Science And Education x402 offerings

Creates optimized, ordered curriculum and learning-path sequences tailored to goals, prerequisites, and learner profiles.

Near-Earth asteroids (NEOs) making their closest approach to Earth on a given date (default: today), sorted by distance -- also called close-approach or flyby data. Includes each asteroid's estimated size, relative velocity, and miss distance. Sourced from NASA JPL's Near Earth Object Web Service (NeoWs).

Align authorized declared edition locators for a supported Maha book, with unmapped and ambiguous states. No arbitrary PDF parsing or inferred textual equivalence. New modular adapter: retained result recovery for 24 hours, minimal receipt metadata for 90 days. Existing live route unchanged.

Evaluate whether a mathematical research branch should continue, revise, abstain, or escalate.

RFC 6454: title, authors, publication date, status (Internet Standard, Proposed Standard, Informational…), page count, what obsoletes or updates it and what it obsoletes, keywords, abstract and links to the HTML/text versions, from rfc-editor.org. One RFC, one call, for protocol work. $0.01 per call.

Compute the exact probability distribution of a dice notation — mean, variance, standard deviation, min/max and the full probability mass function — with no sampling. Notations whose outcome range is…

Generates customized assessments tailored to different learner levels and needs.

Multiply or divide two seven-component SI dimension vectors and compare with the expected output dimension. No unit conversion, formula validation, scale-factor inference or physical-model certification. New modular adapter: retained result recovery for 24 hours, minimal receipt metadata for 90 days. Existing live route unchanged.

Multiply or divide two seven-component SI dimension vectors and compare with the expected output dimension. No unit conversion, formula validation, scale-factor inference or physical-model certification.

Binomial distribution with `trials` (n ≥ 0, ≤ 1e6) and success `probability` (0..1). `function` selects the mass (pmf), cumulative distribution (cdf) or quantile / inverse-CDF.

Normal distribution with optional mean (default 0) and standard deviation sd (default 1). `function` selects the density (pdf), cumulative distribution (cdf) or quantile / inverse-CDF.

Poisson distribution with rate `lambda` (> 0, ≤ 1e9). `function` selects the mass (pmf), cumulative distribution (cdf) or quantile / inverse-CDF.

Student's t distribution with df degrees of freedom (> 0). `function` selects the density (pdf), cumulative distribution (cdf) or quantile / inverse-CDF.

Metadata of a publication by DOI (Crossref): title, authors, journal or publisher, year, type, citation count, references, license, link and an APA-formatted citation.

Look up a DOI: full paper metadata (title, authors, journal, volume, issue, pages, year, publisher, funders, subjects), citation and reference counts, abstract, links and a ready APA citation. $0.01 per lookup.

Returns NASA's daily featured space image or video with an explanatory caption.

Returns a random trivia question with multiple-choice answers, optionally filtered by difficulty.

Returns a random trivia question with multiple-choice answers, optionally filtered by difficulty.

Returns NASA's daily featured space image or video with an explanatory caption.

Locate a printed pasuram reference in the pinned Project Madurai/Hart atlas. Resolves one supported number to its complete unit and exact edition-specific locator. No cross-edition renumbering, translation reproduction or single-verse occurrence claim.

Screen a US college or university name against the federal DAPIP database: fuzzy name search returning ranked institution candidates, each with its DAPIP id, OPEID, IPEDS unit id, state and an accredited flag. Cheap first step before edu/verify.

Homeschool curriculum finder / what curriculum should I use / curriculum comparison. Returns personalized curriculum recommendations by grade, subject, learning style, religious preference, and budget with side-by-side comparisons, including a free or low-cost option.

Exam-suite sampler / preview — deterministic, no LLM. For the exam (and optional topic) you name, returns exactly what each paid exam product (prep, mock, grade, flashcards, explain) requires and produces for those inputs, plus real external study-resource links. Agent-tier preview under the exam suite’s $0.50–$1 price points.

Lab quote: a filter query (+must -exclude "topic" (a OR b) wild* year:a..b) in; matching paper volume by year and research community, and a binding price per deliverable out.