Explore APIs

Compare two packaged foods by barcode: Nutri-Score, NOVA, and per-100 g energy, sugars, saturated fat, salt, fibre and protein.

Add or subtract N business days from a date, skipping weekends and your holiday list, WORKDAY style.

Check whether two words or phrases are anagrams, ignoring case, spaces, punctuation and accents; shows the letter differences.

Preview jobs by filters (step 1). Call before job-collect. Page 1–5, 20/page, $0.10/page. Returns id, title, location, company_name, created, _score; pagination; next.collect when results exist. No description, salary, or URLs — use job-collect for full records.

Carbon-to-nitrogen ratio of a compost mix by the Cornell formula, or the greens-to-browns amounts that reach a target ratio.

Signatures, press sheets and blank pages needed for a book of N pages at 4, 8, 16 or 32 pages per signature.

Sheet-metal bend allowance, outside setback, bend deduction and flat length from angle, radius, thickness and K-factor.

Exact age from a birth date: years, months, days, total days, weeks and hours, birth weekday and days to the next birthday.

Wax and fragrance oil weights for container candles from jar size, fill level, wax density and fragrance load.

Read one public URL and return clean bounded page content with a SHA-256 content hash.

Aquarium volume in US gallons and litres from inside dimensions, usable water after substrate, and the water's weight.

Latest NDBC buoy observation: wind, gust, waves, swell, pressure and water temperature, with a Beaufort and sea-state screen.

Air changes per hour (ACH) from airflow and room volume, or the CFM needed for a target ACH.

Recent earthquakes worldwide above a magnitude, newest or largest first, optional bounding box, with a match count.

Get live EVM gas pricing with EIP-1559 breakdown and USD cost estimates

Caffeine remaining after hours, and the time until it drops below a threshold, from a half-life you can set (default 5 hours).

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.

Japanese address normalization (住所正規化): standardize a JP address into clean prefecture / city / town / chome-banchi components. Fixes fullwidth/halfwidth digits, old-form kanji, and chome-banchi notation variants, and resolves the 7-digit postal code. Returns a 0-1 confidence score so agents can flag low-quality input. Use for address validation, cleansing, deduplication, and canonicalization befo

Check an exact npm or PyPI package version immediately before installation using current registry, vulnerability, malicious-package, withdrawal/deprecation, and verified provenance evidence. Returns ALLOW, REVIEW, BLOCK, or UNKNOWN with machine-readable reasons.

Lima consumer price inflation — latest monthly CPI percentage change for Metropolitan Lima, Peru. Track inflation and purchasing power trends with the reference month.

Split EVM calldata into its 4-byte selector and 32-byte words, naming common ERC-20/721 calls and spotting addresses.

Clean-sheet probability — goalkeeper stats, defensive metrics, home/away split, BTTS and under-2.5 analysis. For football betting agents.

Brazil IPCA inflation — latest monthly consumer-price change in percent. Track inflation and purchasing-power trends with the reference month.

Bayes' theorem: posterior probability from a prior, sensitivity and false-positive rate, with natural frequencies and odds form.

UUID inspector — parses any UUID (canonical, braces, URN or 32-hex form) and returns its version, variant, embedded timestamp for v1/v6/v7, nil/max flags, hex and URN forms. Use to validate identifiers or recover the creation time of UUIDv7 keys.

Sample autocorrelation (ACF) and partial autocorrelation (PACF, Durbin-Levinson) of a series up to lag k, with 95% bounds.

Which US federal income tax bracket a taxable income falls in: marginal rate, bracket edges and dollars to the next bracket.

Sentence BLEU (1-4 gram, brevity penalty, optional smoothing) and ROUGE-1, ROUGE-2, ROUGE-L F1 for text against references.

Critical depth where Froude number is 1 (Q^2/g = A^3/T) for rectangular, trapezoidal, triangular or circular channels.

Floyd-Warshall all-pairs shortest distances for up to 100 nodes; negative weights ok; detects negative cycles.