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Curated shelf: Environmental Issues — 461 public-domain books including Wealth of the World's Waste Places and Oceania, Devon, Its Moorlands, Streams and Coasts, The Origin of Species by Means of Natural Selection Or, the Preservation of Favoured Races in the Struggle for Life, 6th Edition. Returns a ranked list with drill-down routes for full-text retrieval. No license, no API key required.

Exact registry-number lookup: OFAC ent_num, Colorado entity id, or Florida document number, scoped by jurisdiction.

Ask a question about Grimms' Fairy Tales and get back the most relevant passages from the book itself, with chapter and location citations. Retrieval only — full-text search, not a generated summary or answer. No license, no API key required.

Org enrich / company enrichment by domain or name. Firmographics pack: name, employees, country, industry, website. $0.04 keyless x402. Apollo-shaped optional (format=apollo_org). ?identifier=stripe.com

List posts from one specific LinkedIn person profile by URL (not a keyword search — use linkedin.posts.search.list to search across public posts).

USD Coin

Scan any OpenClaw SKILL.md for malware, prompt injection, exfiltration, and 37 other threat patterns. Returns risk score 0-100 and detailed findings.

Curated shelf: E456 — 551 public-domain books including Sword and Pen Ventures and Adventures of Willard Glazier, Lincoln's Birthday : $b a comprehensive view of Lincoln as given in the most noteworthy essays, orations and poems, in fiction and in Lincoln's own writings. Returns a ranked list with drill-down routes for full-text retrieval. No license, no API key required.

x402 Agent-Demand Intelligence — what AI agents actually try to buy, ranked. Derived from the live request log of an origin that x402 agent crawlers already index: 402 payment quotes are revealed intent (an agent asked the price of a call), so the ranking shows what the agent economy is shopping for right now, by endpoint and by category. HOW TO CALL: GET /api/demand/top?days=7&limit=25 PARAMETERS: days — lookback window, 1-90 (default 7) limit — endpoints returned, 1-100 (default 25) RESPONSE: endpoints[] ranked by payment quotes, each with category, hits, and a bucketed buyer count; by_category[] rollup; coverage metadata. PRIVACY: aggregate-only. No per-client logs are sold. Rows seen by fewer than 3 distinct clients are withheld and client counts ship as buckets. PRICING: $0.05 per call.

What should you charge? Pricing guidance from three crossed datasets. Measured agent demand per category, the price percentiles the field actually charges from the public x402 catalogue, and observed conversion by price band — resolved into a suggested price with the reasoning attached. HOW TO CALL: GET /api/demand/pricing?category=market-data PARAMETERS: category — optional; omit for every category RESPONSE: categories[] with observed demand, field price percentiles, competing origin count, a suggested price and its rationale. PRICING: $0.10 per call.

Narrative — price momentum + live news sentiment + theme tag for one asset. HOW TO CALL: GET /api/narrative?ticker=NVDA PARAMETERS: ticker — asset symbol (required) RESPONSE: price_action{momentum,trend,direction}, news{sentiment,rating,headline}, themes[]. PRICING: $0.05 per call.

Signal History — full log of every signal fired, with outcomes. Shows internal algo signals and x402 API signals. Pending signals (horizon not yet reached) show actual_return_pct=null. HOW TO CALL: GET /trading/signals/history GET /trading/signals/history?ticker=BTC&source=internal&limit=20 PARAMETERS: ticker — filter to one ticker (optional) limit — max rows (default 50, max 200) source — 'internal' | 'x402' (optional) include_pending — include unresolved signals (default true) PRICING: $0.05 per call.

Demand-to-supply matching — unmet agent demand crossed against who already sells it. Each row pairs something agents ask for and cannot get with the number of origins already selling in that category, so you can tell a genuine product gap from a distribution problem. A lead list if you already sell there; a build order if nobody does. HOW TO CALL: GET /api/demand/matches?days=7&limit=25 PARAMETERS: days — lookback window, 1-90 (default 7) limit — rows returned, 1-100 (default 25) RESPONSE: matches[] with the wanted path, request volume, bucketed asker count, existing supplier count, field median price, and a verdict. PRICING: $0.10 per call.

Signal Performance — historical win rate, avg return, Sharpe ratio, per-ticker breakdown. Aggregates all resolved signals from both the internal algo and x402 callers. Outcomes resolved at forward_days horizon using actual prices. This is the track record that proves the pattern engine has edge. HOW TO CALL: GET /trading/performance GET /trading/performance?ticker=BTC&last_n_days=90 PARAMETERS: ticker — filter to one ticker (optional) last_n_days — lookback window 7–365 (default 90) RESPONSE: win_rate_pct, avg_return_pct, sharpe_ratio, total_resolved, by_ticker PRICING: $0.05 per call.

Portfolio Factors — price-based factor decomposition of a book (clean_prices.db). HOW TO CALL: GET /api/portfolio-factors?holdings=xyz:NVDA:1000,BTC:500 PARAMETERS: holdings — TICKER:weight pairs, HL-format tickers (required) lookback — estimation window in days, 60–250 (default 120) RESPONSE: notional-weighted momentum, trend, book beta to S&P 500 and BTC. PRICING: $0.05 per call.

Live Signals — latest algo signal per requested asset. HOW TO CALL: GET /api/signals/live?assets=BTC,ETH,xyz:NVDA PARAMETERS: assets — comma-separated tickers (required) limit — log rows to scan, 1–200 (default 50) RESPONSE: signals[] with direction, confidence, kelly_half, entry/exit price, resolution. PRICING: $0.05 per call.

Backtest — historical-analog forward-return distribution for a ticker's recent shape. HOW TO CALL: GET /api/backtest?ticker=BTC&lookback_days=20&forward_days=30 PARAMETERS: ticker — asset symbol (required) lookback_days — pattern window, 5–60 (default 20) forward_days — forward horizon, 7–90 (default 30) min_return / max_return — optional analog filters (fraction) RESPONSE: win rate, median, tails, sample size over the forward horizon. PRICING: $0.10 per call.

Crawl-to-refer — what each AI company takes from a site versus what it sends back. Per company: pages crawled, visitors referred, and the ratio between them, measured at an origin's own door. Every publisher wants this number for their own site and cannot compute it without being the origin being crawled. HOW TO CALL: GET /api/demand/crawl-to-refer?days=30 PARAMETERS: days — lookback window, 1-90 (default 30) RESPONSE: by_company[] with crawls, referrals and the ratio, plus an explicit caveat on mixed-use crawlers whose referrals cannot be attributed to search or AI. PRICING: $0.10 per call.

Unmet agent demand — the endpoints agents ask for and cannot get. 404s and gated 401/403s from real (non-scanner) agent clients: a shopping list with the customers already attached. This cut is invisible to anyone who is not the origin being asked, which is why it cannot be reconstructed from public bazaar data. HOW TO CALL: GET /api/demand/unmet?days=7&limit=25 PARAMETERS: days — lookback window, 1-90 (default 7) limit — rows returned, 1-100 (default 25) RESPONSE: unmet[] sorted by volume, each with the signal (404/401/403), category, hit count and bucketed count of distinct askers. PRIVACY: aggregate-only; rows below 3 distinct clients withheld. PRICING: $0.05 per call.

Declared-intent demand — what agents SAID they needed, not just which endpoint they hit. Sourced from the free /api/discover agent router: the natural-language need an agent typed, its willingness-to-pay (from reported outcomes), and where it actually went (referrals = revealed preference). This is intent the endpoint-hit radar structurally cannot see. HOW TO CALL: GET /api/demand/intent?days=7&limit=20 PARAMETERS: days — lookback window, 1-90 (default 7) limit — top terms / origins returned, 1-50 (default 20) RESPONSE: top_declared_needs[], willingness_to_pay{median/p90/max}, top_chosen_origins[], helped_rate, our_top_rank_rate. Aggregate-only. PRICING: $0.05 per call.

Provider reliability — the supply-side reputation the 6-question agent loop needs. Observed at our door: which origins agents chose via the free router and whether it actually helped — helped-rate (Laplace-smoothed), repeat-rate, and sample confidence. Not asserted, measured; a provider is neutral until agents report back. HOW TO CALL: GET /api/demand/reliability?days=90&limit=25 PARAMETERS: days — lookback window, 1-365 (default 90) limit — providers returned, 1-100 (default 25) RESPONSE: providers[] {origin, reliability, confidence, helped, outcomes_rated, referrals, repeat_rate}. Aggregate-only; thin rows withheld. PRICING: $0.05 per call.

x402 conversion reality — do payment quotes ever become payments? Measured quote-to-pay rates by category and by price band, from tens of thousands of observed 402s. Price your endpoint against what the market actually converts at instead of guessing, and rule out the protocol-level defects that silently zero a funnel before you blame your price. HOW TO CALL: GET /api/demand/conversion?days=30 PARAMETERS: days — lookback window, 1-90 (default 30) RESPONSE: overall funnel, by_category[] and by_price_band[] conversion rates, plus the measurement method so you can judge the number. PRIVACY: aggregate-only, reported by category and price band, never per endpoint. PRICING: $0.05 per call.

x402 supply census — who is live, in what category, at what price. The full public discovery index (~14.8k resources) normalised into per-category price percentiles and per-origin catalogues, so you can price against the median instead of the loudest listing. Crossed with the half that is not public: which agent client stacks actually crawl a live origin, and therefore which ones will find your endpoint once you ship it. HOW TO CALL: GET /api/demand/competitors?category=market-data&limit=40 PARAMETERS: category — optional filter (market-data, crypto-onchain, trading-signal, ai-inference, media-gen, web-search, enrichment, social, messaging, storage, other) limit — origins returned, 1-100 (default 40) RESPONSE: catalog.by_category[] price min/p25/median/p75/max, catalog.top_origins[], and ecosystems_crawling[] observed over 7 days. PRICING: $0.05 per call.

Sector Momentum — 11 GICS sectors + themes ranked by ETF momentum, with leader names. HOW TO CALL: GET /api/sectors/momentum?lookback=60 PARAMETERS: lookback — momentum window in trading days, 20–250 (default 60) RESPONSE: sectors[] ranked hottest-first, each with momentum, trend, breadth, leaders[]. PRICING: $0.05 per call.