preview. [Settles through Coinbase's CDP facilitator rather than the StillOS self-hosted one — same price and same signed response as the non-Bazaar twin of this product.] …
/bazaar-v2/signal-cpi — StillOS Signal — calibrated model probability for a Kalshi CPI-print market, priced against the live BLS nowcast rather than the market mark. Returns model_p, market_p, edge_cents, nowcast. Query ?ticker=KXCPI-... [Settles through Coinbase's CDP facilitator rather than the StillOS self-hosted one — same price and same signed response as the non-Bazaar twin of this product.] $0.01 USDC on Base via x402. GET /bazaar-v2/signal-cpi.
/bazaar-v2/signal-gdp — StillOS Signal — calibrated model probability for a Kalshi GDP-print market, scored against the live GDP nowcast rather than the market mark. Returns model_p, market_p, edge_cents, nowcast. Query ?ticker=KXGDP-... [Settles through Coinbase's CDP facilitator rather than the StillOS self-hosted one — same price and same signed response as the non-Bazaar twin of this product.] $0.01 USDC on Base via x402. GET /bazaar-v2/signal-gdp.
/bazaar-v2/change-feed — StillOS Change Feed — what measurably changed in the agent economy since you last asked. Daily deltas over seven dated series that cannot be reconstructed retroactively by anyone, including us: MCP registry census, jev conformance clock, dual-attested joint observation windows, the notary receipt chain, line-clock, self-audit history, revenue ledger. Each response carries the sealed tablet digest plus its notary receipt hash, free to verify at /notary/verify?hash=. Pass ?since=<tablet number | …
/notary/export — Full machine-readable export of the StillOS notary corpus: every Ed25519-signed, hash-chained receipt and resolved verdict, with verdict_reproducibility stated over the whole corpus so you can see what fraction of our own ledger is independently re-derivable. Every receipt is verifiable at /notary/verify?hash=. Free preview: ?preview=true. $2 USDC on Base via x402. GET /notary/export?preview=true is free and unmetered -- last 10 receipts and last 10 verdicts, plus verdict_reproducibility comput…
/provenance — Commit a SHA-256 hash of an AI reasoning token (OpenAI encrypted_content / Anthropic thinking signature) to the live StillOS notary chain, with an optional co-commitment of the visible answer. The token is NEVER decrypted. Returns an Ed25519-signed, hash-chained receipt verifiable at /notary/verify?hash=. Scope stated in every response: this proves the artifact existed and has not changed since commitment -- it does NOT prove provider identity, model authorship, or generation time. $0 USDC on B…
/ratings/node — Outside-in trust rating for an MCP operator host, computed from a daily public census -- the way a credit bureau rates a borrower, not the way a badge rates whoever applied. Returns grade, rank within 7,070 rated operators, five scored dimensions, x402 payment-readiness, and any dated tool-surface finding on that host (a tool set that changed while the served version string did not). An unrated host returns found:false and says so: unobserved is NOT attested safe, it means ~55% remote coverage …
/ratings/offer.json — The priced tiers for StillOS Agent Node Ratings, each carrying the DERIVATION of its number rather than a figure to take on faith. The rated operator pays nothing, permanently. Machine lookup settles at $0.05/call over x402 on Base -- the only price here derived from an observed settlement rather than from a comparable. $0 USDC on Base via x402. Free and unmetered.. GET /ratings/offer.json.
/notary/trust-score/scan — FREE, no signup, no wallet, one HTTP call. Signed domain trust-posture audit: DMARC, SPF, DNSSEC, CAA, SSL validity, security headers, registry expiration. Returns a letter grade (A best to D), a risk_score (higher = MORE gaps) and an inverted trust_score, each finding in plain language, an Ed25519 signature and a public verify URL a stranger can recompute. Passive checks only. A non-resolving domain is refused, never graded. Embeddable badge at /notary/trust-score/badge?domain=. $0 USDC on Bas…
/notary/trust-score/badge — Embeddable SVG grade badge for any domain, for a README or docs page. Re-renders from a fresh scan every 30 minutes so it cannot go stale. Renders whatever the scan returns, including a bad grade -- low grades are not suppressed, and StillOS grades its own domain by the same rule (B+, not A). $0 USDC on Base via x402. Free and unmetered. 30-minute server-side cache so an embed cannot hammer the scanner.. GET /notary/trust-score/badge.
/notary/seo-scan/scan — Signed technical-SEO and machine-readability audit of a URL, with an Ed25519 receipt and a public verify URL. Embeddable badge at /notary/seo-scan/badge?url=. $0 USDC on Base via x402. Free and unmetered.. GET /notary/seo-scan/scan.
/notary/funnel-score/scan — Signed conversion-funnel audit of a URL -- what a buying visitor or agent can actually do on the page -- with an Ed25519 receipt and a public verify URL. Embeddable badge at /notary/funnel-score/badge?url=. $0 USDC on Base via x402. Free and unmetered.. GET /notary/funnel-score/scan.
/settlement — RECOMPUTABLE on-chain settlement evidence for a counterparty wallet (Base/XRPL/Solana): has this payTo address ever actually been paid, by how many distinct senders, with the raw reads and block height returned. Not a score -- the underlying chain reads, so you can re-derive the answer yourself. Query param: ?payTo=<address>. $0.05 USDC on Base via x402. GET /settlement/preview is free and unmetered -- returns cached state only, no fresh chain reads. GET /settlement.
/notary/commit — Commit a claim hash -- tamper-evident, Ed25519-signed receipt, no resolver attached. $0.1 USDC on Base via x402. POST /notary/commit.
/notary/claim-verdict — Commit a claim, resolve it against a named external resolver, receive a signed verdict. $0.25 USDC on Base via x402. Free tier: 3/day. POST /notary/claim-verdict.
/notary/grade-strategy — Grade a settled trading track record: fail-closed REAL_EDGE|REGIME_LUCK|NEGATIVE_EV|INSUFFICIENT_DATA verdict, Ed25519-signed. $0.25 USDC on Base via x402. Free tier: 2/day. POST /notary/grade-strategy.
/identity/transaction — FREE. Get a signed, quote_id-stamped price quote for any StillOS paid endpoint before you call it. Takes {endpoint, agent} and returns price_usd with base_price_usd and the multipliers applied — your payment standing, counterparty reputation, and EV score each move the number, so a paying agent in good standing is quoted below list. Also the callback/settlement registry: POST a callback URL here to be notified on settlement. 25/day free per agent. $0 USDC on Base via x402. Free tier: 25/day. PO…
/signal/cpi — Calibrated model probability for a Kalshi CPI-print market, priced against the live BLS nowcast rather than the market mark. $0.01 USDC on Base via x402. Free tier: 10/day. GET /signal/cpi.
/signal/gdp — Calibrated model probability for a Kalshi GDP-print market, scored against the live GDP nowcast rather than the market mark. $0.01 USDC on Base via x402. Free tier: 10/day. GET /signal/gdp.
/signal/portfolio — Current signed StillOS position book snapshot: open positions, model view per position, and staleness timestamp. $0.05 USDC on Base via x402. Free tier: 10/day. GET /signal/portfolio.
/notary/agent-clearance — Pre-transaction OFAC + on-chain wallet clearance for agent-to-agent payments, fused into CLEAR/REVIEW/BLOCK. $0.25 USDC on Base via x402. Free tier: 40/day. POST /notary/agent-clearance.
/notary/screen-entity — OFAC SDN sanctions name screen, signed receipt with source-freshness timestamp. $0.001 USDC on Base via x402. Free tier: 5/day. POST /notary/screen-entity.
/notary/distress-score — Balance-sheet distress ranker for a single ticker (held-out AUC 0.769 / ~109d lead), live SEC fetch. $0.15 USDC on Base via x402. Free tier: 3/day. POST /notary/distress-score.
/notary/insider-conviction — Proprietary conviction score over EDGAR Form 4 insider cluster buys, signed receipt. $0.1 USDC on Base via x402. Free tier: 3/day. POST /notary/insider-conviction.
/notary/smart-money — Proprietary 13D activist x insider conviction composite, signed receipt. $0.1 USDC on Base via x402. Free tier: 3/day. POST /notary/smart-money.
/notary/regulatory-rules — Search recent Federal Register RULE documents by agency and/or keyword, signed receipt. $0.02 USDC on Base via x402. Free tier: 3/day. POST /notary/regulatory-rules.
/notary/federal-awards — Search top-100-by-amount federal contract award snapshot (trailing 30 days), signed receipt. $0.02 USDC on Base via x402. Free tier: 3/day. POST /notary/federal-awards.
/notary/self-audit/dispute-entry — File a dispute against a self-audit claim, entering the real bounty pool. Disclosed split: 80% to the pool, 20% StillOS platform fee, same every time. $2 USDC on Base via x402. POST /notary/self-audit/dispute-entry.
/notary/screen-url — Real-time URL safety scan (Cloudflare URL Scanner): malicious/phishing verdict, page metadata, public scan-page link. Signed receipt. $0.02 USDC on Base via x402. Free tier: 3/day. POST /notary/screen-url.
/notary/screen-text — Real-time scam/phishing/harmful-content text classifier (Cloudflare Workers AI, Llama Guard 3 8B): unsafe verdict + harm category. Signed receipt. $0.02 USDC on Base via x402. Free tier: 5/day. POST /notary/screen-text.
/notary/screen-history — Proves what a URL said at a point in time (Internet Archive Wayback Machine): snapshot list, closest-to-date snapshot, optional keyword-claim check. Signed receipt. $0.01 USDC on Base via x402. Free tier: 15/day. POST /notary/screen-history.
/notary/screen-wallet — OFAC digital-currency-address screen: exact-match a crypto wallet address against OFAC SDN-linked addresses (BTC/ETH/TRX/USDT/LTC/XMR/etc.), source-freshness timestamp. Signed receipt. $0.001 USDC on Base via x402. Free tier: 5/day. POST /notary/screen-wallet.