WCAG accessibility audit of a public URL using headless Chromium and axe-core: violation/pass/incomplete counts by impact, per-rule detail, and a 0-100 score.

Verifies a Mexican electronic invoice (CFDI) with SAT (JSON body, not query params): status (vigente/cancelado), cancelability, and EFOS validation. Requires a real CFDI's UUID, issuer and receiver RFCs, and total; the example values are illustrative and return 404 (not charged).

Validates an 18-digit Mexican CLABE (sent as a JSON body, not a query param): check digit, bank identification (Banxico/SPEI catalog), plaza, and account number.

Structural validation of a Mexican RFC (sent as a JSON body, not a query param): persona física/moral, embedded date, SAT check digit, plus Article 69-B (EFOS) blacklist status.

Install-safety signals for an npm or PyPI package: registry metadata, install-script usage, OSV advisories, typosquat risk, and a 0-100 trust score.

Predicts whether a GitHub repository will merge an AI-authored or external pull request, based on its stated AI/contribution policy and historical merge rates.

Solves a scheduling/roster problem (gym class rosters, dance-school timetables, restaurant shift plans) with OR-Tools CP-SAT: assigns resources to slot demands honoring availability, tags, and constraints (no double-booking, max-per-day, min-rest, forbidden/required pairs, fixed assignments, max total hours), optimizing the requested objective. Infeasible inputs come back with the specific conflicting demands/constraints named.