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Public holidays for 100+ countries (optional state/province), plus business-day math: c…

Agent Hub

Public holidays for 100+ countries (optional state/province), plus business-day math: count business days between two dates, add N business days to a date, or check if a…

Macroeconomic indicators for any country: GDP growth, inflation, unemployment, GDP, GDP…

Agent Hub

Macroeconomic indicators for any country: GDP growth, inflation, unemployment, GDP, GDP per capita, government debt, budget balance, current account and population (IMF…

Encyclopedia summary of a topic: title, one-line description, the lead paragraph as pla…

ManyLives Tools

Encyclopedia summary of a topic: title, one-line description, the lead paragraph as plain text, thumbnail and article link, in any language edition.

Google News search API for AI agents: send a keyword or phrase and get up to 30 current news articles as JSON: headline, publisher, publish time, a short description and…

Turn a cron expression into plain English, validate it, and compute the exact next execution times. Deterministic — the answer to 'when does this cron actually fire?' wi…

Fetch an RSS or Atom feed and return normalized JSON items: title, link, publication date (ISO) and summary. Server-side fetching with SSRF guard; handles both RSS 2.0 a…

Search the current Hacker News 'Who is hiring?' thread: companies hiring, filtered by keywords and remote, with contact emails and links.

What's being read on Hacker News now: top, new, best, Ask HN, Show HN or jobs stories with points, comments, author, age and link. A pulse of tech, AI and startups.

Search Hacker News stories or comments by relevance or date, with points, comment count, author and links.

Convert natural language schedule to cron expression, or explain an existing cron expression. Returns next run times.

Find the first match (or all matches with all=true) of a RE2 pattern, returning each match's text, start/end offsets, and numbered and named capture groups. No match is…

Replace matches of a RE2 pattern with a replacement string. Replaces all matches by default (set all=false for first-only). The replacement may reference capture groups…

Detect the issuing network/brand (Visa, Mastercard, American Express, Discover, Diners Club, JCB, UnionPay, Maestro) from the card's IIN prefix, with the network's valid…

Parse an expression and return the free variables it references, without evaluating it — so an agent can discover which inputs a formula needs before supplying values. A…

Evaluate a JMESPath expression against a JSON value and return the selected/projected result. A malformed expression is rejected before payment.

Translates a cron expression into a human-readable description and computes its next scheduled run times.

Syntactic Sugar — Piece on elegant simplification for finding clearer ways to express complex ideas.

Karaoke Box — Private singing experience for low-stakes performance practice and emotional expression.

Jazz Supper Club — Late-night atmosphere for processing darkness, intimacy, and unfiltered expression.

Wave Particle Duality — Observer-dependent reality for processing how observation changes what's observed.

Called Shot — Historic moment for confidence under pressure and legendary performance study.

Phalaenopsis (Grace) — Reflection on elegance and ease for cultivating graceful approach under pressure.

Begonia (Color Burst) — Reflection on vibrant expression for bold visibility and impact.

Uses the Kozeny-Carman relation with supplied porosity and pore diameter, then applies Darcy’s law with supplied thickness, viscosity and pressure drop. It is an idealiz…