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Pre-payment honesty screen for any x402 endpoint. Run BEFORE paying: probes the target URL unpaid, parses its 402 challenge, cross-checks price against its /.well-known/x402 manifest and the CDP Bazaar listing, and sanity-checks the payTo wallet on-chain. Returns reachable, challenge validity, price, payTo, Bazaar match, risk flags, and a 0-100 honesty score. Public data only; no bulk dataset.

Daily reference foreign-exchange rate for any supported fiat currency pair using Frankfurter/ECB reference data. Query base and quote ISO 4217 codes. For conversion, normalization, accounting and reporting; not live trading data.

Uses rated electrical power, food mass, start and target temperature, specific heat and an explicit efficiency range supplied by the caller. Optional vessel heat, evaporation and a caller-defined hold phase can be included. It contains no recipes, recipe text, food-specific cooking claims or hidden food database; the output separates the thermodynamic lower bound from the practical range and is no

Atomic technical indicators (RSI, EMA20/50/200, MACD, ATR, Bollinger, volume) for any Kraken */USD pair and timeframe. Cheap high-frequency poll endpoint for AI trading agents (USDC on Base). Free preview: GET /signals/preview Bad input (unknown pair) returns 400; upstream outage returns 503; you are never charged for an error.

After-death checklist / what to do when an elderly parent or spouse dies: estate steps to take, survivor benefits to claim, and grief-support resources. For family and caregiver agents — informational.

Cron next-run calculator — generate future times for bounded five-field POSIX cron schedules in IANA timezones with explicit daylight-saving (DST) policies.

Fragrance note-profile lookup — note pyramid (top/middle/base), accord breakdown, molecule-level odor descriptors, who it suits, and occasion/climate fit for any perfume or cologne, grounded in fragrance community consensus and The Good Scents Company ingredient data.

Compares two submitted sample sets feature by feature and returns deterministic drift metrics. Continuous features are binned on the combined value range and receive PSI, Jensen-Shannon divergence and a Kolmogorov-Smirnov statistic; categorical features receive PSI and Jensen-Shannon divergence over exact category labels. The response names every feature, its sample counts, the metric values, the

Express Entry 2026 category checker — category membership now beats raw CRS (physicians drew at 169 vs CEC 507+). Declares your eligibility across all 10 categories (5 new in 2026, incl. the Canadian-experience trio and CAF recruits), the OBSERVED 2026 cutoff range per category, dormancy warnings (STEM: no draw in 27+ months), and a deterministic strategy read for your CRS. Source-pinned draw data

Published fact-checked episodes, newest first, with optional filters by category slug, show id or speaker slug. Paged.

Is retinol safe with vitamin C? Skincare ingredient-conflict checker — myth-vs-fact verdict on routine pairings (retinol+AHA, niacinamide+vitamin C, benzoyl peroxide+retinol), real pH/oxidation conflicts flagged separately from debunked myths, plus a layering-order suggestion.

Decode a base64 byte buffer from one character set and re-encode it into another (utf-8, utf-16le, utf-16be, latin1, ascii). Characters that the target set cannot represent, or bytes invalid for the source set, are clean 400s.

Collectible value & price check: trading card value, graded card (PSA/BGS/CGC) price, coin value, comic & vinyl record price. Returns current market value by grade and condition with recent sold comparables (eBay/Discogs) for any item: cards, coins, comics, watches, sneakers, vinyl. Worldwide. For collector and investor agents.

Compute or verify the GS1 mod-10 check digit for EAN-8, UPC-A, EAN-13, ITF-14 (GTIN-14) and SSCC numbers.

US safety recalls for a VIN, deterministic. Answers "does this car have open recalls", "is this used car safe to buy", "what NHTSA campaigns cover this vehicle". Decodes the VIN via NHTSA vPIC (year, make, model, body, engine) then lists every NHTSA recall campaign for that vehicle: component, summary, remedy, park-outside and do-not-drive flags. No LLM, no key, public domain.

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.

Current cross-asset macro conditions for crypto: liquidity, volatility, rates and upcoming calendar risk (CPI, FOMC, etc), with a per-asset directional bias only when the live composite supports one. For setting risk posture, not a daily signal feed. Not financial advice.

x402 settlement test

Trust check an npm package before an agent installs it: typosquat screen, deprecation, package age, maintainers, weekly downloads, source link.

AgentOracle: live service-health snapshot — tracked-token count, last ingestion timestamp, ingestion error counter, process uptime, and API version. Use as a cheap heartbeat before issuing larger queries.

YAML to JSON. POST a YAML document; the response is pretty-printed JSON. Anchors and aliases are resolved, and a multi-document stream converts as its FIRST document rather than as an array — the direction that bites, because YAML is the larger language.

SCDO x402: live SCDO Agent Ledger stats for AI agents

NANP area code lookup: region, state, country, timezones, current local time, toll-free/premium/geographic flags. Static authoritative dataset (450 NPAs), sub-10ms responses.

Decode a VIN into make, model, model year and vehicle attributes using NHTSA vPIC. Use when an agent has a VIN and needs structured vehicle information. Call GET ?vin= or POST JSON {"vin"}; full or partial VINs, decode errors preserved. No owner lookup.

Japanese postal-code lookup and reverse lookup. Keywords: Japanese postal lookup, Japan Post postal code, postal code reverse lookup, 日本郵便番号検索. Use a postal code or prefecture/city/ward/town components against the local Japan Post snapshot. / 通过邮编或都道府县、市区町村、区、町名字段，在本地 Japan Post 数据中进行日本邮编反查。

ETH/USD spot via AgentKit x402 — $0.001 USDC

Website abandonment check for a company domain. Fetches the homepage now and says why it is or isn't serving: hosting billing lapsed (Vercel, Squarespace, Wix), site removed from its platform, CDN origin unreachable, parked or for sale, 410 gone, bot challenge, or serving. For domains Tiag Scovik watches nightly, adds the date the current state began and up to 30 nights of history. Use before payi

Find French online stores tracked by Neoavis by name or domain, with their score out of 100 for AI shopping agents and a link to the full finding.

Planting window optimizer for grower and farmer agents. Returns optimal planting dates from live air temperature, observed soil wetness, frost dates, crop calendar, and growing-degree-day requirements.

Convert a supplied HTML string into deterministic, LLM-ready Markdown. Preserves headings, links, lists, emphasis, and code without fetching a URL or invoking an AI model. Input is bounded to 2,000,000 characters.