Other

Look up US colleges by name via the Dept. of Education College Scorecard: state, out-of-state tuition, overall admission rate, and undergraduate size. Live gov data.

Inspect the TLS certificate of any public host: subject, issuer, validity window, days remaining, SANs, and SHA-256 fingerprint.

Validate an ISBN-10 or ISBN-13 checksum (hyphens/spaces ignored) and report which format it is.

Current effective federal funds rate (current, as of date, in percent) plus a trailing N-day history of {date, value}. Source: FRED DFF (Board of Governors), a daily series that includes weekends.

The SEC's bulk Form 13F Data Sets: every quarterly (2013Q2-2023Q4) and rolling three-month (2024-) archive the SEC publishes, newest first, with its window, size and download URL, plus the seven tables each archive carries (SUBMISSION, COVERPAGE, OTHERMANAGER, OTHERMANAGER2, SIGNATURE, SUMMARYPAGE, INFOTABLE) and the readme. Read from sec.gov's own listing, cached 6 hours. Pair with edgar-13f-dataset-head to read a bounded head of one table without downloading the archive.

Line-by-line diff of two texts (LCS). Returns unified-style ops and change counts. Up to 2000 lines per side.

Generate ULIDs (sortable, timestamp-prefixed identifiers).

Count characters, words, lines, and (optionally) occurrences of a substring in text.

Add (or subtract) a duration to a date. duration like "2d", "-3h", "1w 2d", "90m". Returns the resulting UTC ISO timestamp.

Atomically increment (or decrement) a numeric key and return the new value - a coordination primitive for counters, locks, and rate budgets shared across agents. Creates the key at 0 if absent. Retry safely with a requestId: a repeat with the same id returns the first answer and counts once; a retry without one counts again.

Vet an x402 seller before integrating: how many resources the domain lists, its 30-day call volume, its best-adopted endpoint, its price range (min/median/max USDC per call), and its most-used endpoints. The aggregates cover the whole daily Bazaar sweep, so 'not listed' means the domain offers nothing in it at all. The endpoint list is served from the searchable slice instead; resources_servable and resources_complete say how much of the domain that list reaches, before you read it.

+1 more from datastand.dev

Trending topics and breaking stories across tech, dev, science, business, culture, politics, and entertainment — aggregated from multiple public sources with regional and time-window filters. Flat sub-cent price per call; the cheap first stop for what is happening right now.

Store payload to Shared Hold boundary - 0.005 USDC per successful hold

Deterministic structural failure inspection of a caller-declared control mesh. Structural evidence only; never authorizes execution. 0.01 USDC per request.

Validate an IMO ship identification number check digit.

+4 more from trade.chainverdict.xyz

Send a question about longevity, aging, or lifespan science. Returns a request ID to poll for the AI-generated answer from Aubrai, VitaDAO's decentralized co-scientist.

+1 more from x402-api.aubr.ai

Percentage helper. op: "of" (a% of b), "change" (% change a→b), "ratio" (a is what % of b).

Latest US unemployment rate (current, as of date) plus a trailing N-month history of {date, value} for trend, seasonally adjusted, in percent. Source: FRED UNRATE (Bureau of Labor Statistics). A month with no published value is listed in missingDates rather than dropped silently.

Deep web research on any topic

+10 more from win.oneshotagent.com

Every form on a page with its action, method and fields (name, type, label, required, options), so an agent knows what a page asks for before interacting. Read only: nothing is submitted. Body: {url}.

+6 more from api.x-402.online

All NHL teams with ID, abbreviation, and city. Use team IDs to query schedules and standings.

+19 more from fanfare.run

Xynaptic AO Digest — filtered French public procurement calls (trade + department, France).

+11 more from api.xynaptic.io

CoinStats current Fear & Greed Index — sentiment score from Extreme Fear (0) to Extreme Greed (100)

+2 more from x402.coinstats.app

Pay once for virtual admission to Agentic Commerce Demo Day

Public URL status, latency, and response header subset for uptime and health agents

Calculate Euler totient function phi(n) for a given positive integer n.

+6 more from sovereign-x402-zeta.vercel.app

Creates or inspects H3 cells and optionally returns neighbors or changes resolution. Missing facts are returned as null and named in unavailable_fields where applicable. Derived values disclose their method; source-backed values disclose source, time window and age.

+7 more from geo.halowerk.com

Selects a published emissions factor by activity, region and source edition. Missing facts are returned as null and named in unavailable_fields where applicable. Derived values disclose their method; source-backed values disclose source, time window and age. This is neither legal advice nor customs advice.

+1 more from klima.halowerk.com

Returns the latest instantaneous values at a USGS streamgage, together with what makes them readable. A stage of three point four feet means nothing on its own, so each value is placed against the station own record for the requested reference period: the minimum, median and maximum, and the percentile the current reading falls at. The reference period is stated with the comparison, because a percentile without a window is not a statistic.

+1 more from natur.halowerk.com

Propagates a circular two-body orbit from altitude, inclination, RAAN, and initial orbital phase; rotates Earth at a fixed sidereal rate; and samples ground-station elevation. It ignores eccentricity, perturbations, epoch-dependent Greenwich angle, refraction, ellipsoid shape, terrain, and antenna masks, so it is a planning estimate rather than operational ephemeris.

+3 more from space.halowerk.com