Sanctions monitoring for wallets you already screened: send up to 50 addresses and a since timestamp, get every OFAC SDN designation or delisting that touched them since then, plus when the list was last synced and whether the change log reaches back that far. Stateless: nothing is stored or pushed; pass the returned checkedAt back as since. Free: GET /v1/watch. Trial: /v1/trial.

Check the status and tracking of a physical letter previously sent via POST /api/letters. Returns render status, expected delivery date, and (for certified mail) the USPS tracking number.

Unified company lookup by exact identifier: one call, one normalized schema across French SIREN (recherche-entreprises Sirene/RNE), EU VAT (VIES validation), and global LEI (GLEIF). Returns legal name, status, address, activity code, officers, and full provenance (source, retrieval time, license). No per-register API-key signup — pay once, get consistent company data for e-invoicing, procurement, and compliance. Input: id + id_type (siren | vat | lei).

Weather ($0.004): current conditions + short forecast, worldwide. United States coordinates (or a resolvable U.S. street address) read live from the National Weather Service's own public API (api.weather.gov), U.S. government data, plus active alerts. Every other location reads live from MET Norway's global Locationforecast model (api.met.no), CC BY 4.0/NLOD-licensed public data -- current + forecast only, no alerts (say so). Neither is a resold vendor feed. Body { lat, lon } (or lat/lng…

Crypto perpetual futures funding rate, open interest, mark and index price, basis, bid and ask, order book depth and 24h volume: the latest value of every market across 19 venues (Aster Perpetuals, Avantis, Binance USD-M Futures, Bitget Perpetual Futures, Bybit Perpetuals and 14 more). DQL filter, e.g. base in (BTC). Each value carries venue timestamp, receive time and age; stale values are withheld. No charge when nothing recorded is returned. 0.005 USDC per call.

Agent-payments market snapshot, measured by us: x402 Bazaar listings, sellers, 30-day paid calls, concentration, how many sellers have real buyers, registry dead rates, wallet shelf sizes. Dated JSON.

Resolve a free-text topic, compound or material to a subject id.

What can I use instead of buttermilk, self-raising flour, creme fraiche or sour cream? Get head chef Cristopher's verified swaps: yes, no or depends (and on what), with amount and context where given, including swaps not to make. Also fresh herbs, butter, oil, sugar, flour, fresh tomatoes, fresh stock, whole spices; others get a 404 listing them. Refused, never guessed: allergens and dairy-, egg- or gluten-free swaps, storage, preserving. Only a 200 answer is charged; refusals and 404s are free.

Use for anything needing an up-to-date Brazilian benchmark rate: pricing a loan, indexing a contract, converting USD/BRL. No body required. Returns Selic (Copom policy rate), CDI (interbank rate) and USD/BRL (PTAX sell rate), each with its reference date, straight from the BCB's own SGS API.

Current weather and a 3-day forecast for any city or lat/lon - temperature, humidity, wind, conditions. No account, no API key. Try GET /weather/sample.

Scan one bounty / task / repository URL before working on it: fetches it (GitHub issues and repos via the API), runs the honeypot pattern scan (hidden HTML-comment instructions, prompt injection, credential requests, fork/star anomalies, dead or archived repos, reward anomalies) and returns a trust score, a label and every flag with its reason.

imagepeek (Tanod) image conversion: PNG, JPEG, WebP, GIF, TIFF, BMP, ICO or AVIF. Use when an image must be changed between formats such as PNG, JPEG, WebP, GIF, TIFF, BMP, ICO or AVIF.

Check npm packages before you install or upgrade. Send {"packages":["lodash@4.17.20","express"]} or a package.json (dependencies and devDependencies), up to 50 packages. Per package: latest version and publish date, whether a pinned version is behind, license, deprecation notice, weekly downloads, and known vulnerabilities from OSV with severity and first fixed version. Deterministic registry data, no LLM.

Look up a GitHub repository: stars, forks, open issues, primary language, license, default branch, topics, and last push time. One call, structured JSON. For open-source vetting, competitive analysis, and tracking project activity.

Every one of the world's 100 largest banks scored on a single Bitcoin or digital-asset activity, ranked best to worst. Pass an activity in the path: custody, spot trading, ETF access, derivatives, margin lending, stablecoins, ETP issuance, blockchain infrastructure, tokenization, yield, balance-sheet holdings, licences, underwriting, advocacy, on-chain transparency or adoption depth. Answers: which banks actually offer this today. Free /activities lists all 16; an unmatched name is not charged.

IBAN validation with no network call: ISO 13616 length and structure for every country in the SWIFT IBAN registry, the mod-97 checksum, national check digits where a public algorithm exists (FR, ES, IT, BE, NL, NO, FI, PL, PT and the Balkan countries), and the split into bank code, branch code and account. Returns the electronic and print format. Pass ibans= for up to 50 at once. No bank name or BIC lookup (no dataset is bundled).

Everything that happened since <since> that touches a universe of ~150 assets (stocks, ETFs, crypto, commodities, rates), scored into per-asset impacts. Past `since` = backtest.

Every link on the page as absolute URLs, with optional same-domain-only and visible-only filters.

Where US rates, inflation and jobs stand now, from official sources: Treasury par yield curve (1m to 30y, 10y-2y spread, inversion), BLS CPI and core CPI year over year, unemployment rate, nonfarm payrolls and monthly change, New York Fed effective fed funds rate and target range; optional monthly history. Not charged if no source answers. $0.003 USDC per call.

Public and bank holidays for 200+ countries and their regions (states, cantons) for any year, with local names. Optionally check whether a given date is a holiday. Params: country (ISO 3166-1 alpha-2, required, e.g. DE, US, CH, JP), region (e.g. BY, CA, ZH), year (default current), date (YYYY-MM-DD to check), language (e.g. en), include_observances (default false).